Cancer Center Archives - Page 7 of 11 - Sanford Burnham Prebys
Institute News

How a breast cancer advocate shapes research at Sanford Burnham Prebys

AuthorMiles Martin
Date

October 28, 2021

An end goal of all biomedical research is improving outcomes for patients living with illness, but far too often, patient’s voices are not heard in the process. Advocacy programs, such as those offered by the Susan G. Komen Breast Cancer Foundation, help give individuals battling illness a voice in the lab. They also provide critical insights for the researchers doing the science.

To learn more about the role of patient advocates in cancer research, we spoke with Svasti Haricharan, PhD, an assistant professor at Sanford Burnham Prebys, and Karen McDonald, a patient advocate working with Haricharan’s team. Karen, a retired computer applications professor, has been working with Svasti’s group since 2020 and has battled three forms of cancer in her life, including her current fight with metastatic breast cancer, which began in 2020.

Today, she is helping in the broader fight against cancer by bringing her unique perspective to the lab, both as a retired scholar and as a woman living with cancer.

What do patient advocates bring to the lab and why are they so important?

Karen: I was a neurology technician many years ago, so I have some science background, but I’m not an expert in the type of science that Svasti and her team do. I look at things from a patient’s point of view – not as a scientist or a doctor. I ask questions most patients would ask—but not necessarily questions scientists think about.

One of the things I’ve learned is that I need to have research presentations ahead of time—before a lab meeting—so I can figure out the technical terms. Once I’ve done that, I can bring a real-life perspective to the research—because the scientists aren’t treating patients. Svasti and her team thankfully welcome my input.

Svasti: I agree completely. Having an advocate really helps me and everybody else on the team see things in a completely different way. I think the experience also helps humanize scientists, because it’s easy, especially in biomedical research, to become so focused on the next paper or the next grant that we forget we came into research not to publish papers, but to do amazing science and help people. And having Karen’s perspective does influence what we do.

For example, there was a project on nutraceutical research, or using food as medicine, which a lot of funders don’t want to support because some people think it’s just made up. I was ready to give up on the project because it wasn’t getting support, but Karen brought up the point that patients would love to see this transitioned into the clinic because it’s less toxic with fewer side effects. I went to the top at Sanford Burnham Prebys and actually got funding to develop a drug to mimic the nutraceutical’s effects. I’m not sure this would have happened without Karen’s input—and now we are hopeful for the results.

How far have we come toward giving patients their due voice, and what are some hurdles we need to overcome?

Karen: As times have changed, physicians have stopped being thought of as gods and have started to be more human. They make mistakes. And women in particular have become more active in their healthcare because we were ignored for so long. When women started to speak up, doctors started to listen. I think is why patient advocacy started with breast cancer. Women are communicators and take an integral role in their family’s healthcare. But we still have a long way to go in terms of giving advocates’ voices full consideration.

Svasti: Karen brings up a great point here that women are more used to having to fight to have their voices heard, and that’s why breast cancer helped start the patient advocacy movement through organizations like Susan Komen. It’s beginning to spread beyond breast cancer as more funding agencies are including advocates as grant reviewers, because these are the people who are going to benefit directly from the research. 

I think one thing that’s still a problem is not taking an advocate’s input seriously enough. I often see grant applications where the advocate says that a project is very significant, but other reviewers find some nitpicky aspect of the research strategy they don’t like, and the grant doesn’t get funded. There must be a better way for patient advocates’ voices to be included, as opposed to just having them on a review panel to check a box.  

What’s something you’d want to tell people who may not know much about cancer research or patient advocacy? 

Karen: People need to take it upon themselves to learn more about how research is done. There is such a big divide between scientists and patients, and that’s part of why patients go unheard. Even when you ask your physician about the latest research, they don’t always know.

It’s great that we have the internet now to help. I have a friend with lymphoma and that’s what we spend our time doing – researching the latest science, because we want to make sure we’re in charge of driving our own bus, not letting others have full control.

We need an environment of open-mindedness and willingness to learn. And that goes for physicians as well. We need bridges to connect cancer researchers with the oncologists who are actually going to implement their work and help humanity. 

Svasti: That’s such an important idea because just like patient advocates, working with clinicians is sometimes a check box for researchers as well. It’s essential that we have meaningful collaborations—between science and medicine—that can advance research breakthroughs and improve patient outcomes. 

I once spoke at a conference that had both patient advocates and researchers, and an advocate came up to me after my talk and asked, “Well what are you doing about this? If your research is real and important, why aren’t you bringing this to clinicians to get this into a clinic to help me?” That really blew my mind, because even though my role is to study cancer in the lab, she was right. Just like we need patient advocates in the lab, scientists need to advocate for research that will help patients the most. 

Saying Goodbye to Dawn Dunsmore: A reflection from Josh Baxt

In September 2021, we lost Dawn Dunsmore to breast cancer, a disease she fought for a decade. Dawn was one of Sanford Burnham Prebys’ many committed administrators, most recently in Carl Ware’s lab, before stepping down to pursue treatment. She was a mom, an adventurer, an animal lover, a stubborn fighter and a friend to many, myself included.

Dawn had the bad luck of developing triple-negative breast cancer—one of the deadliest—and  the good luck of being surrounded by people who loved her. She had been working for Carl for about two years when she told him about the lump in her chest. She was quickly diagnosed and treated, but the tumor soon returned.

“Dawn was approaching the end very quickly,” says Bobbie Larraga, Community Relations Manager and one of Dawn’s closest friends. “She was having seizures and difficulty breathing, and we were starting to make end-of-life plans.”

In the background, Carl, a world-renowned immunologist, helped Dawn get into a Moores Cancer Center clinical trial for an immunotherapy (PD-1 inhibitor) that takes the brakes off T cells, allowing them to attack tumors. PD-1 inhibitors work for about a third of patients and, fortunately, Dawn was one of them.

Dawn Dunsmore standing against a green foliage background

“It’s even crazier because breast cancer is not one that typically responds well to checkpoint inhibitors,” says Carl, who directs the Infectious and Inflammatory Disease Center at Sanford Burnham Prebys. “She was lucky to have that response.”

When they work, immunotherapies are like a little miracle, and Dawn did not take that lightly. She’d been given a reprieve and had things to do.

“She was just crazy for travel,” says Bobbie. “She went with her daughter to Spain. Italy, Indonesia, India, Central America. She went skydiving and was able to really check off things on her bucket list.”

But the cancer never quite went away. There were more treatments and surgeries and at 51, she finally ran out of options. Even in September, when the hospital would not release her, she was planning a trip to Yosemite.

Thinking Forward

There are so many stories. Bobbie shared how Dawn interviewed her when she first applied at Sanford Burnham Prebys (then the Burnham Institute); how they had an instant connection. Carl described the incredible work they accomplished, and how her support helped him keep it together when his wife was dying of Alzheimer’s. 

I don’t usually insert myself into the articles I write – it’s just not appropriate – but Carl asked if I would, and that got me thinking. I joined Sanford Burnham Prebys in 2008, and the first piece I wrote here was a news release for the faculty member Dawn was working for. I was pretty green and Dawn helped me through, the first time of many. She was a generous soul.

Dawn was one of our own and it hurts that she’s gone. Like many at our Institute, she worked long hours to shepherd papers and grants through and helped manage the labs where she worked. She didn’t complain, even when she had the right.

Her experience underscores Sanford Burnham Prebys’ important work. Immunotherapies were first tested in academic labs, much like ours. It also brings home that the statistics we read so often, five-year survival rates or whatever, are representations of real people. The long hours, the stress of so many deadlines, the weekends in the lab, there’s a reason for those. And it’s a good one.

Institute News

Scientists design potential drug for triple-negative breast cancer

AuthorMonica May
Date

February 16, 2021

Drug candidate blocks autophagy, a cellular recycling process that cancer cells hijack as a way to resist treatment

Scientists at Sanford Burnham Prebys Medical Discovery Institute have designed a next-generation drug, called SBP-7455, which holds promise as a treatment for triple-negative breast cancer—an aggressive cancer with limited treatment options. The drug blocks a cellular recycling process called autophagy, which cancer cells hijack as a way to resist treatment. The proof-of-concept study was published in the Journal of Medicinal Chemistry.

“Scientists are now learning that autophagy is one of the main ways that cancer cells are able to survive, even in the presence of growth-blocking treatments,” says Huiyu Ren, a graduate student in the laboratory of Nicholas Cosford, PhD, at Sanford Burnham Prebys, and first author of the study. “If all goes well, we hope this compound will stop cancer cells from turning on autophagy and allow people with triple-negative breast cancer to benefit from their treatment for as long as possible.”

Cells normally use autophagy as a way to recycle waste products. However, when cancer cells’ survival is threatened by a growth-blocking treatment, this process is often “revved up” so the cancer cell can continue to receive nutrients and keep growing. Certain cancers are more likely to rely on the autophagy process for survival, including breast, pancreatic, prostate and lung cancers.

“While this study focused on triple-negative breast cancer, an area of great unmet need, we are actively testing this drug’s potential against more cancer types,” says Cosford, professor and deputy director in the National Cancer Institute (NCI)-designated Cancer Center at Sanford Burnham Prebys and senior author of the study. “An autophagy-inhibiting drug that stops treatment resistance from taking hold would be a great addition to an oncologist’s toolbox.”

About 15% to 20% of all breast cancers are triple negative, which means they do not respond to hormonal therapy or targeted treatments. The cancer is currently treated with surgery, chemotherapy and radiation, and is deadlier than other breast cancer types. If the tumor returns, other treatments such as PARP inhibitors or immunotherapy are considered. People under the age of 50 are more likely to have triple-negative breast cancer, as well as women who are Black, Hispanic, and/or have an inherited BRCA mutation.

An optimized drug

In this study, the scientists optimized a first-generation drug they created in 2015. The result is a compound called SBP-7455 that blocks two autophagy proteins, ULK1 and ULK2. SBP-7455 exhibits promising bioavailability in mice and reduces autophagy levels in triple-negative breast cancer cells, resulting in cell death. Importantly, combining the drug with PARP inhibitors, which are currently used to treat people with recurrent triple-negative breast cancer, makes the drug even more effective.

“We are hopeful that we have found a new potential therapy for people living with triple-negative breast cancer,” says Reuben Shaw, PhD, a study author and professor in the Molecular and Cell Biology Laboratory and director of the NCI-designated Cancer Center at the Salk Institute. “We envision this drug being used in combination with targeted therapies, such as PARP inhibitors, to prevent cancer cells from becoming treatment resistant.”

Next, the scientists plan to test the drug in mouse models of triple-negative breast cancer to confirm that the compound can stop tumor growth in an animal model. In parallel, they will continue optimization efforts to ensure the drug has the greatest chance of clinical success.

“Triple-negative breast cancer is one of the hardest cancers to treat today,” says Ren. “I hope that our research marks the start of a path to successful treatment that helps more people survive this aggressive cancer.”


Additional study authors include Nicole A. Bakas, Mitchell Vamos, Allison S. Limpert, Carina D. Wimer, Lester J. Lambert, Lutz Tautz, Maria Celeridad and Douglas J. Sheffler of Sanford Burnham Prebys; Apirat Chaikuad and Stefan Knapp of the Buchmann Institute for Molecular Life Sciences and Goethe-University Frankfurt; and Sonja N. Brun of the Salk Institute.

This work was supported by the National Institutes of Health (P30CA030199, T32CA211036), Epstein Family Foundation, Larry L. Hillblom Foundation (2019-A-005-NET), Pancreatic Cancer Action Network (19-65-COSF), SGC—a registered charity that receives funds from AbbVie, Bayer Pharma AG, Boehringer Ingelheim, Canada Foundation for Innovation, Eshelman Institute for Innovation, Genome Canada through Ontario Genomics Institute [OGI-196], EU/EFPIA/OICR/McGill/KTH/Diamond, Innovative Medicines Initiative 2 Joint Undertaking (875510), Janssen, Merck KGaA, Merck & Co, Pfizer, São Paulo Research Foundation-FAPESP, Takeda, and Wellcome.

The study’s DOI is 0.1021/acs.jmedchem.0c00873.

Institute News

Mining “junk DNA” reveals a new way to kill cancer cells

AuthorMonica May
Date

February 11, 2021

Scientists unearth a previously unknown vulnerability for cancer and a promising drug candidate that leverages the approach

Scientists at Sanford Burnham Prebys have uncovered a drug candidate, called F5446, that exposes ancient viruses buried in “junk DNA” to selectively kill cancer cells. Published in the journal Cell, the proof-of-concept study reveals a previously unknown Achilles’ heel for cancer that could lead to treatments for deadly breast, brain, colon and lung cancers.

“We found within ‘junk DNA’ a mechanism to stimulate an immune response to cancer cells, while also causing tumor-specific DNA damage and cell death,” says Charles Spruck, PhD, assistant professor in the National Cancer Institute (NCI)-designated Cancer Center and senior author of the study. “This is a very new field of research, with only a handful of papers published, but this has the potential to be a game-changer in terms of how we treat cancer.”

Since the human genome was fully sequenced in 2003, scientists have learned that our DNA is filled with some very strange stuff—including mysterious, noncoding regions dubbed “junk DNA.” These regions are silenced for a reason—they contain the genomes of ancient viruses and other destabilizing elements. An emerging area of cancer research called “viral mimicry” aims to activate these noncoding regions and expose the ancient viruses to make it appear that a cancer cell is infected. The hypothesis is that the immune system will then be triggered to destroy the tumor.

A one-two punch to cancer

In the study, Spruck and his team set out to find the molecular machinery that silences “junk DNA” in cancer cells. Using sophisticated molecular biology techniques, they found that a protein called FBXO44 is key to this process. Blocking this protein caused the noncoding sections of DNA to unwind—but not for long.

“When we revealed noncoding regions, which aren’t meant to be expressed, this caused DNA breakage. This told the cell that something is deeply wrong, and it committed suicide,” explains Spruck. “At the same time, the DNA of the ancient virus was exposed, so the immune system was recruited to the area and caused more cell death. So, we really delivered a one-two punch to cancer.”

The scientists then showed that a drug that targets the FBXO44 pathway, called F5446, shrank tumors in mice with breast cancer. The drug also improved the survival of mice with breast cancer that were resistant to anti-PD-1 treatment, an immunotherapy that is highly effective but often stops working over time. Additional studies in cells grown in a lab dish showed that the drug stops the growth of other tumors, including brain, colon and lung cancers.

The scientists also conducted many experiments to show that this silencing mechanism only occurs in cancer cells, not regular cells. Analysis of patient tumor databases confirmed that FBXO44 is overproduced in many cancers and correlated with worse outcomes—further indicating that a drug that inhibits this protein would be beneficial.

Moving the research toward people

As a next step, the scientists are working with the Conrad Prebys Center for Chemical Genomics to design an FBXO44 pathway-inhibiting drug that is more potent and selective than F5446. This state-of-the-art drug discovery facility is located at Sanford Burnham Prebys.

“Now that we have a compound that works, medicinal chemists can make modifications to the drug so we have a greater chance of success when we test it in people,” says Jia Zack Shen, PhD, staff scientist at Sanford Burnham Prebys and co-first author of the study. “Our greatest hope is that this approach will be a safe and effective pan-cancer drug, which maybe one day could even replace toxic chemotherapy.”

 

Institute News

Meet cancer researcher Karina Barbosa Guerra

AuthorMonica May
Date

February 3, 2021

Barbosa Guerra is working to find better treatments for a deadly leukemia

For Karina Barbosa Guerra, touring a lab and meeting scientists as part of her Girl Guides troop—Mexico’s equivalent of the Girl Scouts—was a life-changing experience. Suddenly, she could see herself as a scientist.

Today, Barbosa Guerra is a graduate student in the Deshpande lab at Sanford Burnham Prebys, where she’s working to find better treatments for a blood cancer called acute myeloid leukemia (AML). We caught up with Barbosa Guerra as she prepares to take the virtual stage at the Diversity and Science Lecture Series at UC San Diego (DASL) to learn more about when she decided she wanted to be a scientist and where she can be found when not in the lab.

Tell us about the moment you realized you wanted to be a scientist.
According to my mother, I stated that I wanted to become a chemist to develop vaccines when I was ten years old. However, it wasn’t until middle school that I started cultivating my own sense of scientific curiosity. At that time, I was in a Girl Scouts program centered on HIV/AIDS peer education, so I began to read a bit more about viruses. It was incredibly amazing that they could linger undetected in our bodies—and that many questions about their biology remained unanswered. The more I learned, the less I felt I knew, and I wanted to follow that endless string of questions.

What do you study, and what is your greatest hope for your research?
I study a cancer called acute myeloid leukemia—specifically, subtypes that are hard to treat. Certain cancer cells, like stem cells, are pretty resilient and can self-renew. This enables them to resist therapy, so we want to discover better ways to target this particular feature. My research aims to find ways in which we can treat these leukemias based on their stem cell–like capabilities. My hope is that we can ultimately benefit the patients enduring harsh treatments and disease relapse, and along the way, illuminate the fascinating aspects of the biology behind effective treatments.

What do you wish people knew about science?
That it’s a team effort. The current coronavirus pandemic has really shown us that collaboration is at the heart of transformative science. I think that great ideas are best developed through discussion—and the thrill of putting the pieces together is way more enjoyable with company.

How do you think your lab colleagues would describe you?
Maybe as the girl with a bunch of notebooks. I like to make notes of everything. My notebooks are way more reliable than my memory.

What is the best career advice you’ve ever received?
Early in the graduate program, one of my mentors told me, “Be there,” meaning that I had to spend time with my science. If I were to discover something or make a great insight, I had to be there to do it, think it or see it.

What do you wish people knew about Sanford Burnham Prebys?
That this is such a welcoming community. I felt this the very first time I visited the campus, and I feel so at home here as a student. There are plenty of opportunities to engage with others and help each other out. I really enjoy the collaborative spirit of our little community.

Learn more about the Institute’s Graduate School of Biomedical Sciences.

Institute News

Scientists uncover protein that empowers antibodies

AuthorMonica May
Date

January 11, 2021

Discovery may lead to better vaccine strategies and improve treatments for cancer and autoimmune disorders

Antibodies are the heroes of our immune system. They protect us from viruses, like SARS-CoV-2 (which can lead to COVID-19), as well as bacteria and other pathogens. They can provide lifelong protection from future infections—if they are strong enough. But, like any hero, they are fallible, and certain cancers or autoimmune disorders can arise when things go wrong.

Now, Sanford Burnham Prebys scientists have revealed that a protein called cyclin D3 tells antibody-producing B cells to start dividing—opening new research avenues that could improve vaccine development or the treatment of B cell lymphoma and autoimmune disorders. The discovery was published in Cell Reports.

Antibodies get their power from a complicated process. When an “intruder” is detected in the body, B cells—which produce antibodies—are activated. Each B cell is unique—they contain slight genetic variations to produce a diverse set of antibodies to attack the “intruder.” Later, they undergo optimization through a “survival of the fittest” process to identify the most protective versions.

“Our findings reveal that cyclin D3 is the ‘go’ signal for B cells to start rapidly dividing and producing a set of diverse antibodies,” says Parham Ramezani-Rad, PhD, a postdoctoral researcher in the Tumor Microenvironment and Cancer Immunology Program at Sanford Burnham Prebys and the lead author of the study. “This information might help scientists create better vaccine strategies in the future. On the flip side, researchers may be able to develop better weapons against B cell lymphoma and autoimmune disorders by removing malignant B cells.”

Parham Ramezani-Rad, PhD

​Parham Ramezani-Rad, a postdoctoral researcher at Sanford Burnham Prebys and lead author of the study.

Diving into the “dark zone”

After infection, B cells grow and divide in special structures called germinal centers that form in our spleen and lymph nodes. In this structure, a “dark zone”—referring to what scientists saw under the microscope in the 1930s—and a “light zone” are visible. Now researchers know the dark zone is where B cells are rapidly expanding, and this cell density appeared darker in the original microscope studies. After proliferating in the dark zone, B cells head to the light zone where the best potential antibody options are selected—while less desirable options are eliminated.

Cell Reports cover

Parham Ramezani-Rad designed the image that was featured on the cover of Cell Reports. The image is an artistic impression of the dynamics occurring inside of the germinal center, where antibody-producing B cells undergo a “survival of the fittest” selection process.

​Ramezani-Rad made the discovery when studying B cell lymphoma, a blood cancer that often contains a mutation that leads to hyper-stable cyclin D3. Using mice and sophisticated CRISPR gene editing technology, he discovered that cyclin D3 regulates the expansion or contraction of B cells specifically in the dark zone of germinal centers—and not the light zone. He also identified other regulatory aspects involved in this process that scientists might be able to harness for the benefit of human health.

“B cell lymphoma is often treated with an intensive chemo and immunotherapy combination. The side effects of this treatment can be immense, and relapses may occur,” says Ramezani-Rad. “Our findings about cyclin D3 could form the basis for a more tailored medicine that targets exactly what goes wrong during B cell lymphoma, and is potentially less toxic and more effective.”

Ramezani-Rad also designed the image that was selected for the journal cover, which is his artistic impression of the dynamics occurring inside the germinal center. He finds many parallels between scientists and artists.

“As a scientist, I see myself describing what already exists in nature,” explains Ramezani-Rad. “Musicians and painters are also describing the world. They are just using instruments or paint strokes to express emotions, whereas scientists use data to express knowledge.”

Institute News

Sanford Burnham Prebys researchers awarded 2020 Padres Pedal the Cause grants

AuthorSusan Gammon
Date

July 9, 2020

We are pleased to announce that Padres Pedal the Cause (PPTC) has awarded three collaborative research grants to Sanford Burnham Prebys, Moores Cancer Center at UC San Diego Health and the Salk Institute. Funding for the research comes from the record setting $3.1 million raised in the 2019 event and brings the lifetime raise for PPTC to over $13 million.

PPTC’s goal is to leverage the strengths of San Diego—home to three nationally recognized NIH cancer institutions and a renowned pediatric hospital. Each grant unites scientists at beneficiary institutions and aims to advance research toward developing therapies to attack and cure cancer.

Congratulations to the recipients!

  • Robert Wechsler-Reya, PhD, (SBP) and John Crawford, MD, (Moores Cancer Center/Rady Children’s) will work on a new approach to treat medulloblastoma—the most common malignant brain tumor in children.
  • Garth Powis, D. Phil., (SBP) Pradipta Ghosh, MD, (Moores Cancer Center) and Michael Bouvet, MD, (Moores Cancer Center) are joining forces to find medical treatments for gastric cancer—a disease for which no therapy exists. 
  • Nicholas Cosford, PhD, (SBP) Hatim Husain, MD, (Moores Cancer Center) and Reuben Shaw, PhD, (Salk Institute) will perform a first-of-its-kind study for lung cancer—the number one cause of cancer-related deaths per year.

The PPTC event featured multiple cycling courses, a 5K run or walk, spin classes and kid-friendly activities. The number of participants reached an all-time high of nearly 3,000 in 2019.

Congratulations to everyone who worked, played and cycled their way to success!

Read the full list of 2020 grants funded by Padres Pedal the Cause.

Institute News

Padres Pedal the Cause donates $3.1 million to cancer research

AuthorMonica May
Date

February 18, 2020

Garth Powis, who heads our NCI-designated Cancer Center, joined representatives from the beneficiary institutes onstage for the check presentation ceremony.

Padres Pedal the Cause (PPTC) hit it out of the ballpark, revealing that its 2019 event at Petco Park raised a record $3.1 million to accelerate local cancer research. 

The amount, revealed in an evening ceremony held on Thursday, February 6, brings the total raised to $13.2 million. Garth Powis, D. Phil., director of Sanford Burnham Prebys’ National Cancer Institute (NCI)-designated Cancer Center—one of only seven in the nation—joined representatives from the beneficiary institutes onstage for the check presentation ceremony. 

The audience in the packed auditorium gave the news a standing ovation. Most guests, who included hundreds of event participants, San Diego business leaders, top donors and fundraisers, as well as Padres Pedal founders Bill and Amy Koman, have firsthand experience with cancer—the number-one cause of death in San Diego. 

Typically held in November, PPTC features multiple cycling courses, a 5K run or walk, spin classes and kid-friendly activities. The number of participants has steadily increased since the event’s launch in 2013—reaching an all-time high of nearly 3,000 individuals last year. 

The nonprofit’s goal is to leverage the incredible strengths of San Diego—home to three nationally recognized NIH cancer institutions and a renowned pediatric hospital—to bring us closer to cancer cures. Each PPTC grant unites scientists at two or more of the four beneficiary institutions, which include Sanford Burnham Prebys, Moores Cancer Center at UC San Diego Health, Rady Children’s Hospital and the Salk Institute for Biological Studies. Past grants have accelerated our research into cancers of the breast, skin, brain, colon, pancreas and more. 

The 2020 event date will be revealed in mid-April. Visit www.gopedal.org for the latest details.

Institute News

How to help children survive—and thrive—after a brain cancer diagnosis

AuthorMonica May
Date

January 13, 2020

Lynne Selinka knew in her heart that something was seriously wrong with her 10-year-old son, Travis. For months he had experienced dizziness, vomiting and headaches, despite his doctor’s best efforts to find a cause. A visit to Rady Children’s Hospital-San Diego revealed a heartbreaking diagnosis: Travis had a malignant brain tumor. He was operated on the next day and then endured two months of radiation treatment followed by six rounds of chemotherapy.

“That year, Travis asked Santa, ‘Can I please be done with chemo before Christmas?’” Lynne said. “It was by far the hardest year of our life.”

Brain tumors are the most common cause of cancer-related death in children—recently surpassing leukemia. To help the public learn about the latest efforts to develop better treatments for pediatric brain cancer, our Institute teamed up with the Fleet Science Center to host a panel discussion on Sunday, December 8. Travis and his parents, Lynne and Tony, shared their story alongside the clinician who treated Travis, John Crawford, MD, director of Pediatric Neuro-Oncology at Rady Children’s Hospital-San Diego; and a scientist working on personalized treatments for pediatric brain cancer, Robert Wechsler-Reya, PhD, of Sanford Burnham Prebys and Rady Children’s Institute for Genomic Medicine. 

As the speakers explained, while aggressive therapies have improved outcomes for children with brain tumors (today Travis is a junior in high school), one in four children with a malignant brain tumor does not survive. Children who do survive have an increased risk of severe long-term side effects from undergoing aggressive treatment at such a young age, including developing additional cancers or experiencing intellectual disability. Six years after he was declared cancer-free, Travis was diagnosed with chronic myeloid leukemia, a type of blood cancer caused by his previous chemotherapy. So far, his new treatment is working.

Wechsler-Reya hopes his work to develop personalized therapies based upon an individual’s tumor could help spare children from this painful experience. By analyzing patient tumor samples—obtained from Rady Children’s Hospital—his team works to understand the cancer at a molecular level, studying the tumor’s DNA mutations, changes in gene expression, responses to drugs, and much more. Armed with this information, the scientists then work to find therapies that are customized to a child’s specific tumor—and may be more effective and less toxic.

“For pediatric brain cancer, success doesn’t just mean better treatments. It also means developing treatments with fewer long-term side effects,” says Wechsler-Reya. “If successful, this work might help more children not only survive brain cancer, but also live a long, healthy life after treatment.

Travis and his family welcome this work with open arms.  

“We try to look for a silver lining in every day. Travis has become an amazing public speaker and now shares his story with other children fighting brain cancer. But each part of our journey has been so hard—from receiving the diagnosis, seeing Travis go through a painful surgery and then chemo, not knowing if the treatments would work, and then being diagnosed with another cancer almost six years later,” said Lynne. “We are so grateful for the efforts of researchers who are working toward a world where a child doesn’t have to go through what Travis did—or at least is spared from some of the hardest parts of the journey.”

This event was the last of our five-part “Cornering Cancer” series at the Fleet Science Center. Read about our past discussions focusing on lung, blood, breast and pancreatic cancers.

Institute News

Prestigious Forbeck Scholar Award granted to Sanford Burnham Prebys cancer researcher

AuthorMonica May
Date

December 23, 2019

Breast cancer expert Brooke Emerling, PhD, an assistant professor at Sanford Burnham Prebys, has been named a Forbeck Scholar by the William Guy Forbeck Research Foundation.

This prestigious award recognizes early-career cancer researchers for their achievements, research and dedication to the field. As an award winner, Emerling receives rare access to several three-day “think tank” events featuring the world’s top cancer clinicians and scientists.

“My goal is to create therapies that help more breast cancer patients survive cancer,” says Emerling. “The opportunity to discuss my ideas and research with the absolute leaders in my field is incredible and only accelerates my work toward that end.”

Emerling is working to find treatments for triple-negative breast cancer, which is treatable only with standard surgery, chemotherapy and radiation. The lack of specific treatments means that it has a mortality rate three times higher than the other types of breast cancer. Emerling is working to find a personalized medicine that blocks several proteins she identified that allow the triple-negative breast cancer to grow, called PI5P4Ks.

The William Guy Forbeck Research Foundation was established in 1985 by George and Jennifer Forbeck in honor of their son, who succumbed to a rare childhood cancer at age 11. Today the foundation promotes advances in cancer research through collaboration. The foundation began the Forbeck Scholar award as a way to recognize early-career cancer researchers with great future promise. Past Forbeck Scholar award winners hail from Dana-Farber Cancer Institute, the Broad Institute, Cold Spring Harbor Laboratory and other top-tier institutes.

Institute News

Starving the “world’s toughest cancer”

AuthorMonica May
Date

November 18, 2019

Russell Gold is lucky to be alive. Only 9% of people with pancreatic cancer survive longer than five years—making it one of the deadliest cancers. This January, he will be a six-year survivor. 

To help the public better understand what makes pancreatic cancer so lethal—and how we can develop medicines so there are “more of me,” as Gold said—our Institute teamed up with the Fleet Science Center to host a panel discussion on Sunday, November 17. Gold was joined by a clinician and a scientist who both work on pancreatic cancer: Darren Sigal, MD, of Scripps Health; and Cosimo Commisso, Ph.D., an assistant professor at Sanford Burnham Prebys’ National Cancer Institute (NCI)-designated Cancer Center, respectively. 

As the speakers explained, pancreatic cancer is often difficult to diagnose because symptoms—such as pain in the abdomen, yellow skin and eyes, and weight loss—do not typically occur until the disease is advanced. As a result, pancreatic cancer is the 11th most common cancer but the second-leading cause of cancer death. More than 56,000 Americans are expected to receive a pancreatic cancer diagnosis in 2019, according to the American Cancer Society. 

Commisso, who was recently named a NextGen Star by the American Association for Cancer Research, is hopeful that his research will lead to effective treatments for pancreatic cancer. Commisso’s research focuses on how rapidly growing pancreatic tumors scavenge nutrients using an alternative supply route, called macropinocytosis. His lab has found that blocking this process, often described as “cellular drinking,” causes pancreatic tumors to shrink—indicating that the approach could lead to tumor-starving drugs. 

This event was the fourth of our five-part “Cornering Cancer” series. Register today to join us for a discussion on pediatric brain cancer in December.