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Immune deficiency, autoimmunity and aging.

E J Yunis, G Fernandes, L J Greenberg

    Birth Defects Original Article Series
    |January 1, 1975
    PubMed
    Summary
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    Immune deficiency is linked to autoimmunity and cancer across all ages. Cellular replacement and hybridization in mice can improve immune function, survival, and delay autoimmune disease onset.

    Area of Science:

    • Immunology
    • Gerontology
    • Genetics

    Background:

    • Immune deficiency states are observed across all age groups in humans and animals.
    • A correlation exists between immune deficiency, autoantibody production, and malignancy.
    • Aging involves primary and secondary events impacting functional decline.

    Purpose of the Study:

    • To investigate the impact of cellular replacement and hybridization on immune function and survival in immunologically deficient mice.
    • To explore the genetic basis of aging and optimal functional longevity.

    Main Methods:

    • Cellular replacement therapy in immunologically deficient mice.
    • Selected hybridization techniques in mouse models.
    • Defining aging through primary and secondary events and assigning optimum functional longevity.

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    Main Results:

    • Cellular replacement corrected immune function and slightly increased survival in deficient mice.
    • Selected hybridization significantly increased survival and delayed autoimmune symptom onset.
    • Optimal functional longevity is proposed to be genetically based and controlled by a longevity homeostasis gene complex.

    Conclusions:

    • Interventions like cellular replacement and hybridization can ameliorate immune deficiency and extend lifespan.
    • Genetic factors, including immune response (Ir) genes and endocrine balance genes, are crucial for longevity and delayed aging.
    • Understanding the genetic control of longevity homeostasis is key to addressing age-related immune decline and associated diseases.