Assessing the protective effects of cryptotanshinone on CoCl2-induced hypoxia in RPE cells
The development of several retinal diseases is closely related to hypoxia. As a component of the Traditional Chinese medicine Salvia miltiorrhiza, the effects of cryptotanshinone (CT) on retinal cells under hypoxic conditions are not well understood. The aim of the present study was to explore how C...
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Published in | Molecular medicine reports Vol. 24; no. 4 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
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01.10.2021
D.A. Spandidos |
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Abstract | The development of several retinal diseases is closely related to hypoxia. As a component of the Traditional Chinese medicine Salvia miltiorrhiza, the effects of cryptotanshinone (CT) on retinal cells under hypoxic conditions are not well understood. The aim of the present study was to explore how CT exerted its protective effects on retinal pigment epithelium (RPE) cells under hypoxic conditions induced by cobalt chloride (CoCl2). The effects of CT were investigated using a Cell Counting Kit-8 assay, Annexin V-FITC/PI staining, reverse transcription-quantitative PCR and western blotting in ARPE-19 cells. CT (10 and 20 µM) reduced the CoCl2-induced increase in vascular endothelial growth factor expression and hypoxia-inducible transcription factor-1α expression in ARPE-19 cells. Additionally, CT alleviated hypoxia-induced apoptosis by regulating Bcl-2 and Bax protein expression. CT treatment also reduced the increase in the mRNA levels of IL-6, IL-1β and TNF-α induced by CoCl2. In summary, CT may protect RPE cells against apoptosis and inflammation in CoCl2-induced hypoxia, and these results warrant further in vivo study into its value as a drug for treating hypoxic eye diseases. |
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AbstractList | The development of several retinal diseases is closely related to hypoxia. As a component of the Traditional Chinese medicine
Salvia miltiorrhiza
, the effects of cryptotanshinone (CT) on retinal cells under hypoxic conditions are not well understood. The aim of the present study was to explore how CT exerted its protective effects on retinal pigment epithelium (RPE) cells under hypoxic conditions induced by cobalt chloride (CoCl
2
). The effects of CT were investigated using a Cell Counting Kit-8 assay, Annexin V-FITC/PI staining, reverse transcription-quantitative PCR and western blotting in ARPE-19 cells. CT (10 and 20 µM) reduced the CoCl
2
-induced increase in vascular endothelial growth factor expression and hypoxia-inducible transcription factor-1α expression in ARPE-19 cells. Additionally, CT alleviated hypoxia-induced apoptosis by regulating Bcl-2 and Bax protein expression. CT treatment also reduced the increase in the mRNA levels of IL-6, IL-1β and TNF-α induced by CoCl
2
. In summary, CT may protect RPE cells against apoptosis and inflammation in CoCl
2
-induced hypoxia, and these results warrant further
in vivo
study into its value as a drug for treating hypoxic eye diseases. The development of several retinal diseases is closely related to hypoxia. As a component of the Traditional Chinese medicine Salvia miltiorrhiza, the effects of cryptotanshinone (CT) on retinal cells under hypoxic conditions are not well understood. The aim of the present study was to explore how CT exerted its protective effects on retinal pigment epithelium (RPE) cells under hypoxic conditions induced by cobalt chloride (CoCl2). The effects of CT were investigated using a Cell Counting Kit-8 assay, Annexin V-FITC/PI staining, reverse transcription-quantitative PCR and western blotting in ARPE-19 cells. CT (10 and 20 µM) reduced the CoCl2-induced increase in vascular endothelial growth factor expression and hypoxia-inducible transcription factor-1α expression in ARPE-19 cells. Additionally, CT alleviated hypoxia-induced apoptosis by regulating Bcl-2 and Bax protein expression. CT treatment also reduced the increase in the mRNA levels of IL-6, IL-1β and TNF-α induced by CoCl2. In summary, CT may protect RPE cells against apoptosis and inflammation in CoCl2-induced hypoxia, and these results warrant further in vivo study into its value as a drug for treating hypoxic eye diseases. |
Author | Liu, Weiming Lu, Peirong Gu, Yu Liu, Gaoqin Li, Xin |
AuthorAffiliation | 1 Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China 2 Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, Jiangsu 215006, P.R. China |
AuthorAffiliation_xml | – name: 2 Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, Jiangsu 215006, P.R. China – name: 1 Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China |
Author_xml | – sequence: 1 givenname: Yu surname: Gu fullname: Gu, Yu – sequence: 2 givenname: Weiming surname: Liu fullname: Liu, Weiming – sequence: 3 givenname: Gaoqin surname: Liu fullname: Liu, Gaoqin – sequence: 4 givenname: Xin surname: Li fullname: Li, Xin – sequence: 5 givenname: Peirong surname: Lu fullname: Lu, Peirong |
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Copyright | Copyright Spandidos Publications UK Ltd. 2021 Copyright: © Gu et al. 2021 |
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Snippet | The development of several retinal diseases is closely related to hypoxia. As a component of the Traditional Chinese medicine Salvia miltiorrhiza, the effects... The development of several retinal diseases is closely related to hypoxia. As a component of the Traditional Chinese medicine Salvia miltiorrhiza , the effects... |
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SubjectTerms | Alzheimer's disease Annexin V Antibodies Apoptosis BAX protein Bcl-2 protein Cobalt Cobalt chloride Cryptotanshinone Cytotoxicity Diabetic retinopathy Epithelium Experiments Eye diseases Hypoxia IL-1β Interleukin 6 Ischemia Metabolism Penicillin Proteins Retina Retinal pigment epithelium Reverse transcription Statistical analysis Traditional Chinese medicine Tumor necrosis factor-α Vascular endothelial growth factor Western blotting |
Title | Assessing the protective effects of cryptotanshinone on CoCl2-induced hypoxia in RPE cells |
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