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Displaying 11 to 20 of 44 results for cell biology

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  • Holland Lab

    Research in the Holland Lab focuses on the molecular mechanisms that control accurate chromosome distribution and the role that mitotic errors play in human health and disease. We use a combination of chemical biology, biochemistry, cell biology and genetically engineered mice to study pathways involved in mitosis and their effect on cell and organism physiology. One of our major goals is to develop cell and animal-based models to study the role of cell-division defects in genome instability and tumorigenesis.

    Research Areas: cancer, genomics, molecular biology

  • Inoue Lab

    Complexity in signaling networks is often derived from co-opting one set of molecules for multiple operations. Understanding how cells achieve such sophisticated processing using a finite set of molecules within a confined space--what we call the "signaling paradox"--is critical to biology and engineering as well as the emerging field of synthetic biology.

    In the Inoue Lab, we have recently developed a series of chemical-molecular tools that allow for inducible, quick-onset and specific perturbation of various signaling molecules. Using this novel technique in conjunction with fluorescence imaging, microfabricated devices, quantitative analysis and computational modeling, we are dissecting intricate signaling networks.

    In particular, we investigate positive-feedback mechanisms underlying the initiation of neutrophil chemotaxis (known as symmetry breaking), as well as spatio-temporally compartmentalized signaling of Ras and membrane lipids such as phosphoinositides. In parallel,... we also try to understand how cell morphology affects biochemical pathways inside cells. Ultimately, we will generate completely orthogonal machinery in cells to achieve existing, as well as novel, cellular functions. Our synthetic, multidisciplinary approach will elucidate the signaling paradox created by nature. view more

    Research Areas: biochemistry, cell biology, chemotaxis, cancer, signaling paradox, signaling networks, molecular biology, synthetic biology

    Lab Website

    Principal Investigator

    Takanari Inoue, Ph.D.

    Department

    Cell Biology

  • Jeremy Nathans Laboratory

    The Jeremy Nathans Laboratory is focused on neural and vascular development, and the role of Frizzled receptors in mammalian development. We use gene manipulation in the mouse, cell culture models, and biochemical reconstitution to investigate the relevant molecular events underlying these processes, and to genetically mark and manipulate cells and tissues. Current experiments are aimed at defining additional Frizzled-regulated processes and elucidating the molecular mechanisms and cell biologic results of Frizzled signaling within these various contexts. Complementing these areas of biologic interest, we have ongoing technology development projects related to genetically manipulating and visualizing defined cell populations in the mouse, and quantitative analysis of mouse visual system function.

    Research Areas: vascular development, biochemistry, cell biology, neurodevelopment, genomics, Frizzled receptors, neuroscience

  • John Schroeder Lab

    The John Schroeder Lab focuses on understanding the role human basophils and mast cells play in allergic reactions, as it relates not only to their secretion of potent inflammatory mediators (e.g., histamine and leukotriene C4) but also to their production of pro-inflammatory cytokines. We have long utilized human cells rather than cell lines in order to address the parameters, signal transduction and pharmacological aspects underlying clinically relevant basophil and mast cell responses. As a result, the lab has established protocols for rapidly isolating large numbers of basophils at high purity from human blood and for growing culture-derived mast cells/basophils from human progenitor cells. A variety of assays and techniques are also in place for concurrently detecting cytokines and mediators following a wide range of stimuli. These have facilitated the in vitro testing of numerous anti-allergic drugs for inhibitory activity on basophil and mast cell activation. The lab also studie...s counter-regulation between the IgE and innate immune receptors on human immature dendritic cell subtypes. view more

    Research Areas: cell biology, allergies, inflammation

    Principal Investigator

    John Schroeder, Ph.D.

    Department

    Medicine

  • John T. Isaacs Laboratory

    While there has been an explosion of knowledge about human carcinogenesis over the last 2 decades, unfortunately, this has not translated into the development of effective therapies for either preventing or treating the common human cancers. The goal of the Isaacs’ lab is to change this situation by translating theory into therapy for solid malignancies, particularly Prostate cancer. Presently, a series of drugs discovered in the Isaacs’ lab are undergoing clinical trials in patients with metastatic cancer.

    The ongoing drug discovery in the lab continues to focus upon developing agents to eliminate the cancer initiating stem cells within metastatic sites of cancer. To do this, a variety of bacterial and natural product toxins are being chemically modified to produce “prodrugs” whose cytotoxicity is selectively activated by proteases produced in high levels only by cancer cells or tumor associated blood vessel cells. In this way, these prodrugs can be given systemically to metastati...c patients without un-acceptable toxicity to the host while being selectively activated to potent killing molecules within metastatic sites of cancer.

    Such a “Trojan Horse” approach is also being developed using allogeneic bone marrow derived Mesenchymal Stem cells which are genetically engineered to secrete “prodrugs” so that when they are infused into the patient, they selectively “home” to sites of cancers where the appropriate enzymatic activity is present to liberate the killing toxin sterilizing the cancer “neighborhood”.
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    Research Areas: anti-cancer drugs, stem cell biology

    Lab Website

    Principal Investigator

    John Isaacs, Ph.D.

    Department

    Oncology

  • Jungsan Sohn

    Dr. Sohn's lab is interested in understanding how biological stress-sensors are assembled, detect danger signals and initiate stress response.

    Innate immunity is the first line of defense against invading pathogens in higher eukaryotes. We are using in vitro quantitative biochemical assays and mutagenesis and x-ray crystallography to investigate the underlying operating principles of inflammasomes, a component of the innate immune system, to better understand biological stress sensors.

    Research Areas: immunology, cell biology, cancer, eukaryotes, stress sensors

  • Karen Reddy Laboratory

    The focus of the research in the Reddy Laboratory is to begin to understand how the nuclear periphery and other subcompartments contribute to general nuclear architecture and to specific gene regulation. Our research goals can be broken down into three complementary areas of research: understanding how genes are regulated at the nuclear periphery, deciphering how genes are localized (or "addressed") to specific nuclear compartments and how these processes are utilized in development and corrupted in disease.

    Research Areas: biological chemistry, cell biology, nuclear structure, epigenetics, gene regulation

    Principal Investigator

    Karen Reddy, Ph.D.

    Department

    Biological Chemistry

  • Katherine Wilson Lab

    Research in the Wilson Lab focuses on three components of nuclear lamina structure: lamins, LEM-domain proteins (emerin), and BAF.

    These three proteins all bind each other directly, and are collectively required to organize and regulate chromatin, efficiently segregate chromosomes and rebuild nuclear structure after mitosis. Mutations in one or more of these proteins cause a variety of diseases including Emery-Dreifuss muscular dystrophy (EDMD), cardiomyopathy, lipodystrophy and diabetes, and accelerated aging.

    We are examining emerin's role in mechanotransduction, how emerin and lamin A are regulated, and whether misregulation contributes to disease.

    Research Areas: cell biology, Emery-Dreifuss muscular dystrophy (EDMD), accelerated aging, chromatin, diabetes, genomics, emerin, nuclear lamina, lipodystrophy, cardiomyopathy

    Principal Investigator

    Katherine Wilson, Ph.D.

    Department

    Cell Biology

  • Laboratory of Richard L. Huganir

    The Laboratory of Richard L. Huganir is interested in the mechanisms that regulate synaptic transmission and synaptic plasticity. Our general approach is to study molecular and cellular mechanisms that regulate neurotransmitter receptors and synapse function. We are currently focusing our efforts on the mechanisms that underlie the regulation of the glutamate receptors, the major excitatory neurotransmitter receptors in the brain.

    Research Areas: synapses, neurotransmitters, cell biology, brain, molecular biology

    Lab Website

    Principal Investigator

    Richard Huganir, Ph.D.

    Department

    Neuroscience

  • Liudmila Cebotaru Lab

    Research in the Liudmila Cebotaru Lab studies cystic fibrosis transmembrane conductance regulator (CFTR) mutants. We also investigate corrector molecules that are currently in clinical trials to get a better understanding of their mechanism of action. A major focus of our research is on developing more efficient gene therapy vectors with the ultimate goal of developing a gene therapy for cystic fibrosis.

    Research Areas: cell biology, cystic fibrosis, kidney diseases, gene therapy, corrector molecules

    Principal Investigator

    Liudmila Cebotaru, J.D., M.D.

    Department

    Medicine

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