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Related Concept Videos

iPS Cell Differentiation01:22

iPS Cell Differentiation

The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
Cellular Differentiation00:57

Cellular Differentiation

How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
A zygote is a...
Forced Transdifferentiation01:28

Forced Transdifferentiation

Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial transdifferentiation occurs...
Determination01:51

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In contrast, determination...

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Related Experiment Video

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Laser Cell Ablation in Intact Drosophila Larvae Reveals Synaptic Competition
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Blimp1: driving terminal differentiation to a T.

Annie Xin, Stephen L Nutt, Gabrielle T Belz

    Advances in Experimental Medicine and Biology
    |August 16, 2011
    PubMed
    Summary

    B lymphocyte maturation-induced protein-1 (Blimp1) is a key regulator of immune cell differentiation. Blimp1 controls plasma cell and T cell development, crucial for immune responses and preventing inflammatory disease.

    Area of Science:

    • Immunology
    • Molecular Biology
    • Cell Biology

    Background:

    • B lymphocyte maturation-induced protein-1 (Blimp1) is a transcriptional repressor.
    • It is expressed in lymphocytes undergoing effector differentiation.
    • Blimp1 is a master regulator of plasma cell differentiation and T cell homeostasis.

    Purpose of the Study:

    • To investigate the role of Blimp1 in immune cell differentiation and inflammatory disease.
    • To understand the regulatory mechanisms and downstream effects of Blimp1 induction.

    Main Methods:

    • Analysis of Blimp1 expression in various immune cell subsets.
    • Studies using Blimp1-deficient mouse models to assess immune function and disease development.
    • Investigating the impact of cytokines and signaling pathways on Blimp1 induction.

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    Main Results:

    • Blimp1 is essential for the terminal differentiation of plasma cells and CD8(+) cytotoxic T cells.
    • Blimp1-deficient mice exhibit spontaneous inflammatory disease due to T cell infiltration.
    • Blimp1 induction is mediated by cytokines like IL-2, IL-4, IL-12, IL-21, and TCR/co-stimulatory signals.

    Conclusions:

    • Blimp1 plays a critical, conserved role in the terminal differentiation of multiple immune cell types.
    • Dysregulation of Blimp1 contributes to inflammatory conditions.
    • Blimp1 is a central player in adaptive immunity and immune homeostasis.