The Cell Biology and Histology Core (CBHC) is a critical resource to this PPG and will be used by all Projects. The CBHC will provide the projects with the following services: 1. preparation of cardiac progenitor cells (CPCs): isolation, characterization, and storage of CPCs from wild type and genetically modified mice, 2. preparation of stable lentiviral expressing lines of CPCs, 3. immunohistopathology: Preparation of histological sections for all projects, histopathology to assess gross and microscopic myocardial structure, fluorescent microscopic imaging of CPCs in heart section, analysis of vasculature. The CBHC will be located at the University of California, San Diego. The CBHC will house and maintain the equipment and provide fully trained staff for the Projects. It will provide the four projects with access to a wide variety of assays and analyses, including CPC isolation, sorting and characterization, assays of CPC function, and histopathology of heart samples obtained in vivo. CBHC services will also include isolation, maintenance characterization of CPCs from genetically engineered mice for the projects. CBHC will also expand and characterize the human CPCs isolated by Dr. Sussman for use by other projects. CBHC will ensure that all four projects will use CPCs that have been isolated, expanded and sorted the same way. This consistency is extremely important for the integration and comparison of results between the projects. The CBHC will also assist all the Projects with preparation of histological sections and histopathology to assess gross and microscopic myocardial structure, including the extent of fibrosis, quantification of chamber size and myocyte cross sectional area. It will also analyze heart sections for presence of apoptotic cells by TUNEL and anti-deaved caspase-3 immunofluorescence staining, and provide microscopic assessment of cardiac cell structure and signaling molecule localization via immunofluorescence of mouse heart sections. Finally, the CBHC will stain heart sections to detect c-kit positive CPCs plus markers of differentiation and proliferation, and prepare coronary vascular casts. Uniform preparation and analysis of histological sections from hearts are also important for consistent and comparable results between the four projects.

Public Health Relevance

; Heart muscle cells die when the tissue lacks oxygen, as occurs with a myocardial infarction (Ml;heart attack). Here we isolate progenitor cells that we believe could replace these dying cells and determine how to make them better able to heal the heart. We also examine the response of these cells within the heart and their effects on cardiac damage following Ml.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Program Projects (P01)
Project #
2P01HL085577-06
Application #
8452822
Study Section
Heart, Lung, and Blood Initial Review Group (HLBP)
Project Start
Project End
Budget Start
2013-09-15
Budget End
2014-07-31
Support Year
6
Fiscal Year
2013
Total Cost
$252,776
Indirect Cost
Name
San Diego State University
Department
Type
DUNS #
073371346
City
San Diego
State
CA
Country
United States
Zip Code
92182
Parker, Sarah J; Stotland, Aleksandr; MacFarlane, Elena et al. (2018) Proteomics reveals Rictor as a noncanonical TGF-? signaling target during aneurysm progression in Marfan mice. Am J Physiol Heart Circ Physiol 315:H1112-H1126
Broughton, Kathleen M; Wang, Bingyan J; Firouzi, Fareheh et al. (2018) Mechanisms of Cardiac Repair and Regeneration. Circ Res 122:1151-1163
Broughton, Kathleen M; Sussman, Mark A (2018) Enhancement Strategies for Cardiac Regenerative Cell Therapy: Focus on Adult Stem Cells. Circ Res 123:177-187
Gude, Natalie A; Sussman, Mark A (2018) Chasing c-Kit through the heart: Taking a broader view. Pharmacol Res 127:110-115
Yu, Olivia M; Benitez, Jorge A; Plouffe, Steven W et al. (2018) YAP and MRTF-A, transcriptional co-activators of RhoA-mediated gene expression, are critical for glioblastoma tumorigenicity. Oncogene 37:5492-5507
Gude, Natalie A; Firouzi, Fareheh; Broughton, Kathleen M et al. (2018) Cardiac c-Kit Biology Revealed by Inducible Transgenesis. Circ Res 123:57-72
Shires, Sarah E; Gustafsson, Åsa B (2018) Regulating Renewable Energy: Connecting AMPK?2 to PINK1/Parkin-Mediated Mitophagy in the Heart. Circ Res 122:649-651
Woodall, Benjamin P; Gustafsson, Åsa B (2018) Mesenchymal Stem Cell-Mediated Autophagy Inhibition. Circ Res 123:518-520
Lampert, Mark A; Gustafsson, Åsa B (2018) Balancing Autophagy for a Healthy Heart. Curr Opin Physiol 1:21-26
Kubli, Dieter A; Sussman, Mark A (2018) Editorial commentary: Mitochondrial autophagy in cardiac aging is all fluxed up. Trends Cardiovasc Med 28:261-262

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