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Exosomes from circRNA-Ptpn4 can modify ADSC treatment and repair nerve damage caused by cerebral infarction by shifting microglial M1/M2 polarization
This study showed that exosomes from hypoxia pretreatment of ADSCs had significant effects in promoting functional recovery following in vivo MCAO, through suppressed inflammatory factor expression, and shifting the microglial from M1 to M2 polarization activation. The results showed that circRNA-Ptpn4 was highly expressed during hypoxia pretreatment of ADSCs exosomes. Exosomes from circ-Ptpn4-modified ADSCs had a greater ability to promote functional recovery. The circ-Ptpn4 delivered from ADSC exosomes induced microglia/macrophage polarization from M1 to M2 by suppressing miR-153-3p and enhancing Nrf2 expressions. Taken ...
Source: Molecular and Cellular Biochemistry - August 26, 2023 Category: Biochemistry Authors: Fei Wang Mei Jiang Yongbin Chi Gang Huang Mingming Jin Source Type: research

Functional reconstruction of the impaired cortex and motor function by hMGEOs transplantation in stroke
Biochem Biophys Res Commun. 2023 Jun 3;671:87-95. doi: 10.1016/j.bbrc.2023.06.010. Online ahead of print.ABSTRACTStroke is the leading cause of death and long-term disability worldwide. But treatments are not available to promote functional recovery, and efficient therapies need to be investigated. Stem cell-based therapies hold great promise as potential technologies to restore function in brain disorders. Loss of GABAergic interneurons after stroke may result in sensorimotor defects. Here, by transplanting human brain organoids resembling the MGE domain (human MGE organoids, hMGEOs) derived from human induced pluripotent...
Source: Biochemical and Biophysical Research communications - June 10, 2023 Category: Biochemistry Authors: Shi-Ying Cao Meng-Dan Tao Shu-Ning Lou Di Yang Yu-Hui Lin Hai-Yin Wu Lei Chang Chun-Xia Luo Yun Xu Yan Liu Dong-Ya Zhu Source Type: research

Clinical Ageing
Subcell Biochem. 2023;103:437-458. doi: 10.1007/978-3-031-26576-1_16.ABSTRACTAgeing is generally characterised by the declining ability to respond to stress, increasing homeostatic imbalance, and increased risk of ageing-associated diseases . Mechanistically, the lifelong accumulation of a wide range of molecular and cellular impairments leads to organismal senescence. The aging population poses a severe medical concern due to the burden it places on healthcare systems and the general public as well as the prevalence of diseases and impairments associated with old age. In this chapter, we discuss organ failure during agein...
Source: Sub-Cellular Biochemistry - April 29, 2023 Category: Biochemistry Authors: Roxana Surugiu Daiana Burdusel Mihai-Andrei Ruscu Andreea Cercel Dirk M Hermann Israel Fernandez Cadenas Aurel Popa-Wagner Source Type: research

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