Directory

Image of Justin W. Taraska
Justin W. Taraska Jane Coffin Childs Fellow

University of Washington

Appointed in 2005

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Imaging dynamics in CNG ion channels

Image of Andrew Taussig
Andrew Taussig Jane Coffin Childs Fellow

McGill-Montreal General Hospital Research Institute

Appointed in 1961

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Tumour viruses

Image of C.P.S. Taylor
C.P.S. Taylor Jane Coffin Childs Fellow

University of Cambridge, England

Appointed in 1960

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Mechanism of action of the hemoprotein enzymes

Image of John M. Taylor
John M. Taylor Jane Coffin Childs Fellow

Stanford University

Appointed in 1972

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Characterization of polyribosome-membrane interaction

Image of Kenneth A. Taylor
Kenneth A. Taylor Jane Coffin Childs Fellow

MRC Center, University Medical School, England

Appointed in 1976

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Structure of vertebrate striated muscle

Image of John L. Teem
John L. Teem Jane Coffin Childs Fellow

Whitehead Institute for Biomedical Research

Appointed in 1983

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Transport of ribosomal proteins to the yeast nucleus

Image of Gary F. Temple
Gary F. Temple Jane Coffin Childs Fellow

Massachusetts Institute of Technology

Appointed in 1972

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Control of differentiation and development in eukaryotes

Image of Mabel Tettey, Ph.D.
Mabel Tettey, Ph.D. Jane Coffin Childs Fellow

National Institute of Allergy and Infectious Diseases

Appointed in 2023

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Sexual recombination and virulence in the success of African trypanosomes

In disease-causing organisms, hybridization allows for the transfer of traits such as virulence and drug resistance. Dr. Mabel Tettey will investigate how hybridization impacts African trypanosomiasis outbreaks caused by the parasite Trypanosoma brucei. Dr. Tettey will assess the degree of hybridization occurring in African trypanosome endemic areas, explore the impact of hybridization on virulence, and identify the key molecules involved in this process. She will conduct these experiments in Dr. Michael Grigg’s lab at the National Institute of Allergy and Infectious Diseases. These studies may enable the development of effective disease control strategies against African trypanosomes.

As a graduate student in Dr. Keith Matthews’ lab at the University of Edinburgh, Tettey examined the function of released peptidases in the transmission of African trypanosomes. Specifically, Dr. Tettey identified the genes that dominate quorum sensing signal in African trypanosomes. With her extensive background in trypanosome biology, Dr. Tettey will now examine the role of hybridization in trypanosome virulence.

Image of Sheila Teves
Sheila Teves Jane Coffin Childs Fellow

University of California, Berkeley

Appointed in 2014

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Bookmarking the chromosomes and its role in cellular memory

Cellular memory can be defined as the ability of a cell to transmit all its identifying functions to daughter cells during cell division. This ability to ‘remember’ identity is crucial to the development of multicellular organisms, as evidenced when cells lose their identity and degenerate or become cancerous. Conversely, our ability to alter cell state, such as the generation of induced pluripotent stem (iPS) cells from differentiated cells, has become a promising therapeutic tool. Therefore, understanding how cells establish, maintain, and change identity will further our understanding of processes central to cellular development, disease progression, and therapy production. One mechanism for cellular memory is the ability to re-establish the transcriptional program following mitosis, which may function through bookmarking, the process of DNA-binding factors marking genes on condensed mitotic chromosomes to facilitate gene expression following mitosis. The main objective of this proposal is to analyze the mechanisms of bookmarking. I outline three independent approaches to characterize quantitatively the mechanisms of bookmarking. Using these approaches, I will test the hypothesis that histone variants and pluripotency factors function as bookmarkers to maintain the stem cell state. Lastly, I will perform an unbiased screen to identify putative bookmarking factors specific to embryonic stem cells.

Image of Marla  Tharp, Ph.D.
Marla Tharp, Ph.D. Jane Coffin Childs - HHMI Fellow

Whitehead Institute for Biomedical Research

Appointed in 2021

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Sex differences in glioblastoma: a microglia perspective

Cancer affects men and women differently. For example, glioblastoma, the most aggressive form of brain cancer, has a male-biased incidence rate and poorer response to standard treatments in men versus women. My research investigates the genetic and molecular basis of sex differences in glioblastoma from the perspective of microglia, the resident immune cells of the brain. Microglia are a major player in the brain tumor microenvironment and promote tumor growth and metastasis. Using XX and XY human microglia isolated from healthy brain regions and brain tumors, I am identifying sex-biased genes and biological pathways that are responsible for establishing sexually dimorphic brain tumor microenvironments. Further, I am testing how possessing an XX or XY sex chromosome complement drives the observed genome-wide sex-biased gene expression patterns in microglia, in particular, through X-linked genes that aberrantly escape X chromosome inactivation or homologous X-Y gene pairs with imbalanced expression or function. I anticipate that my research will lay the groundwork for more effective and sex-specific treatments for glioblastoma.

Image of Helen P. Thompson
Helen P. Thompson Jane Coffin Childs Fellow

Rockefeller University

Appointed in 1948

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Electron microscopic study of the mammary tumer inciter

Image of Lynnmarie K. Thompson
Lynnmarie K. Thompson Jane Coffin Childs Fellow

Massachusetts Institute of Technology

Appointed in 1989

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Solild state NMR studies of bacteriorhodopsin

Image of Catherine C. Thompson
Catherine C. Thompson Jane Coffin Childs Fellow

Carnegie Institute for Science

Appointed in 1990

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Mechanism of cell-specific transcriptional activation

Image of Jeremy W. Thorner
Jeremy W. Thorner Jane Coffin Childs Fellow

Stanford University

Appointed in 1972

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DNA Polymerase

Image of Clark J.B. Tibbetts
Clark J.B. Tibbetts Jane Coffin Childs Fellow

University of Uppsala, Sweden

Appointed in 1972

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Genome structure of adenovirus

Image of David C. Tiemeier
David C. Tiemeier Jane Coffin Childs Fellow

National Institutes of Health

Appointed in 1973

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Transcription control of globin synthesis

Image of Alisa C. Tietz
Alisa C. Tietz Jane Coffin Childs Fellow

New York University

Appointed in 1956

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Metabolism of propionic acid in animal tissure

Image of David P. Toczyski
David P. Toczyski Jane Coffin Childs Fellow

University of Washington

Appointed in 1993

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Mating partner selection in yeast

Image of Joanne Topol
Joanne Topol Jane Coffin Childs Fellow

California Institute of Technology

Appointed in 1990

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RNA and protein localization in the Drosophila egg

Image of Margaret Torrence, Ph.D.
Margaret Torrence, Ph.D. Jane Coffin Childs Fellow

Massachusetts Institute of Technology

Appointed in 2022

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Deciphering cell-specific metabolic changes in PDAC

Pancreatic cancer represents 3% of all new cancer cases in the United States, yet it has the worst 5-year survival rate of all cancer types. While many cancer types display durable responses to cancer immunotherapy, which harnesses the cytotoxic activity of the immune system to treat malignancies, immunotherapy has largely failed to treat pancreatic ductal adenocarcinoma (PDAC). The complex tumor microenvironment of PDAC likely underlies the refractory response of PDAC to immunotherapy, including immune checkpoint blockade (ICB). One example of a known mechanism that aids immune evasion by PDAC is the presence of desmoplastic stroma that hinders the infiltration of cytotoxic T cells. In addition to exclusion of immune infiltrate, the cytotoxic T cells that are present within the microenvironment are dysfunctional. Nutrient availability within the tumor environment likely impacts the function of cytotoxic T cells and research in immunometabolism is of growing interest. Understanding cell-specific metabolic changes within GEMMs has been hindered by a lack of mouse models that properly recapitulate the tumor microenvironment and lack of tools able to properly isolate cells in a way that preserves the integrity of the metabolites. My project will use a GEMM of PDAC, congenic markers, and cancer cell-specific surface tags in order to rapidly purify and perform metabolomics of both cancer cells and T-cells. Using this technique, I hope to identify metabolic pathways that are hindering immune cell proliferation and cytotoxic capabilities to reinvigorate the immune microenvironment for tumor control and in response to ICB.

Image of Daniel E. Tracey
Daniel E. Tracey Jane Coffin Childs Fellow

Karolinska Institutet, Stockholm

Appointed in 1973

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Role of antigen binding receptor onlumphocytes in intolerance and immunity

Image of Robert R. Traut
Robert R. Traut Jane Coffin Childs Fellow

University Medical School, England

Appointed in 1962

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Biochemistry of cells as controlled by genetic units

Image of Tatjana Trcek-Pulisic
Tatjana Trcek-Pulisic Jane Coffin Childs - HHMI Fellow

New York University

Appointed in 2012

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mRNA stability during Drosophila germline

Image of Jessica E. Treisman
Jessica E. Treisman Jane Coffin Childs Fellow

University of California, Berkeley

Appointed in 1991

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Targets of glas in the Drosophila eye disc

Image of John J. Trentin
John J. Trentin Jane Coffin Childs Fellow

Yale University

Appointed in 1948

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Endocrine aspects of mammary gland growth and function

Image of E. Sergio Trombetta
E. Sergio Trombetta Jane Coffin Childs Fellow

Yale University

Appointed in 1995

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Role of lectins in glycoprotein

Image of Eirini D. Trompouki
Eirini D. Trompouki Jane Coffin Childs Fellow

Boston Children's Hospital

Appointed in 2007

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The role of prostaglandins and Wnt signaling on hemopoietic stem cell renewal

Image of Ian S. Trowbridge
Ian S. Trowbridge Jane Coffin Childs Fellow

Salk Institute for Biological Studies

Appointed in 1972

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Cell differentiation

Image of Heather L. True-Krob
Heather L. True-Krob Jane Coffin Childs Fellow

University of Chicago

Appointed in 1998

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Effect of [PSI+] on gene expression

Image of Patricia A. Trumper
Patricia A. Trumper Jane Coffin Childs Fellow

Sidney Farber Cancer Center

Appointed in 1977

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Early antigen complex of EB virus

Image of Nancy J. Trun
Nancy J. Trun Jane Coffin Childs Fellow

National Cancer Institute

Appointed in 1988

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Bacterial cell cycle

Image of Benes L. Trus
Benes L. Trus Jane Coffin Childs Fellow

California Institute of Technology

Appointed in 1972

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Protein structure

Image of Kaloyan Tsanov
Kaloyan Tsanov Jane Coffin Childs Fellow

Memorial Sloan-Kettering Cancer Center

Appointed in 2018

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The role of ribosomal protein gene deletions in liver cancer

Hemizygous deletions of ribosomal protein genes (RPGs) are recurrently found across human cancers, yet their role in tumorigenesis is poorly understood. Here, I propose to systematically investigate the function of RPG hemizygosity in cancer, using hepatocellular carcinoma (HCC) as a model, by exploring two specific hypotheses. First, based on genomic data from HCC and other tumors, and emerging biochemical evidence for mRNA-specific translational control by individual RPs, I hypothesize that RPGs act as haploinsufficient tumor suppressor genes by selectively altering the translation of oncogenic and/or tumor-suppressive mRNAs. I will assess the contribution of RPG hemizygosity to tumor initiation, progression and maintenance, and analyze its impact on mRNA translation. Second, given that RPG deletions are almost invariably hemizygous and strongly associate with loss of the p53 tumor suppressor gene, I hypothesize that RPG hemizygosity renders cancer cells more vulnerable to perturbations of ribosome homeostasis. I will examine the effects of p53 restoration and further RPG depletion in RPG­ hemizygous cells, and perform a ribosome homeostasis-focused screen for RPG hemizygosity-specific tumor dependencies. Together, the proposed studies may provide an explanation for the striking patterns of RPG loss in human cancer, with potential broad implications for both fundamental biology and cancer treatment.

Image of Claire C. Tseng
Claire C. Tseng Jane Coffin Childs Fellow

Whitehead Institute for Biomedical Research

Appointed in 2004

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Quorum sensing in fungi

Image of Shih-Yi Tseng, M.D., Ph.D.
Shih-Yi Tseng, M.D., Ph.D. HHMI-Jane Coffin Childs Fellow

University of California, San Francisco

Appointed in 2025

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Dynamic interactions of hippocampal-prefrontal circuits for flexible behavior

Dr. Shih-Yi Tseng is interested in how the brain coordinates the many functions we use to navigate our way through the world. During her Ph.D. research she studied a large population of neurons to illustrate that neural coding enables these functions and is distributed throughout the cortex. In her fellowship, Tseng will now decipher how two areas of the brain work together to enable the flexible behavior required for navigation.

Tseng’s thesis research in Dr. Christopher Harvey’s lab at Harvard University examined the functional organization of the cortex in supporting sensing, planning, and action to navigate towards a goal location in dynamically changing environments. By tracking the activity of 90,000 brain cells in mice, Tseng found that information about tasks and behavior is spread out across the cortex. Her work suggests that this part of the brain possesses a vast capacity to integrate complex features of behavior and surroundings to guide decisions.

In Dr. Loren Frank’s lab at UC San Francisco, Tseng will now investigate the dynamic interactions between the hippocampus (HPC) and prefrontal cortex (PFC) to enable flexible behavior. The HPC is important for learning and memory, whereas the PFC is crucial for decision-making. These regions need to coordinate during tasks such as navigation, yet how such coordination occurs is not known. Tseng will use multi-area electrophysiology, optogenetic manipulations, and computational methods to determine the HPC-PFC interactions needed for flexible behavior, and to evaluate how their coupling enables these regions to perform their individual functions. This research will provide fundamental insights into HPC-PFC coupling and may reveal ways in which this process goes awry in neuropsychiatric disorders.

Image of Christopher A. Tsu
Christopher A. Tsu Jane Coffin Childs Fellow

University of Colorado, Boulder

Appointed in 1995

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Enzymology of the DEAD family of RNA dependent ATPases

Image of Rocky S. Tuan
Rocky S. Tuan Jane Coffin Childs Fellow

Massachusetts General Hospital

Appointed in 1977

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Vitamin K in normal and neoplastic bone formation

Image of Gregory E. Tullis
Gregory E. Tullis Jane Coffin Childs Fellow

Princeton University

Appointed in 1993

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Molecular interactions of YY1

Image of Jonathan Tullis, Ph.D.
Jonathan Tullis, Ph.D. Jane Coffin Childs Fellow

Oregon Health and Science University

Appointed in 2024

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Mechanisms of Type I PARP1 Inhibitors in Regulating Cell Fate Decisions in Cancer

Poly ADP-ribose polymerase 1 (PARP1) is a protein involved in the DNA damage response and an important drug target against many cancers. There are a number of PARP1 inhibitors, but current drugs targeting PARP1 can have limited therapeutic potential due to cancer cells frequently acquiring resistance to these drugs.

Dr. Jonathan Tullis aims to understand the mechanistic details of a class of PARP1 inhibitors in Dr. Michael Cohen’s lab at Oregon Health and Science University. PARP1 inhibitors are thought to function by inhibiting the enzymatic activity of this protein. However, “type I” inhibitors exhibit an additional feature – they lock PARP1 onto sites of DNA damage. Dr. Tullis will use mechanistic studies to tease apart the relative importance of these two features – enzymatic inhibition vs locking PARP1 onto DNA – for therapeutic efficacy. These detailed studies promise to reveal novel information about PARP1 biology and may pave the path for more effective PARP1 drugs in the future.

Tullis’ passion for mechanistic studies dissecting protein function stem from his graduate research in Dr. Ulli Bayer’s lab at the University of Colorado. His Ph.D. focused on a protein kinase, CaMKII, that is crucial for long-term potentiation, a fundamental process in learning and memory. It was thought that CaMKII’s kinase activity was required for long-term potentiation. Using careful biochemical and chemical biological approaches, Tullis convincingly demonstrated that it is actually a structural role of CaMKII that is required for inducing long-term potentiation and its enzymatic activity was only required to enable that role. Next, Tullis will leverage his expertise in mechanistic studies to tease apart the important functions of PARP1 inhibitors during his postdoctoral research so that more efficacious targets against cancer cells can be developed.

Image of Glenn C. Turner
Glenn C. Turner Jane Coffin Childs Fellow

California Institute of Technology

Appointed in 2002

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cAMP and sensory representations in the mushroom body

Image of Gregory E. Turnick
Gregory E. Turnick Jane Coffin Childs Fellow

Cornell University

Appointed in 1966

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Ribosome synthesis

Image of Geoffrey Turnock
Geoffrey Turnock Jane Coffin Childs Fellow

Cornell University

Appointed in 1966

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Work on ribosome synthesis

Image of Claudia Turro
Claudia Turro Jane Coffin Childs Fellow

Columbia University

Appointed in 1992

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Time-resolved binding studies of Ru complexes to DNA

Image of Jonathan M. Tyler
Jonathan M. Tyler Jane Coffin Childs Fellow

University of Alberta, Canada

Appointed in 1980

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Molecular basis of DNA repair

Image of Jayant B. Udgaonkar
Jayant B. Udgaonkar Jane Coffin Childs Fellow

Stanford University

Appointed in 1986

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Mechanism of folding of RNase studies by 2-D NMR

Image of Jay N. Umbreit
Jay N. Umbreit Jane Coffin Childs Fellow

Johns Hopkins University

Appointed in 1972

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Intercellular adhesion

Image of Elçin Unal
Elçin Unal Jane Coffin Childs - HHMI Fellow

Massachusetts Institute of Technology

Appointed in 2008

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Deciphering the age effects on meiosis and vice versa

Image of Jay C. Unkeless
Jay C. Unkeless Jane Coffin Childs Fellow

Massachusetts Institute of Technology

Appointed in 1974

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Role of proteases of macrophages and lymphocytes in immunological reaction

Image of Wilfred A. Van der Donk
Wilfred A. Van der Donk Jane Coffin Childs Fellow

Massachusetts Institute of Technology

Appointed in 1994

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Mechanistic investigation of ribonucleotide reductases

Image of Susan S. Van Rheenen
Susan S. Van Rheenen Jane Coffin Childs Fellow

Tufts University School of Medicine

Appointed in 2000

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Intracellular multiplication of legionella

Image of Petra Vande Zande, Ph.D.
Petra Vande Zande, Ph.D. Jane Coffin Childs Fellow

University of Minnesota

Appointed in 2023

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Effects of regulatory network divergence on drug resistance in Candida

The human pathogen Candida albicans’ genome varies substantially between clinical isolates, yet it is currently unknown how this variation affects infection. Since many genetic variants are located in gene regulatory sequences, Dr. Petra Vande Zande predicts that there is substantial divergence in gene-regulatory networks between different C. albicans isolates that modifies their fitness. Dr. Vande Zande will use gene expression data from different isolates to model gene regulatory networks and identify key differences that impact fitness. Vande Zande will conduct these experiments in Dr. Anna Selmecki’s lab at the University of Minnesota. This research will provide direct insight into genetic differences that impact C. albicans infections. It may also provide clues into other genetically diverse systems with differences in gene-regulatory networks, including human cancers.

As a graduate student in Dr. Patricia Wittkopp’s lab at the University of Michigan, Vande Zande studied gene expression in the context of adaptive evolution. In particular, Dr. Vande Zande discovered that mutations affecting a gene’s expression from a distance are more pleiotropic and more detrimental to fitness than mutations occurring proximally to the gene of interest. With her experience in the evolution of gene expression, Dr. Vande Zande is now interested in understanding divergence in gene-regulatory networks between different clinical isolates of yeast infections.