3 - - 基乙烯酸在碳化合物上的新兴作用 elegans 衰老 免疫功能 免疫功能
Luis S Espejo1, Destiny DeNicola1, Leah M Chang1
1Molecular & Cellular Biology, University of Arizona, Tucson, AZ, USA.
bioRxiv : the preprint server for biology
|January 23, 2024
概括
3-氨酸 (3HAA) 延长寿命,增强老化生物体的免疫力. 这种代谢物也起到抗菌作用,其功能由组织特定的合成,局部化和降解来调节.
科学领域:
- 代谢途径和免疫反应.
背景情况:
- 3-甲酸 (3HAA) 是通过kynurenine通路的酸代谢中的一种短暂代谢物.
- 在哺乳动物免疫反应中,金氨酸通路的作用受到争议,具有潜在的有害或有利的影响.
- 以前的研究表明,3HAA积累可以延长模型生物的寿命,但根本机制尚不清楚.
结论:
- 3-氨酸 (3HAA) 具有增强免疫力和抗微生物功能.
- 3HAA合成,局部化和降解的细分化表明一种新的免疫调节机制.
- 这种3HAA的组织特异性调节可能表明在宿主防御机制中保留了进化作用.
相关概念视频
01:19The Effect of Aging on Tissues
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...
01:26Aging
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...