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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Commentary on Some Recent Theses Relevant to Combating Aging: June 2021.

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    This summary is machine-generated.

    This review covers advancements in protein disaggregases for neurodegenerative diseases, immunomodulation in diabetes, and microvasculature-on-a-chip models. It also explores immune system surveillance of senescent cells and T cell exhaustion in cancer.

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    Area of Science:

    • Biomedical Engineering
    • Immunology
    • Cellular Biology
    • Translational Medicine

    Background:

    • Neurodegenerative diseases like Alzheimer's and Parkinson's involve protein aggregation.
    • Diabetic vascular disease is linked to altered macrophage function.
    • Human disease modeling benefits from advanced in vitro systems.
    • Cellular senescence plays a role in aging and disease.
    • T cell exhaustion impairs anti-tumor and anti-pathogen immunity.
    • Xenotransplantation holds promise for organ shortages.

    Purpose of the Study:

    • To summarize recent theses and advancements in key areas of biomedical research.
    • To highlight novel approaches in disease modeling and therapeutic development.
    • To provide an overview of cutting-edge research across multiple scientific disciplines.

    Main Methods:

    • Engineering protein disaggregases to target toxic protein aggregates.
    • Investigating the effects of hyperglycemia on macrophage immunomodulation.
    • Developing and utilizing microvasculature-on-a-chip systems.
    • Analyzing the interplay between the immune system and senescent cells.
    • Studying the role of transcription factor TOX in T cell exhaustion.
    • Exploring translational progress in xenotransplantation.

    Main Results:

    • Protein disaggregases show potential against alpha-synuclein and amyloid-beta toxicity.
    • Hyperglycemia modulates macrophage behavior in diabetic vascular contexts.
    • Microvasculature-on-a-chip systems offer new avenues for disease modeling.
    • Immune surveillance mechanisms for senescent cells are being elucidated.
    • TOX drives a program of CD8+ T cell exhaustion.
    • Significant translational advancements are being made in xenotransplantation.

    Conclusions:

    • Engineering protein disaggregases offers a novel therapeutic strategy for neurotoxicity.
    • Understanding macrophage immunomodulation is crucial for managing diabetic vascular complications.
    • Microvasculature-on-a-chip technology advances human disease modeling.
    • Senescence surveillance is a critical area linking immunity and aging.
    • Targeting TOX may reinvigorate T cell responses in chronic infections and cancer.
    • Xenotransplantation is moving closer to clinical application.