Cell Biology Faculty

Yashi Ahmed, M.D., Ph.D.

Yashi Ahmed, Ph.D.

Yash Ahmed, Ph.D.

Professor of Molecular and Systems Biology

Office: 613 Vail

Phone: 603-646-5240

The evolutionarily conserved Wnt signal transduction pathway directs cell proliferation and differentiation during animal development and tissue homeostasis. Despite the fact that deregulation of Wnt signaling underlies numerous developmental disorders and cancers, including nearly all colorectal cancers, many of these mechanisms remain poorly understood. The long-term goal of research in the Ahmed Lab is to elucidate the mechanisms that activate Wnt signaling during animal development using a Drosophila model and to use this knowledge to identify control points in the pathway susceptible to therapeutic targeting in Wnt-driven diseases.

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AMANDA A. AMODEO, Ph.D.

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Amanda Amodeo

Assistant Professor of Biological Sciences

Office:  223 Life Sciences Center

Phone:  603-646-9926

My lab seeks to uncover how cell size, zygotic genome activation, chromatin regulation, and the cell cycle come together to regulate early development in the Drosophila embryo. We use a combination of quantitative imaging, cell biology, genetics, genomics, biochemistry, and mathematical modeling to answer questions about how cells sense fundamental biological properties such as their size and developmental stage.

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Charles K. Barlowe, Ph.D.

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Charles Barlowe

James C. Chilcott 1920 Professor and Chair of Biochemistry and Cell Biology

Office: 414 Remsen

Phone: 603-646-5180

My research group investigates intracellular trafficking and we seek to understand the molecular mechanisms that control protein transport and quality control in the early secretory pathway. We use a multidisciplinary approach that includes biochemistry, molecular genetics, proteomics and microscopy in model systems.

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Magdalena Bezanilla, Ph.D.

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Magdalena Bezanilla

Ernest Everett Just 1907 Professor of Biological Sciences

Office: LSC 231

Phone: 603-646-2314


My research aims to understand how molecules within cells impart geometric information ultimately leading to cell shape determination. Research in my lab seeks to identify molecules within the cell that control cellular patterning. We are particularly interested in the role of regulators of the cytoskeleton and membrane trafficking and have pioneered the use of the moss Physcomitrella patens. Using the unusually rapid transgenic capabilities of moss, we are pursuing novel approaches to dissect the molecular mechanisms underlying plant cell shape.

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Sharon E. Bickel, Ph.D.

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Sharon Bickel

Professor of Biological Sciences

Office: 237 Life Sciences Center

Phone: 603-646-0245


Chromosome segregation errors in human oocytes are the leading cause of miscarriages and birth defects and their frequency increases dramatically as women age. Work in my laboratory is focused on defining the pathway of events necessary for chromosomes to "do the right thing"" during meiosis and understanding the molecular events that cause reduced fidelity of meiotic chromosome segregation as oocytes age.

No longer accepting new thesis students.

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Jennifer Bomberger, Ph.D.

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Bomberger

Professor of Microbiology and Immunology

Geisel School of Medicine

Office:  507A Vail

Phone:  

My laboratory's research examines the interaction between bacterial and viral pathogens in the respiratory tract, particularly in the setting of chronic lung diseases, like Cystic Fibrosis (CF). Current studies in the lab are focused on elucidating molecular mechanisms that govern the innate immune induction of biofilm growth in the lung. Translating the laboratory's bench studies to the bedside, our team collaborates with physicians in Otolaryngology and Pulmonary Medicine to examine viral-bacterial interactions in the upper and lower respiratory tracts of patients with chronic lung disease. We use a combination of live-cell imaging, microbiological, cell biological and cutting-edge genomics approaches with the long-term goal of identifying new therapeutic targets to disrupt and/or prevent the chronic Pseudomonas aeruginosa biofilm infections that are so devastating to people with CF.

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Giovanni Bosco, Ph.D.

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Giovanni Bosco

Oscar M. Cohn Professor of Molecular and Systems Biology

Office: 609A Vail

Phone: 603-646-5241

We are interested in understanding how nuclear architecture, chromosome morphology and chromatin structure are modified in response to developmental cues and environmental factors. We are also interested in elucidating the molecular mechanisms through which these modifications function and effect specialized cellular processes.


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TY Chang, Ph.D.

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    Chang TY
  • Professor of Biochemistry and Cell Biology
  • Office: 304 Vail
  • Phone: 603-650-1622

  • TAcyl-coenzyme A: cholesterol acyltransferase (ACAT) is a membrane protein located in the endoplasmic reticulum. It catalyzes the formation of cholesteryl esters from cholesterol and long-chain fatty acyl-coenzyme A. Cholesteryl ester is the storage form of cholesterol. The first gene encoding the enzyme ACAT1 was identified in our laboratory. We have also purified this protein to homogeneity and characterized it biochemically. In many neurodegenerative diseases, the cholesterol-rich microdomains in the membranes of various cell types are disrupted. We have shown that in mouse models for Alzheimer's disease and for Niemann Pick type C disease, inactivating ACAT1 can divert the cholesterol storage pool, such that the "mobilized cholesterol" can repair the disrupted cholesterol-rich microdomains. Future investigations are directed to develop novel ACAT inhibitors to ameliorate Alzheimer's disease, Niemann-Pick type C disease, and atherosclerosis. We will also use biochemical and biophysical approaches to identify the active sites and regulatory sites in ACAT1 and to investigate the mechanistic consequence of inhibiting ACAT in macrophages, neurons, microglia, and astrocytes. 

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Michael D. Cole, Ph.D.

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Michael Cole

Professor of Molecular and Systems Biology

633 Rubin

Phone: 603-653-9975 


Our studies that focus on the genetic events involved in the induction of cancer provide an opportunity to define the molecular basis of the disease and to study the regulation and function of important eukaryotic genes that control cell proliferation.

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Duane A. Compton, Ph.D.

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Duane Compton

Professor of Biochemistry and Cell Biology

Dean of Geisel School of Medicine

Office: 650 Williamson Translational Research Building

Phone: 603-646-5190

We investigate the mechanisms that regulate accurate chromosome segregation in human cells and the causes of chromosomal instability in tumors.


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Patrick J. Dolph, Ph.D.

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Patrick Dolph

Associate Professor of Biological Sciences

Office: 351 Life Sciences Center

Phone: 603-646-1092


Our laboratory utilizes Drosophila melanogaster as a model system to study retinal degeneration and molecular mechanisms of cell death.


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Jay C. Dunlap, Ph.D.

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Jay C. Dunlap

Nathan Smith Professor of Genetics, Professor of Molecular and Systems Biology, Professor of Biochemistry and Cell Biology

Office: 702 Remsen

Phone: 603-646-5247

Work in the Dunlap lab is directed towards understanding circadian biology, the means by which biological clocks operate, are reset by the environment, and control the metabolism of cells. More recently a second effort has nucleated around high throughput functional genomics of filamentous fungi including Neurospora and Aspergillus spp.

No longer accepting new thesis students.

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Scott A. Gerber, Ph.D.

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Scott Gerber

Kenneth E. and Carol L. Weg Distinguished Professor of Molecular and Systems Biology, and Professor of Biochemistry and Cell Biology, Associate Director of QBS Program

Office: 734 Rubin

Phone: 603-653-3679 


Research in the Gerber Lab is focused on developing and using modernproteomics methods to understand the mechanisms by which dysregulated mitotic kinases, such as Aurora kinase A, contribute to the onset and maintenance of cancers.

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Dipon Ghosh, Ph.D.

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Dipon Ghosh

Assistant Professor of Biological Sciences

Office: LSC 334

The Ghosh Lab is broadly interested in the molecular and cell biological processes that help animals navigate daily life. We leverage an integrative approach including molecular genetic, cell biological, and ecological analyses to understand how a relatively simple and experimentally accessible nematode roundworm Caenorhabditis elegans interacts with its environment. Through these efforts, we hope to discover generalizable principles of animal physiology and behavior.

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Erik E. Griffin, Ph.D.

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Erik Griffin

Associate Professor of Biological Sciences

Office: 348 Life Sciences Center

Phone: 603-646-8269


We are interested in understanding how protein concentration gradients are generated in the cytoplasm and contribute to cell fate specification during development. We combine live imaging, biochemical and genetic approaches to study a series of cytoplasmic protein gradients that help pattern the early C. elegans embryo. 


No longer accepting new thesis students.

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MATTHEW C. HAVRDA, Ph.D.

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Matthew Havrda

Associate Professor of Molecular and Systems Biology

Office:   751 Rubin

Phone:   603-653-9933

Dr. Havrda lab is interested in characterizing neurodegenerative and neoplastic disorders of the central nervous system. Work in the laboratory is focused on two main themes: The characterization of inflammasomes and pyroptotic processes impacting the health of the aging brain and the study of how the neuronal microenvironment impacts the initiation and progress of gliomas in adults and children.

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Bing He, Ph.D.

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Bing He

Associate Professor of Biological Sciences

Office: 350 Life Sciences Center

Phone: 603-646-2649 


I am interested in how complex tissue and organ structures arise from simple tissue primordia. Using an interdisciplinary approach combining genetics, cell biology, biophysics and mathematical modeling, we seek to understand how developmental patterning information controls individual cell shape changes and how they are integrated into stereotyped tissue-scale deformations.


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Henry N. Higgs, Ph.D.

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Henry Higgs

Professor of Biochemistry and Cell Biology, John La Porte Given Professor in Cytology

Office: 403 Vail

Phone: 603-646-5193

Mammalian cells use actin filaments in a huge number of ways, and we are trying to figure out how cells control when and where specific actin-based structures are made. We use a combination of cellular (live-cell microscopy, fluorescence microscopy, EM, cell-free assays) and biochemical (actin polymerization kinetics, analytical ultracentrifugation, structural analysis) in our research.


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Robert A. Hill Ph.D.

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Robert Hill

Assistant Professor of Biological Sciences

Office:  322 Life Sciences Center

Phone:  603-646-6428

We study the multicellular interactions between neurons and glia in the brain with a primary focus on the development, plasticity, and regeneration of myelinating oligodendrocytes. Techniques include high-resolution optical imaging in combination with molecular labels, genetic manipulation, and sensors of cellular physiology.

 

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Michael B. Hoppa, Ph.D.

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Michael Hoppa

Associate Professor of Biological Sciences, Co-Director of Integrative Neuroscience at Dartmouth Graduate Program

Office: 324 Life Sciences

Phone: 603-646-8850


We explore the molecular mechanisms that control ion channel localization, expression and function in primary neurons using quantitative optical approaches in combination with genetic and biochemical tools. 


 

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Dionna M. Kasper

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Kasper

Dionna M. Kasper, Ph.D.

Assistant Professor of Molecular and Systems Biology

Office:  706A Remsen

Phone:   603-646-5254

The Kasper lab investigates how vascular endothelial cells adopt alternate cell fates to become hematopoietic stem cells or lymphatic progenitors. We use a combination of live imaging, genetic and biochemical approaches, and high-throughput 'omic' technologies in the zebrafish embryo to dissect how epigenetic to posttranslational gene regulatory mechanisms control these important developmental decisions.

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Arminja N. Kettenbach, Ph.D.

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Arminja Kettenbach

Professor of Biochemistry and Cell Biology

Office: 763 Rubin


Phone: 603-653-9067 


Research in the lab focuses on understanding the molecular mechanisms by which phosphatases contribute to phosphorylation-dependent signal transduction in mitosis. We use cell biological, biochemical, and proteomics approaches to decipher the connectivity and complexity of these signaling events in normal and cancer cells. 


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Soni Lacefield, Ph.D.

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Soni Lacefield, Ph.D.

Professor of Biochemistry and Cell Biology

Office:    413 Remsen

Phone:    603/646-5896

My research group investigates meiotic cell cycle regulation and chromosome segregation in budding yeast and mouse oogenesis. Our goal is to understand how checkpoint mechanisms monitor cell cycle events, how kinetochores attach to microtubules, and how both meiotic divisions are regulated to ensure faithful chromosome segregation. We use a combination of live cell imaging, cell biology, biochemistry, and genetics in our studies. 

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Steven D. Leach, M.D.

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Steven Leach

Director of Norris Cotton Cancer Center

Preston T. and Virginia R. Kelsey Distinguished Chair in Cancer

Professor of Molecular and Systems Biology

Office: DH, Rubin Building, Room 801

Phone: 603-653-3611 


The Leach lab studies pancreatic developmental, epithelial and tumor biology, using mouse, zebrafish and human model sytems. 


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Wei-Lih Lee, Ph.D.

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Wei-Lih Lee

Professor of Biological Sciences

Office: Class of 1978 Life Sciences Center, Room 224

Phone: 603-646-8706

I am interested in understanding how eukaryotic cells organize, position, and segregate their organelles during asymmetric cell divisions. We combine classical genetics and live-cell microscopy with biochemical and biophysical techniques to elucidate the molecular pathways that regulate the microtubule cytoskeleton and the motor proteins responsible for organellar interaction and positioning in our model system budding yeast.

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Jennifer J. Loros, Ph.D.

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Jennifer Loros

Professor of Biochemistry, and Molecular and Systems Biology

Office: 704 Remsen

Phone: 603-646-5247

Our laboratories are interested in the genetic and molecular dissection of circadian systems in eukaryotic cells with a research emphasis on the fungus Neurospora and mammalian tissue culture. The circadian system comprises the core molecular feedback loop, how this loop feeds information to the cell and organism and how input to the loop via temperature changes and photoreceptors is regulated.


No longer accepting new thesis students.

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Bryan W. Luikart, Ph.D.

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Bryan Luikart

Associate Professor of Molecular and Systems Biology

Office: 604 Vail

Phone: 603-646-5258

We are interested in how gene mutations that cause autism alter neuronal development and function. To study this we engineer viruses to perform in vivo genetic manipulations and employ electrophysiology and multi-photon microscopy to study the impact of genetic manipulations on neuronal function. 


 

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Dean R. Madden, Ph.D.

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Dean Madden

Professor of Biochemistry and Cell Biology

Dartmouth Vice Provost for Research

Office: 408A Vail

Phone: 603-646-5197

Structure and function of ion channels and proteins that regulate their intracellular trafficking.


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James B. Moseley, Ph.D.

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James Moseley

Professor of Biochemistry and Cell Biology

Office: 412 Remsen

Phone: 603-646-5202

Many cell types delay cell cycle transitions until they reach a critical size threshold. We are studying the cellular mechanisms that measure size, and their role in coordinating cell growth and division.

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Esteban A. Orellana, Ph.D.

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Esteban A. Orellana, Ph.D.

Assistant Professor, Molecular and Systems Biology

Office:  Remsen 725A

Phone:

Esteban investigates whether changes in the chemical modification (also known as the epitranscriptome) of RNA molecules play a role in the development of human cancers. In all cells, RNAs perform a variety of functions, including synthesizing proteins. While messenger RNAs (mRNAs) provide the instructions for producing a protein, transfer RNAs (tRNAs) "read" the information in that message and supply the necessary amino acid building blocks. To function properly, these transfer RNAs must fold into the correct three-dimensional shape, a process that requires the RNA to be chemically modified. Owing to their high cellular abundance and stability, tRNAs have been commonly considered to be housekeeping molecules. However, it is becoming increasingly clear that tRNAs are highly regulated, and that even small changes in their abundance or their nucleotide modification levels can have profound effects, leading to aberrant translation, changes in protein expression, and disease states. The tRNA epitranscriptome and the functional tRNA pool have emerged as important regulatory layers in the translation of the human genome. However, our current understanding of the functional tRNA pool is limited. Therefore, the focus of the Orellana Lab is to study the causes and effects of tRNA dysregulation in human disease and to use this knowledge to develop tRNA-based therapeutics and diagnosis.

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Benjamin D. Ross, Ph.D.

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ben ross

Assistant Professor of Microbiology and Immunology

Office:  504A Vail Building

Phone:  603-646-5388

The bacteria resident in the human gastrointestinal tract (the gut microbiota) potently influence diverse aspects of human health, including immunity. However, the forces that govern the composition of the gut microbiota are poorly understood. Our work focuses on a mechanistic, ecological, and evolutionary understanding of how interbacterial interactions between members of the dominant Gram-negative bacteria in the gut, the Bacteroidales, modulate the composition of the microbiota. The Bacteroidales utilize a contact-dependent toxin-delivery system known as the type VI secretion system (T6SS) to kill neighboring cells. We study the impact of this pathway on the microbiota and how bacteria adapt to defend against T6SS-mediated antagonism, using a combination of bacterial genetics, biochemistry, metagenomics, and germ-free mouse models. We are also interested in understanding why Bacteroidales abundance is depleted in individuals with cystic fibrosis, with the goal of improving health through restoration of these bacteria.

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Rahul Sarpeshkar, Ph.D.

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Rahul Sarpeshkar

Thomas E Kurtz Professor, Professor of Engineering, Microbiology and Immunology, Physics, Molecular and Systems Biology

Office: 507A Vail

Phone: 603-646-6821


Synthetic analog and digital biological circuits in electri-cigenic and other microbes; Applications of synthetic and systems biology to immunology, infectious disease, and cancer; Precision measurement, electronic circuit modeling, and feedback control of living cells at the fundamental limits set by physics.

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G. Eric Schaller, Ph.D.

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G. Eric Schaller

Professor of Biological Sciences

Office: 339 Life Sciences Center

Phone: 603-646-2525


Signal transduction by the plant hormones ethylene and cytokinin, and how these hormones act to control growth and development.


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Christopher J. Shoemaker, Ph.D.


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Christopher Shoemaker

Assistant Professor of Biochemistry and Cell Biology

Office: 302B Vail

Phone: 603-646-5209

We are interested in the molecular mechanisms governing mammalian autophagy. We take a multidisciplinary approach involving CRISPR-based genetic screening, flow cytometry, quantitative microscopy and biochemical analysis.

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Roger D. Sloboda, Ph.D.

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Rodger Sloboda

Ira Allen Eastman Professor Biological Sciences, Active Emeritus

Office: 222 Life Sciences Center

Phone: 603-646-2377


We study microtubule dependent particle motility inside cells using intraflagellar transport (IFT) in the biflagellate green alga, Chlamydomonas and the primary cilia of MDCK cells in culture as the model systems.


No longer accepting new thesis students.

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Bruce Stanton, Ph.D.

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Bruce Stanton

Andrew C. Vail Memorial Professor

Professor of Microbiology and Immunology, and of Physiology

Office: 615 Remsen

Phone: 603-646-5395

Our laboratory studies the genetic disease Cystic Fibrosis. In particular we study host pathogen interactions between bacteria and human airway epithelial cells and the interactome of CFTR and how interacting proteins regulate CFTR trafficking. We also examine how environmental toxins, in particular arsenic, cause and contribute to respiratory and diseases and inflammation.


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Mark Sundrud, Ph.D.

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Sundrud, Mark

Professor of Medicine, and of Microbiology and Immunology

Office:  Borwell 630W

The Sundrud laboratory is focused on the identification and regulation of pro-inflammatory T cell subsets that are involved in the development and persistence of chronic inflammatory disorders. The laboratory integrates the use of clinical human tissue samples, primary T cell culture techniques, mouse models of autoimmunity, and molecular biology and biochemistry to forge new insight into the development and pathogenesis of inflammation. The lab is particularly interested in metabolic and stress response pathways that control T cell development and function.

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Surachai Supattapone, M.D., Ph.D., D.Phil.


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Surachai Supattapone

Professor of Biochemistry and Cell Biology, and Medicine

Office: 311 Vail

Phone: 603-646-5212

Our lab investigates the molecular mechanisms responsible for the propagation of protein misfolding in neurodegenerative diseases, with special focus on infectious mammalian prions.  We also use whole genome CRISPR libraries to study various areas of cell biology in mammalian cells.

 

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Edward J. Usherwood, Ph.D.

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Edward Usherwood

Professor of Microbiology and Immunology

Office: 608E Borwell

Phone: 603-646-5224


Research in the Usherwood lab focuses on T cell-mediated immune surveillance to virus infections and cancer. We are interested in factors that regulate T cell memory and immune surveillance. A major goal is to exploit these findings to develop novel immunotherapies for cancer and persistent virus infections.

 

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Lauren Walker, Ph.D.

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Lauren Walker, Ph.D.

Assistant Professor, Molecular and Systems Biology

Office:

Phone:

The Walker lab uses a zebrafish model to study how motor neurons find their correct muscle targets to enable coordinated movement. We use a combination of genetics, molecular biology, live imaging, and transcriptomics to understand how neurons interact with cells and signals in their environment to form appropriate connections during development and regeneration.  

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Xiaofeng Wang, Ph.D.

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Xiaofeng Wang

Assistant Professor of Molecular and Systems Biology

Office: 632 Rubin

Phone:  603-653-9974


Our work focuses on cancer epigenetics. We are particularly interested in studying a family of chromatin remodeling complexes, which are frequently mutated in a variety of human cancers. Our work is aimed to understand how these mutations cause cancer, focusing on the regulation of chromatin structure dynamics (epigenomics) and chromatin remodeler protein complex assembly, as well as using genetic and chemical screens to identify potential therapeutic targets in human cancers. 


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William T. Wickner, M.D.

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William Wickner

Professor of Biochemistry and Cell Biology

Office: 425 Remsen

Phone: 603-646-5214

We study how membrane vesicles fuse as they deliver new proteins, hormones, and neurotransmitters to their destinations.

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Hermes Yeh, Ph.D.

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Hermes Yeh

William W. Brown 1835 Memorial Professor

Professor of Molecular and Systems Biology, and Neurobiology

Office: 625 Remsen

Phone: 603-646-5264

My lab is interested in the cellular and molecular mechanisms of neurotransmitter and neuroreceptor interactions in the adult and developing brain. Ongoing research combines neuroanatomical, electrophysiological, molecular and behavioral approaches in a mouse model of FASD to study the consequences of prenatal ethanol exposure on embryonic corticogenesis, neurotransmitter receptors, synaptic transmission, and behavior. Our work has unifying implications insofar as the insights gained may be applicable toward understanding the pathoetiology of other neurodevelopmental brain disorders, such as autism and ADHD.

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