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10.1016/j.biopha.2020.110816

http://scihub22266oqcxt.onion/10.1016/j.biopha.2020.110816
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suck abstract from ncbi


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pmid33049583      Biomed+Pharmacother 2020 ; 132 (ä): 110816
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  • GB-2 inhibits ACE2 and TMPRSS2 expression: In vivo and in vitro studies #MMPMID33049583
  • Wu CY; Lin YS; Yang YH; Shu LH; Cheng YC; Liu HT
  • Biomed Pharmacother 2020[Dec]; 132 (ä): 110816 PMID33049583show ga
  • After the first case of Coronavirus disease 2019 (COVID-19) was reported in Wuhan, COVID-19 has rapidly spread to almost all parts of world. Angiotensin converting enzyme 2 (ACE2) receptor can bind to spike protein of SARS-CoV-2. Then, the spike protein of SARS-CoV-2 can be cleaved and activated by transmembrane protease, serine 2 (TMPRSS2) of the host cells for SARS-CoV-2 infection. Therefore, ACE2 and TMPRSS2 are potential antiviral targets for treatment of prevention of SARS-CoV-2 infection. In this study, we discovered that 10-250 mug/mL of GB-2, from Tian Shang Sheng Mu of Chiayi Puzi Peitian Temple, can inhibit ACE2 mRNA expression and ACE2 and TMPRSS2 protein expression in HepG2 and 293 T cells without cytotoxicity. GB-2 treatment could decrease ACE2 and TMPRSS2 expression level of lung tissue and kidney tissue without adverse effects, including nephrotoxicity and hepatotoxicity, in animal model. In the compositions of GB-2, we discovered that 50 mug/mL of theaflavin could inhibit protein expression of ACE2 and TMPRSS2. Theaflavin could inhibit the mRNA expression of ACE2. In conclusion, our results suggest that GB-2 and theaflavin could act as potential compounds for ACE2 and TMPRSS2 inhibitors in the further clinical study.
  • |Angiotensin-Converting Enzyme 2/*biosynthesis/genetics[MESH]
  • |Angiotensin-Converting Enzyme Inhibitors/isolation & purification/pharmacology/therapeutic use[MESH]
  • |Animals[MESH]
  • |COVID-19 Drug Treatment[MESH]
  • |COVID-19/epidemiology[MESH]
  • |Drugs, Chinese Herbal/isolation & purification/*pharmacology/therapeutic use[MESH]
  • |Gene Expression/drug effects[MESH]
  • |HEK293 Cells[MESH]
  • |Hep G2 Cells[MESH]
  • |Humans[MESH]
  • |Male[MESH]
  • |Mice[MESH]
  • |Mice, Inbred C57BL[MESH]
  • |Protease Inhibitors/isolation & purification/pharmacology/therapeutic use[MESH]
  • |SARS-CoV-2[MESH]


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