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Core - Cell Biology

    Chapter 39

    Stem Cell Biology And Renewal in Epithelial Tissue

    39.1 : Zygotic Development And Stem Cell Formation01:10

    39.1 : Zygotic Development And Stem Cell Formation

    The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a ...

    5.1K views
    39.2 : Source And Potency Of Stem Cells01:27

    39.2 : Source And Potency Of Stem Cells

    Stem cells are undifferentiated cells with extensive self-renewal properties that help them maintain their population during the fetal and adult stages of ...

    4.7K views
    39.3 : Stem Cell Niche01:26

    39.3 : Stem Cell Niche

    The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high ...

    5.0K views
    39.4 : Renewal of Intestinal Stem Cells01:23

    39.4 : Renewal of Intestinal Stem Cells

    The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the ...

    2.5K views
    39.5 : Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal01:22

    39.5 : Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal

    Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the ...

    2.2K views
    39.6 : Role Of Notch Signalling In Intestinal Stem Cell Renewal01:12

    39.6 : Role Of Notch Signalling In Intestinal Stem Cell Renewal

    Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the ...

    2.1K views
    39.7 : Renewal of Skin Epidermal Stem Cells01:12

    39.7 : Renewal of Skin Epidermal Stem Cells

    The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly ...

    2.5K views
    39.8 : Multipotency and Niche of Bulge Stem Cell01:06

    39.8 : Multipotency and Niche of Bulge Stem Cell

    A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair ...

    3.4K views
    39.9 : Clinical Applications of Epidermal Stem Cells01:19

    39.9 : Clinical Applications of Epidermal Stem Cells

    Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin ...

    2.7K views
    39.10 : Distinctive Features of Adult Stem Cells vs Cancer Stem Cells01:18

    39.10 : Distinctive Features of Adult Stem Cells vs Cancer Stem Cells

    A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells. ...

    3.4K views
    39.11 : Stem Cell Culture01:17

    39.11 : Stem Cell Culture

    Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of ...

    5.1K views
    39.12 : Tissue Renewal without Stem Cells01:23

    39.12 : Tissue Renewal without Stem Cells

    After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, ...

    1.7K views
    39.13 : Unrenewable Cells00:50

    39.13 : Unrenewable Cells

    In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be ...

    2.3K views
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