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26081285
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Previously, we reported that high glucose induced podocyte injury through upregulation of the (pro)renin receptor (PRR).
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26081285
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We hypothesized that increasing PRR reduces autophagy and increases apoptosis of mouse podocytes exposed to high glucose via activation of the PI3K/Akt/mTOR signaling pathway.
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26081285
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High glucose significantly increased mRNA and protein levels of PRR, phosphorylation of PI3K/Akt/mTOR, and p62.
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26081285
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In the absence of PRR, activation of Akt with sc-79 or mTOR with MHY-1485 increased p62 accumulation.
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26081285
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Based on these data, we conclude that high glucose decreases autophagy and increases apoptosis in mouse podocytes through the PRR/PI3K/Akt/mTOR signaling pathway.
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6 |
26764202
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Autophagy was evaluated by measuring the expressions of light chain 3, p62, beclin-1, and autophagy-related gene 5.
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29999001
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Genistein is derived from a leguminous plant, and MyD88 and TRIF are adaptor molecules in the Toll-like receptor (TLR) signaling pathway, which may play a role in autophagy.
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29999001
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In this study, we utilized an in vitro high glucose (HG)-treated podocyte model to investigate the effects and underlying mechanisms of Genistein and MyD88 or TRIF siRNA induced autophagy and renal protection.
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29999001
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MATERIAL AND METHODS An immortalized mouse podocyte cell line was treated with HG, Genistein, chloroquine, and/or transfected with specific Myd88 and TRIF siRNAs.
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29999001
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The expression of autophagy-related factors and podocyte structure and functional markers, including LC3, p62, p-mTOR, synaptopodin, and nephrin, were measured by Western blot, and LC3 and p-mTOR expression were also assessed by immunofluorescence.
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11 |
30186468
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After 24 h of treatment, MPC5 cells were collected to measure autophagy-related protein levels, including microtubule-associated protein light chain 3 (LC3), p62, cluster of differentiation (CD)63, phosphorylated-protein kinase B (Akt), Akt, p-mammalian target of rapamycin (mTOR), and mTOR, via western blotting, immunofluorescence or both, and to determine apoptosis by flow cytometry.
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31116585
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We hypothesized that a functional apolipoprotein LI (APOL1)-miR193a axis (inverse relationship) preserves, but disruption alters, the podocyte molecular phenotype through the modulation of autophagy flux.
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31116585
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G0-, G1-, and G2-podocytes showed enhanced expression of light chain (LC) 3-II and beclin-1, but a disparate expression of p62 (low in wild-type but high in risk alleles).
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14 |
31116585
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Docking, protein-protein interaction, and immunoprecipitation studies with antiautophagy-related gene (ATG)14L, anti-UV radiation resistance-associated gene (UVRAG), or Rubicon antibodies suggested the formation of ATG14L complex I and UVRAG complex II in G0-podocytes and the formation of Rubicon complex III in G1- and G2-podocytes.
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15 |
31363726
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CD68 expression was measured by immunohistochemistry analysis, and the expressions of IL-1β, IL-6, and MCP-1 mRNA were measured by qRT-PCR.
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16 |
31363726
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The results showed that CMP suppressed the expressions of CD68, IL-1β, IL-6, and MCP-1 mRNA induced by STZ.
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31363726
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The results showed that the administration of CMP was able to overcome the STZ-treated autophagy deficiency, significantly increase the rate of autophagy in the kidney, promote the expression of Atg5, beclin1 and LC3 protein, and reduce the expression of p62 protein.
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31485651
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Sam68 mediates high glucose‑induced podocyte apoptosis through modulation of Bax/Bcl‑2.
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31485651
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Furthermore, HG increased Bax and decreased Bcl‑2 protein expression in cultured podocytes, and this effect was blocked by Sam68 knockdown.
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31485651
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The results of the present study revealed that Sam68 mediated HG‑induced podocyte apoptosis, probably through the Bax/Bcl‑2 signaling pathway, and thus may be a potential therapeutic target for DN.
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21 |
31485651
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Sam68 mediates high glucose‑induced podocyte apoptosis through modulation of Bax/Bcl‑2.
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22 |
31485651
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Furthermore, HG increased Bax and decreased Bcl‑2 protein expression in cultured podocytes, and this effect was blocked by Sam68 knockdown.
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31485651
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The results of the present study revealed that Sam68 mediated HG‑induced podocyte apoptosis, probably through the Bax/Bcl‑2 signaling pathway, and thus may be a potential therapeutic target for DN.
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24 |
31485651
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Sam68 mediates high glucose‑induced podocyte apoptosis through modulation of Bax/Bcl‑2.
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25 |
31485651
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Furthermore, HG increased Bax and decreased Bcl‑2 protein expression in cultured podocytes, and this effect was blocked by Sam68 knockdown.
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26 |
31485651
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The results of the present study revealed that Sam68 mediated HG‑induced podocyte apoptosis, probably through the Bax/Bcl‑2 signaling pathway, and thus may be a potential therapeutic target for DN.
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27 |
31545399
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We observed that HG induced podocyte injury, accompanied by increases in Cx43 expression and impaired autophagic flux, as evidenced by the accumulation of LC3II/LC3I and p62.
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32482387
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Interestingly, we detected an increase in LC3BII and SQSTM1/P62 in MPC5 through inhibiting TM7SF1, and which can be completely corrected after blocking the autolysosome degradation with chloroquine (CQ).
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32482387
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Moreover, inhibition of TM7SF1 expression did not increase the mRNA level of SQSTM1/P62.
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32482387
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Theses results suggested that inhibition of TM7SF1 led to impaired degradation of autophagy products, which manifest as an abnormal accumulation of LC3BII and SQSTM1/P62.
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33204708
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Curcumin Improves the Renal Autophagy in Rat Experimental Membranous Nephropathy via Regulating the PI3K/AKT/mTOR and Nrf2/HO-1 Signaling Pathways.
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33204708
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Western blot analyzed the levels of apoptosis, autophagy, PI3K/AKT/mTOR, and Nrf2/HO-1 pathway-associated proteins.
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33204708
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In addition, curcumin downregulated the expression of Bax, Caspase-3, p62, PI3K, p-AKT, and p-mTOR proteins and upregulated the Bcl-2, beclin1, LC3, Nrf2, and HO-1 levels in this animal model.
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33204708
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The results provide a scientific basis that curcumin could significantly alleviate the development of MN by inducing autophagy and alleviating renal oxidative stress through the PI3K/AKT/mTOR and Nrf2/HO-1 pathways.
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33441223
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[Down-regulation of PHLPP1 expression ameliorates high glucose-induced autophagy inhibition and apoptosis promotion of podocytes by activating PI3K/AKT/mTOR pathway].
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33441223
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Objective To investigate the expression of pleckstrin homology(PH) domain leucine-rich repeats protein phosphatase 1 (PHLPP1) in renal tissue of patients with diabetic nephropathy (DN) and its effect on podocyte autophagy and apoptosis, and to explore its related mechanism.
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33441223
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Methods Immunohistochemistry was used to detect PHLPP1 expression in renal tissue of patients with DN and non-diabetes, and immunofluorescence histochemical staining was used to detect the co-expression of nephrin and PHLPP1 to determine the localization of PHLPP1 in podocytes.
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33441223
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The formation of autophagic vesicles was observed by transmission electron microscope, and the protein expression levels of LC3, P62, PI3K, mTOR, p-mTOR, cleaved caspase 3 (c-caspase-3), AKT, p-AKT were detected by Western blotting.
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33441223
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Compared with NG group, the autophagy level of podocytes, the expression of PI3K and the phosphorylation level of mTOR in the HG group, HG combined with si-PHLPP1 group and HG combined with HCQ group were significantly reduced; the apoptosis rate and c-caspase-3 protein expression level were significantly enhanced; the phosphorylation level of AKT in the HG combined with si-PHLPP1 group significantly increased, but it in the other two groups significantly decreased.
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33441223
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Compared with HG group, the apoptosis rate and c-caspase-3 protein expression in the HG combined with si-PHLPP1 group were significantly reduced, while autophagy level, PI3K protein expression and phosphorylation level of mTOR and Akt protein were significantly elevated.
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33441223
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Conclusion PHLPP1 is highly expressed in renal tissue of patients with DN, and the down-regulated expression of PHLPP1 in podocytes can promote the autophagy of podocytes and reduced the apoptosis of podocytes by activating PI3K/AKT/mTOR pathway.
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33796024
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Expressions of mitochondrial dynamics-related and autophagy-related proteins, such as Mfn2, Fis1, P62, and LC3, as well as Nrf2, Keap1, PINK1, and Parkin, were examined by immunohistochemistry, western blot, and real-time PCR, respectively.
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33796024
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AS II also partially restored the renal expression of mitochondrial dynamics-related and autophagy-related proteins, including Mfn2, Fis1, P62, and LC3.
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33796024
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These results suggested that AS II ameliorated podocyte injury and mitochondrial dysfunction in diabetic rats partly through regulation of Nrf2 and PINK1 pathway.
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45 |
33796024
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Expressions of mitochondrial dynamics-related and autophagy-related proteins, such as Mfn2, Fis1, P62, and LC3, as well as Nrf2, Keap1, PINK1, and Parkin, were examined by immunohistochemistry, western blot, and real-time PCR, respectively.
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46 |
33796024
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AS II also partially restored the renal expression of mitochondrial dynamics-related and autophagy-related proteins, including Mfn2, Fis1, P62, and LC3.
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33796024
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These results suggested that AS II ameliorated podocyte injury and mitochondrial dysfunction in diabetic rats partly through regulation of Nrf2 and PINK1 pathway.
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48 |
34253875
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We showed that wogonin (4, 8, 16 μM) dose-dependently alleviated high glucose (HG)-induced MPC5 cell damage, accompanied by increased expression of WT-1, nephrin, and podocin proteins, and decreased expression of TNF-α, MCP-1, IL-1β as well as phosphorylated p65.
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34253875
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Wogonin reversed HG-suppressed autophagy in MPC5 cells, evidenced by increased ATG7, LC3-II, and Beclin-1 protein, and decreased p62 protein.
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