Luis Carvajal-Carmona, Ph.D.

Prinipal Investigator

Luis joined UC Davis as an Assistant Professor in 2012 and was promoted to Professor in 2019. In addition to leading his research laboratory, Luis is the holder of the Auburn Community Cancer Endowed Chair in Basic Science and the Associate Director for Basic Science at the UC Davis Comprehensive Cancer Center. He also is the leader of the Cancer Center’s Latinos United for Cancer Health Advancement (LUCHA) initiative and the co-director Community Engagement Program at the Clinical and Translational Science Center.

Luis has interest and expertise in cancer genetics, population genetics, genetic demography of minority groups and functional genomics. Before joining UC Davis, Luis was a Senior Research Fellow at the Wellcome Trust Centre for Human Genetics in the University of Oxford. He did his postdoctoral fellowship at the London Research Institute and his PhD at University College London. Luis enjoys cycling, hiking and other outdoor activities. He also enjoys traveling and spending time with his young family.

Luis Carvajal-Carmona

Quincey Rush

Executive Assistant

Quincey provides high level executive administrative support to Professor Carvajal. She spends her days managing his calendar, coordinating logistically complex meetings, processing domestic and foreign travel schedule and arrangement, answering emails and the multitude of questions that come her way. When she is not helping manage office and work files, preparing and submitting travel and expense reports at the Genome Center, Quincey enjoys spending time with her husband and two sons, working out and camping.

Íñigo Verduzco Gallo

Project Coordinator

Coming Soon

Hongyong Zhang, Ph.D.

Associate Project Scientist

Education: Ph.D. (Preventive Veterinary Medicine) from Jilin University in China (2003).

Research Interests:

  • Characterizing Treatment Responses with patient-derived xenograft models for Gastric and Liver cancers
  • Targeting nanotherapeutics against bladder cancer
  • Targeting nanoparticles to eradicate leukemia stem cells


Paul Lott, Ph.D.

Assistant Project Scientist

Paul joined the lab in 2013 as a Postdoctoral Scholar. He is interested in developing and applying bioinformatics tools to aid genetic analysis of cancer. Paul is currently involved in researching Gastric, Breast,and Colorectal cancer in Hispanic populations using GWAS’ and NGS datasets. He oversees the lab database and web development teams, as well as providing bioinformatics training for lab.

Paul enjoys development of bioinformatics applications that help wet-lab biologist to be able to more easily do bioinformatics. In his free time, he’s generally fiddling around with computer systems (PC, Raspberry Pi), electronics (CNC, 3D Printers, Arduino), overseeing a small Maker Club (LagunaCreekMakers) or chasing his three kids.

Dennis Montoya, Ph.D.

Assistant Project Scientist

Dennis is a wet-lab immunologist turned computational biologist.  He joined UC Davis Health as an Assistant Researcher in 2020 and the Carvajal-Carmona lab in 2022.  His current projects are in the genetic analysis of gastric cancer in Latino populations and the transcriptional analysis of the gastric tissue microenvironment.  Dennis also works with the Chien Laboratory where he is investigating the effects of germline SNPs on ovarian cancer progression.  He also is standardizing the often-overlooked patient treatment data from The Cancer Genome Atlas (TGCA) where he is developing a web app to allow treatment-genomic and treatment-outcome associations.

Dennis has happily spent his whole career in the UC-system, receiving his BA at UC Berkeley, and Ph.D. at UCLA.  He is passionate that diversity promotes scientific excellence and has extensive experience in diversity outreach.  Dennis serves as a committee member of the Inclusion, Diversity, Anti-Racism, and Equity (I-DARE) Taskforce for the Biochemistry & Molecular Medicine department. On his downtime, Dennis enjoys gravel cycling, volunteering in the community activities, and spending time with his son.

Nicole Halmai, Ph.D.

Postdoctoral Scholar

Nicole is a native of Phoenix, Arizona. She graduated from Denison University with a B.S. in Molecular and Cellular Biology, where she was also a student athlete on the Denison women’s basketball team. At UC Davis, she earned her Ph.D. in Molecular, Cellular and Integrative Physiology with a Designated Emphasis in Biotechnology and was an NIH MCB T32 Training Fellow. As a postdoctoral researcher in the Carvajal-Carmona lab, Nicole leads the functional genomics team, which focuses on the characterization of therapeutically-relevant cancer driver variants in patient-derived models, with a specific focus on racial and ethnic minority cancer patients, to address cancer health disparities. Her work includes the use of CRISPR/Cas9 genome editing technology and patient-derived 2D and 3D cell culture models. Access her LinkedIn for more info about Nicole:

When she is not in the lab, Nicole enjoys her role as a kickboxing instructor at Performance 22 in Davis. She can usually be found exploring new hiking trails or food spots around the Davis/Sacramento area with her husband and puppy.

Ana Estrada-Florez, Ph.D.

Postdoctoral Scholar

Ana is from Colombia, she graduated from the University of Nariño with a BS in Biology. She became a member of the “Cytogenetics Research Group” at the University of Tolima in 2012 during her M.Sc. in biology and her research was to study the association between papillary thyroid cancer (PTC) and SNPs, previously reported in European and Asian populations.

During her Ph.D. in Biomedical Sciences at the University of Caldas, she joined Dr. Carvajal’s lab as a visiting scholar to conduct research aimed to analyzing the epidemiology of thyroid cancer in Latinos and to discover new variants associated with the risk of the disease by using GWAS and WES.

She loves to bike, hike and dive.

Guadalupe Carvajal, M.Sc.

Associate Research Specialist

Guadalupe is an experienced wet lab scientist who worked in several UK research groups (University College London, London Research Institute, Queen Mary University of London and University of Oxford) before joining our group. She has extensive expertise in genomics and molecular biology and enjoys training both UC Davis students and international visitors. She enjoys reading and watching drama series.

Alma Poceros-Coba

Integrative Genetics and Genomics Graduate Student Researcher

I am a Ph.D. student in the Integrative Genetics and Genomics program at the University of California Davis. I got my Bachelor’s degree in Chemistry, Biology, and Pharmacology at Benemérita Universidad Autónoma de Puebla, Mexico. My interest is to understand the new approaches to elucidate the cancer etiology and the relevance of the environmental factors, with a focus on minority populations. Another goal is to develop my bioinformatics skills along with my career. I am a recipient of the UC Mexus-CONACYT fellowship.

April Vang

Junior Specialist Researcher

April received her Bachelor of Science in Statistics with an emphasis in Data Science and a minor in Computer Science from the University of California, Davis. In her undergraduate senior year, she was a student statistician in the Carvajal-Carmona lab looking into cancer registry data, community-based cancer health survey, and aided in statistical research analysis. April will be focusing on genetic epidemiological analysis, analyses of cancer registry data, and the application of disease gene mapping techniques and modeling. In her free time, she enjoys spending time with her family, video making, biking, and playing chess.

Katherine Chiu

Junior Specialist – Bioinformatics

Katherine received her Bachelor of Science in Genetics and Genomics and Bachelor of Arts in Music from UC Davis in 2022. She is interested in the intersection of data science and healthcare– specifically, using genomics to address racial and ethnic cancer health disparities. As a researcher in the lab, she has been conducting local ancestry analyses to characterize ancestral differences in cancer development. In her spare time, Katherine enjoys playing trombone, hiking, and surfing.

Alix Andrea Guevara Tique

Visiting Doctoral Student (Biomedical Sciences of the University of Tolima)

Alix is biologist, PhD in Biomedical Science and researcher of Grupo de Citogenética, Filogenia y Evolución de Poblaciones at the University of Tolima, Colombia; and Unidad de Investigación en Enfermedades Infecciosas at IMSS, Mexico. She has focused on the genomic analysis of Helicobacter pylori bacteria to determine how its ancestry, population structure, and virulence factors are associated with the risk of developing gastric cancer in Colombian mestizo populations..

Justin Ibarra

Undergraduate Researcher

Justin is an Undergraduate student pursuing a degree in Human Biology with a minor in English, and he is also an NSF/LSAMP CAMP Scholar. He has done work on identifying the presence of Epstein-Barr virus (EBV) in gastric cancer and observing its frequency in comparison to patient-derived xenografts and organoids. Currently, he is learning how to generate and maintain organoid cultures of minority patients with gastric adenocarcinomas and will work towards testing different therapeutics to determine the most effective drug combinations.

Justin also volunteers at a UC Davis student-run clinic, Clínica Tepati, where he helps provide medical care to underserved Latino communities in the greater Sacramento area. In his free time, Justin enjoys reading, cooking, and practicing Brazilian Jiu-Jitsu.

Ruth Abebe

Undergraduate Researcher

Ruth receives her Bachelor of  Science in Global Disease Biology in 2022. She began her journey in the lab by working on a Latino GC TWAS Candidate Functional Validation Study for her practicum project. She then joined the team as a research assistant and is currently working on identifying RHOA synthetic lethal interaction in a specific cell line, in hopes of finding therapeutic methods that expand inclusion and help bridge the gap of healthcare disparities. 
Ruth plans on pursuing her interest in research for several years while exploring graduate study programs as the next step in her journey. In her spare time, Ruth enjoys spending time with her family and friends. She enjoys cooking, traveling, creating art by painting and sketching, and cosmetology work such as hair, and nails.

Caitlin Leong

Undergraduate Researcher

Caitlin is a third-year undergrad pursuing a degree in psychology. She volunteers at Health Education & Promotion and serves as an editor at Open Ceilings magazine. In the future, she hopes to pursue physician assistant school and write a novel. After a summer spent interning at an optometrist clinic, she’s continuing her 2022-2023 year with the bioinformatics team at the LCC lab!

Yessy Vega

Undergraduate Researcher

Yessy is an undergraduate student at UC Davis who is majoring in Biological Sciences. She is a CURE scholar and is currently working on identifying RHOA synthetic lethal interactions in genomically stable gastric cancer and finding therapeutics to effectively treat this molecular subtype. 

Yessy has worked as a certified medical assistant for several years and will pursue medical school where she hopes to combine her research and clinical experiences to treat and care for underserved communities. In her free time, Yessy enjoys spending time with her family and dogs, doing CrossFit, gardening, and caring for her backyard chickens. She hopes to have a farm of her own one day. 

Michelle Wong

Undergraduate Researcher

Michelle recently started in the Bioinformatics group. 

Adrian Quiroz

Undergraduate Researcher

Adrian is an undergraduate pursuing a Bachelor of Science in Biological Sciences. After graduation, he plans to stick around the Davis area working at the Carvajal-Carmona lab and other genomics-based labs at UC Davis. In the future, Adrian plans on continuing to conduct research in the genomics field and would eventually like to pursue a bioinformatics career in the biotech industry.

Adrian also volunteers at a wildlife rehabilitation center, International Bird Rescue, where he provides care for many avian patients at the clinic. In his spare time, Adrian enjoys playing video games, reading, and cooking. 

Swati Pothukuchi

Undergraduate Researcher

Adrian recently started in the Bioinformatics group. 




Javier Torres

Unidad de Investigación en Enfermedades Infecciosas y Parasitarias, IMSS


Alejandro Corvalán
Patricio González
Pilar Carvallo

Past Members

Paari Kandappan – Undergraduate Research Assistant
Dylan Hampton – Undergraduate Research Assistant
Natalia Belter – Associate Research Specialist
John Williamson – Graduate Researcher
Erika Estrada – Undergraduate Research Assistant
Tavneet Gill – Undergraduate Research Assistant
Cathy Wang – Undergraduate Research Assistant
Elisha Garcia – Associate Research Specialist
Anna Marie Tuazon – Graduate Researcher
Jacob Stultz – Associate Research Specialist
Ivan Olaya – Undergraduate Research Assistant
Chad Pickering – Undergraduate Research Assistant
Ruta Sahasrabudhe – Postdoctoral Scholar
Neha Mannikar – Undergraduate Research Assistant
Nicole Coggins – Graduate Researcher
Angel Criollo – Visiting Graduate Researcher
Crystel Ramirez – Visiting Graduate Researcher
Sabrina Baggett – Junior Specialist Researcher
Ran Lu – Junior Specialist Researcher
Michael Nyugen – Undergraduate Researcher – Web/Database Developement
Peter Kim – Undergraduate Researcher – Web/Database/Bioinformatics
Giselle Aguayo – Junior Specialist Researcher
Sienna Rocha – Undergraduate Researcher
Marisol Contreras – Undergraduate Researcher
John Jairo Suarez Olaya – Visiting Graduate Researcher
Jennyfer Dahianna Benavides – Visiting Graduate Researcher
Graciela Molina – Visiting Postdoctoral Researcher
Ted Toal – Assistant Project Scientist – Bioinformatics
Elizabeth Quino – Assistant Research Specialist
Priya Choudhary – Junior Specialist Researcher- Bioinformatics
Rasika Venkatesh – Junior Specialist Researcher- Bioinformatics
Alexa Morales Arana – Junior Specialist Researcher