Dr. Eileen L. Berman and Stanley I. Berman Foundation Chair in Biomedical Research
School of Public Health and Health Sciences
College of Social and Behavioral Sciences
Department of Psychology; Neuroscience And Behavio
Psychology And Neuroscience & Behavior Program
Health Informatics And Implementation Science
Biostatistics And Health Services Research
Endowed Chair in Biochemistry and Molecular Biotechnology II
For more information about the Postdoctoral position in Dr. Rando’s lab please use the link provided. Post doc position
Rotation projects are available to study chromatin structure and function. Project 1. Measure histone dynamics in yeast. Histone dynamics play major roles in chromatin metabolism and in the inheritance of chromatin states. To measure histone replacement rates in yeast, we have created yeast strains carrying inducible epitope-tagged histones H3 and H2A. Using microarrays, we will measure histone replacement rates in a variety of mutant yeast to ascertain the role of various chromatin remodeling factors in histone exchange reactions. Project 2. Characterize mechanisms for epigenetic inheritance in yeast. We have identified a variety of genes whose expression state in yeast is epigenetically heritable. We will screen the yeast genome for genes that affect the inheritance of these expression patterns. Project 3. Measure histone dynamics in embryonic stem cells. Embryonic stem cells are pluripotent cells that can give rise to every type of cell in the adult animal. The role of chromatin structure in maintaining this pluripotent state is poorly understood, but it appears that stem cell chromatin is exceptionally labile relative to that in differentiated cells. We will create stem cell lines with inducible tagged histones to measure histone replacement rates across the mouse genome.
Elisabeth Chair for the Dean of Medicine
The project aims to develop computational algorithms and software programs for analyzing high-throughput sequence data such as ChIP-Seq RNA-Seq small RNA sequencing data. PhD required. A strong background in computational biology especially experience with analyzing high-throughput sequencing data is highly desirable. Excellent communication and writing skills and the ability to work with experimental and computational collaborators are essential. To apply please forward CV cover letter and three references to: Zhiping.Weng@umassmed.edu
Please contact Dr. Weng for information on rotations that are available in her lab.
Rotations <p >Project 1: Genetic screens for proteins that modify or regulate the activity of microRNAs in C. elegans.
Worcester Foundation for Biomedical Research Chair II
Focus: Mucosal inflammation, host: pathogen interactions, and cancer biology
Melvin S. and Sandra L. Cutler Chair in Biomedical Research
An entry level postdoctoral position is open immediately in the laboratory of Dr. Susan L. Swain to study the factors that control the development and survival of CD4 and CD8 T cell memory. Graduate student experience with tissue culture, in vitro assay, flow cytometry, experience in mouse models on infectious disease and a knowledge of cellular and molecular immunology are all strongly desired.
<p >Rotations: Projects in the following areas <p >CD4 T cell memory. We can generate in vitro CD4 T cells that are for all extents and purposes identical to the memory CD4 T cells observed in vivo. In situ memory CD4 T cells persist at very low frequency and in most instances it is difficult to analyze them thoroughly using tetramer or multimer reagents both because of their low frequency and the relatively low specific affinity of the Class II reagents for the TcR. Being able to generate “recent” memory cells in vitro gives us the opportunity to analyze in detail the mechanisms by which memory CD4 T cells may contribute to secondary immunity and immune protection. Once identified. will determine if particular pathways are relevant in situ. We have discovered that memory CD4 T cells are superior in protection to those from the primary response and that they display pleitropic functions that have not been previously identified. <p > Cytotoxic CD4 Effectors. One unexpected function of CD4 T cells we identified is robust, perforin-dependent cytotoxic activity (7, 16). Cytotoxic activity by CD4 T cells has been reported in response to several infections, but its significance has not heretofore been established. We find that “Th1 polarized” CD4 effectors and more relevantly the CD4 effectors found in the lung following influenza infection, are able to kill infected or peptide-pulsed Class II-bearing targets and we find that this perforin dependent activity can work together with antibody to provide protection against lethal influenza challenge in otherwise unprimed mice (17). We also will determine when memory CD4 T cells re-express cytotoxic activity following in vivo challenge and how cytotoxic killing contributes to the memory cell mediated protection. We want to analyze how the program of cytotoxicity is induced in these “ThCTL”. <p > Memory CD4 Cells Enhance an Innate Response. Memory cells can act by becoming secondary effectors but they are best characterized by their ability respond rapidly even to low antigen doses, by producing cytokines and chemokines and it is assumed that these initial abilities are key to memory cell activity. However this assumption has not been directly demonstrated and the mechanisms involved and how they might contribute to immunity have not been elucidated. We find that restimulation of memory CD4 T cells leads to a markedly enhanced early innate response to influenza infection both in the lung and systemically (17). This response peaks 2-3 days after infection and is transient. We see enhanced production of IL-6 locally and systemically and enhanced production a broad spectrum of innate inflammatory mediators in the lung. We hope to determine in detail the pathways leading to optimum memory T cell-induced innate responses. We suggest a concurrent activation of CD4 memory cells may be an effective adjuvant for vaccination and will be testing this hypothesis as well as mechanisms that lead to viral control over the next couple of years. <p >Aging and Immunity: The study of the impact of aging on CD4 T cell function at the naïve and memory stages has lead us to better understanding of fundamental aspects of T cell behavior in addition to providing important information about what vaccine approaches are most likely to be successful for the aged. Nature of CD4 Aging “Defects”. We have identified multiple levels at which aged naïve CD4 T cells are defective including initial early response to TcR triggering, IL-2 production, expansion and effector generation. The defects in helper function and in the 20 response of memory cells generated from aged naïve CD4 T cells are particularly dramatic. In recent studies we have recapitulated memory age-associated defects in recently generated memory cells in vitro (23). In vitro aged memory cells are markedly defective in production of particular cytokines, IL-4, IL-5 and IL-2, while others are little affected (IFNg, IL-10, TNF), suggesting the aging “defect” may be restricted to loss of potential to make certain CD4 T cell subsets, such as those responsible for help to B cells .We will pursue this hypothesis both in vitro and in vivo. <p >We have found that aged naïve CD4 T cells are in fact longer-lived than their naïve counterparts (23). We find that reduced expression of Bim, a proapoptotic protein, is responsible for this increase in lifespan and that the increase in lifespan is required for the development of aging defects. We are now investigating the factors that regulate Bim expression. <p >Enhancement by Inflammatory Cytokines. We have shown that the defective effector generation responses of naïve CD4 T cells from aged animals can be overcome by IL-2 and by proinflammatory cytokines, in particular a mix of IL-1, IL-6 and TNF (20,21). We want to determine the extent to which the inflammatory cytokines can reverse the heritable aging defects and restore functional memory generation. We have developed in vitro models to test the generation of effectors and memory. In these models we are evaluating TLR agonists for their ability to restore aged naïve CD4 responses to peptide-pulsed derived dendritic cells (DC). Pre-incubation of DC with many TLR agonists, enhances expansion of the responding aged naïve CD4 T cells via a mechanism dependent on IL-6 that acts in part by increasing survival of the developing effector population. We plan to use this model to identify the extent of the rescue and what pathways and mechanisms contribute with the ultimate goal of evaluating whether specific TLR stimulation or stimulation of specific pathways might improve the response of the elderly to vaccines. We want to see if we can reproduce this model with human naïve CD4 T cells and DC derived from peripheral blood and if TLR agonists can also enhance those responses. <p >
Worcester Foundation for Biomedical Research Chair III
Please email Kate.Fitzgerald@umassmed.edu if you are interested in rotations.
Immediate opening! Two postdoctoral positions are available immediately to study cellular andmolecular mechanisms resulting in immunosuppression after alcohol use. Thefocus of this research is the role of monocytes and dendritic cells indecreased antigen-specific T cell activation after alcohol use.Intracellular signalling mechanisms resulting in decreased NF-kBactivation and inflammatory cytokine induction after acute alcoholconsumption are being investigated. Please contact Dr. Szabo for details.
Rotation projects are available related to microbiota-gut brain axis and antibiotic usage and the sequelae of antibiotic use in hospitalized patients which include Clostridium difficile and multi-drug resistant organism infection and colonization.
A postdoctoral position is available to study in this laboratory. Contact Dr. Rogaev for additional details.
Leo P. and Theresa M. LaChance Chair in Medical Research
Lawrence lab research bridges fundamental questions of developmental epigenetics with translational research into the common problem of chromosome abnormalities, particularly Down syndrome.
Please contact Dr. Imbalzano to discuss the possibility of a postdoctoral training.See lab research interests and publications for recent topics of research. http://www.umassmed.edu/imbalzanolab/ http://www.umassmed.edu/imbalzanolab/publications/
Please contact Dr. Imbalzano to discuss the possibility of a rotation project. Rotation projects are generally based on current work and tailored to the interests of the student. See lab research interests and publications for recent topics. http://www.umassmed.edu/imbalzanolab/ http://www.umassmed.edu/imbalzanolab/publications/
Arthur F. Koskinas Chair in Neuroscience
Many rotation projects are available so please inquire.
A postdoctoral position is available to study in this laboratory. Contact Dr. Ip for additional details.
Rotation Projects Project #1: Mechanistic study of isolated mutants that show abnormal intestinal stem cell division phenotypes. Project #2:Perform transgenic RNAi-based genetic screen for genes required for intestinal stem cell response to tissue damage.
Barbara Helen Smith Chair in Preventive & Behavioral Medicine
Joseph J. Byrne Chair in Biomedical Research
? Rotation Projects Multiple rotation projects are available in several areas related to long-range gene regulation and higher order chromosome organization. Projects include thorough analyses of the biochemical mechanisms of long-range gene regulation of specific disease-related genes, as well as large-scale analyses of chromosome organization using high-throughput genomics technologies (5C and Hi-C). The lab employs a wide range of experimental approaches, including cell culture, protein biochemistry, microscopy, genomics as well computational approaches such as bioinformatics and modeling. Specific rotation projects are determined dependent on the interest of the student.
Richard M. Haidack Professor in Medicine
Dr. John Meyers Professor in Primary Care Medicine
Population and Quantitative Health Sciences
Biochemistry and Molecular Biotechnology
Prevention Research Center at UMass Chan
Healthcare Delivery and Population Sciences at UMass Chan - Baystate
Worcester Foundation for Biomedical Research Chair I
Preventing Osteoarthritis After an ACL Injury
Preventing Osteoarthritis After an ACL Injury Playing the Long Game: Consensus for Preventing OA
Preventing Osteoarthritis After an ACL Injury Playing the Long Game: Consensus for Preventing OA Characteristics of Accelerated Hand Osteoarthritis
Joseph D. Early Chair in Biomedical Research