Lab Members

Principal Investigator
Marcia Haigis, PhD

Department of Cell Biology
Harvard Medical School
LHRRB Room 301A
240 Longwood Avenue
Boston, MA 02115

Phone: 617-432-6865
Fax: 617-432-6932

Marcia C. Haigis, Ph.D., is a Professor in the Department of Cell Biology at Harvard Medical School in Boston, MA,  a member of the Paul F. Glenn Center for the Biology of Aging, and the Ludwig  Center at Harvard Medical School. Following graduate training in Biochemistry at the University of Wisconsin-Madison in Biochemistry, Dr. Haigis studied mitochondrial metabolism during her postdoctoral research at MIT. She has contributed to understanding the role that mitochondrial sirtuins play in metabolism and disease. She has received a number of honors, including the Ellison Medical Foundation New Scholar Award, the Brookdale Foundation Leadership in Aging Award, and selection for the National Academy of Medicine's Emerging Leaders in Health and Medicine Program. 

Lab Manager
Shakchhi Joshi
Shakchhi Joshi

Shakchhi graduated from Creighton University with a bachelor’s degree in neuroscience and psychology. As the lab manager, she is responsible for most administrative duties along with running and maintaining the lab's mass spectrometers  

Known Aliases: Joshi, Shakichi, Shakcchi, Shakchii, Sha, Shakira

Postdoctoral Fellows
Brandon Gassaway

Brandon is a co-mentored post-doc between the Haigis and Gygi labs. As an undergrad at BYU, Brandon worked with Emily Bates studying the role of inwardly rectifying potassium channels in Drosphila development. He did his Ph.D at Yale with Jesse Rinehart, studying mechanisms of insulin resistance by phosphoproteomic analysis. He is currently interested in developing methods to functionalize protein phosphorylation.

Fun Fact: As an undergrad, Brandon also performed with the International Folk Dance Ensemble. 

Kiran Kurmi, PhD

Kiran completed his Ph.D at Mayo Clinic in the lab of Taro Hitosugi, studying how oncogenic signals modulate mitochondrial metabolism. Kiran's current work focuses on areas of immunometabolism, primarily investigating various cell-intrinsic metabolic processes that can influence the performance of immune cell function with the goal of exploiting these alterations for clinical intervention. Kiran is a Gilead Sciences fellow of the Life Sciences Research Foundation

Favorite food: chicken chihuahua from Taco Bell


Alison Ringel, PhD

Alison is interested in studying the connection between metabolism and mitochondrial stress responses, with a focus on mitochondrial proteotoxicity. Her work is supported by a postdoctoral fellowship from the American Cancer Society.

Jaime Schneider, MD/PhD

Jaime was born and raised in Florida, completed her undergraduate degree in Biochemistry at Northwestern University, and her MD and PhD degrees at Albert Einstein College of Medicine. After training in internal medicine at MGH, she matriculated into the hematology/oncology fellowship program at DFCI and is particularly interested in thoracic oncology. She joined the Haigis lab to study mechanisms of metabolic and proteostasis dysregulation in cancer and the interplay between oncogenesis and aging. 

Spirit animal: The Dachshund 

Conghui Yao, PhD

Conghui completed her PhD at Washington University in St. Louis, where she worked on LC/MS based metabolomics of cancer cells. In her postdoc, Conghui is interested in studying how immune cell functions are comprised in the tumor microenvironment.

Interested in but not good at: basketball 

Haejin Yoon, PhD

Haejin completed her Ph.D research at Seoul National University Medical School, where she studied hypoxia signaling pathway in cancer and healthy bone. She is currently researching the molecular mechanisms that cancer-associated metabolic enzymes regulate, fatty acid oxidation and nutrient-dependent signaling pathways. She is also interested in sirtuin-driven pathological conditions and the role of sirtuin in adipose. Her work is supported by the American Diabetes Association.

Spends most of her money on: Uber rides between lab and home (total distance: 0.5 miles)

Graduate Students
Roberta Colapietro

Roberta was raised in a seaside town in southern Italy, but ended up studying medicine in one of the foggiest cities of northern Italy (Pavia). As an Armenise-Harvard Summer Fellow, she works with Jaime on a project about metabolic rewiring in resistant lung cancer.

“Fun” fact: She lives 1 hour away from the lab because she kept mistaking Harvard Campus with Harvard Medical School while searching for houses on Google Maps

Sheila Johnson

Sheila received her B.S. in Biochemistry from University of Wisconsin-Madison. Her undergraduate research in the lab of Dave Pagliarini was focused on identifying enzymes and precursors involved in coenzyme Q biosynthesis. She is currently interested in exploring how alterations in T cell metabolism improve antitumor immunity. 

Favorite show: Avatar: The Last Airbender

Liam Kelley

Liam did his undergraduate research in the laboratory of Bryan Ballif at University of Vermont, where he studied blood group systems. He is currently researching the interaction between tumor metabolism and urea cycle dysfunction in the context of hepatocellular carcinoma. In addition, he is interested in studying the contributions of proteomic changes to cancer metabolism.

Hobbies: Editing Wikipedia
Favorite protein: SrcASM

Giulia Notarangelo

Giulia completed her undergraduate studies at Mount Holyoke College. After graduating, she spent two years at the NIH in the lab of Michael Lenardo, working on understanding the molecular mechanisms that control cellular responses, and how defects in such responses may lead to diseases of the immune system. She is currently interested in characterizing tumor-immune metabolic interactions in the tumor microenvironment. Her work is supported by the National Science Foundation Graduate Research Fellowship.

Most likely to: appear on the next season of the Bachelor.

Sarah Tucker

Sarah completed her undergraduate studies at the University of Illinois Urbana-Champaign. Her undergraduate research in the laboratory of Martin Burke was focused on synthesizing less toxic derivatives of antifungal natural products. She is currently interested in understanding mitochondrial sirtuin activity and substrate specificity in the context of metabolic diseases. Her work is supported by a fellowship from Joslin Diabetes Center.

Favorite alpaca name: Alpacino
Hobbies: Telling people no

Erick Vazquez Cano
Erick Vazquez Cano

Originally from Mexico, Erick is now a student in the Chemical Biology Ph.D. program at Harvard. Departing from an analytical chemistry background and a broad interest in cellular metabolism and human disease, Erick’s efforts are currently focused in dissecting the biological and chemical features of different oncometabolites. His studies are generously funded by Fundación Mexico en Harvard and Mexico’s National Council for Science and Technology (CONACyT).  

Happy Place: Lamont Library at Harvard Yard. Proudly, a Lamonster.

Samantha Wong

Sam received her BS in biomedical science at Imperial College London, studying infectious diseases. She then worked as a technician for a year in Bruno Reversade's laboratory before ending up at HMS. Her current work examines the enzymology of prolyl hydroxylase 3 and its role in lipid metabolism. Her studies are supported by the National Science Scholarship (PhD) from the Agency for Science, Technology and Research (A*STAR) from Singapore.

Life slapped her in the face when: She wanted to become a pilot but was denied because of her height. Getting a PhD was her back-up plan.

Research Assistants
Olivia Dickert

Olivia graduated with a BA in Biology with a Minor in chemistry. As a research assistant, she assists multiple postdocs in their research, as well as other administrative duties.

Favorite Food: Chicken Parm on a fresh baguette (the more sauce the better!!)

Undergraduate Students
Stacy Mulei

Stacy is pursuing her BS in Biology from the University of Massachusetts Boston. She got her AS in Psychology from Middlesex Community College. As a research assistant, one of her primary roles is managing mice colonies and participating in mouse model experiments under the guidance of Dr. Elma Zaganjor. 

Was the inspiration for: Storm from Marvel (also originally from Kenya but raised in Harlem)