Beta-cell Proliferation
Beta-cell Proliferation - Related Videos
09:50
In situ Quantification of Pancreatic Beta-cell Mass in Mice
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Cited by 6 •
2010
The following protocol outlines the process of pancreatic dissection for virtual slice imaging, and the subsequent quantification of all GFP-tagged beta-cells in the entire pancreas.
22:49
Optimized Staining and Proliferation Modeling Methods for Cell Division Monitoring using Cell Tracking Dyes
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Cited by 45 •
2012
Successful use of cell tracking dyes to monitor immune cell function and proliferation involves several critical steps. We describe methods for: 1) obtaining bright, uniform, reproducible label-ing with membrane dyes; 2) selecting fluorochromes and data acquisition conditions; and 3) choosing a model to quantify cell proliferation based on dye dilution.
09:31
Assessing Replication and Beta Cell Function in Adenovirally-transduced Isolated Rodent Islets
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Cited by 16 •
2012
This protocol allows one to identify factors that modulate functional beta cell mass to find potential therapeutic targets for the treatment of diabetes. The protocol consists of a streamlined method to assess islet replication and beta cell function in isolated rat islets following manipulation of gene expression with adenoviruses.
12:12
Methods to Assess Beta Cell Death Mediated by Cytotoxic T Lymphocytes
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Cited by 14 •
2011
Cell-mediated lymphocytotoxicity (CML) assays can be used to test autoreactive responses and study mechanisms of cell death in vitro. However, using live-cell confocal microscopic imaging techniques with fluorescent dyes, the type and kinetics of cell death as well as the pathways utilized can be studied in greater detail.
12:35
Comparison of Three Different Methods for Determining Cell Proliferation in Breast Cancer Cell Lines
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Cited by 17 •
2016
This protocol describes the use of three different methods for analyzing cell proliferation in breast cancer cell lines. This includes the use of conventional cell counting, luminescence-based cell viability, and cell counting through the use of a cell imager. Each offers advantages for the reproducible measurement of cell proliferation.
FAQs
Extracellular growth signals, nutrients, and metabolic cues can activate intracellular pathways that move beta cells toward cell-cycle entry. The process then requires DNA replication followed by cytokinesis, the physical separation of one cell into two. Considering these stages together helps researchers distinguish initial signaling from successful completion of division.
Successful expansion requires more than repeated cell division. As beta cells proliferate, mechanisms controlling cell identity and survival must remain coordinated with cell-cycle activity. This coordination matters because an increased cell population is biologically meaningful only if the resulting cells retain the identity and viability needed to contribute to insulin production.
Changing insulin demand provides a biological context for studying beta-cell proliferation. The pancreas must adapt its insulin-producing capacity to metabolic needs, so researchers examine how growth signals, nutrients, and metabolic cues relate to cell-cycle activation. This perspective connects cellular division with maintenance of glucose regulation rather than treating proliferation as an isolated event.
In diabetes research, the key question is not simply whether beta cells can enter the cell cycle, but whether their population remains sufficient for insulin production and glucose regulation. Studying proliferation helps clarify how beta-cell mass becomes insufficient and can identify points where impaired growth, survival, or identity may contribute to that decline.
Beta-cell proliferation is relevant to regenerative therapy because increasing the beta-cell population could help restore insulin-producing capacity. Research can use the process to investigate treatments that encourage cell-cycle entry while preserving beta-cell identity and survival. The desired outcome is not cell number alone, but a larger population of functional insulin-producing cells.
In islet transplantation, understanding how beta cells expand may help researchers improve strategies for restoring insulin-producing tissue. Proliferation research provides a way to consider whether transplanted or regenerated cells can increase in number while maintaining the properties required for insulin production. This application links basic cell biology with efforts to address insufficient beta-cell mass.