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Recenzirano
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Liang, Jun; Xu, Li; Zhou, Feng; Liu, An‐min; Ge, Hong‐xing; Chen, Yuan‐yuan; Tu, Min
Journal of cellular biochemistry, January 2018, 2018-01-00, 20180101, Letnik: 119, Številka: 1Journal Article
ABSTRACT Osteoarthritis (OA) is characterized by progressive destruction of articular cartilage, resulting in significant disability. Chondrocytes present in various types of cartilage and are responsible for the growth and maintenance of the tissue. Over‐proliferation of human chondrocytes may contributes to OA pathological process. Previously, we revealed that miR‐127‐5p could inhibit the proliferation of human chondrocytes through osteopontin (OPN). In the present study, we used online tools to figure out several candidates lncRNAs which were potentially correlated with miR‐127‐5p. Through assessing the expression levels of the candidates lncRNAs, metastasis associated lung adenocarcinoma transcript 1 (MALAT1) was chosen as a further research subject. MALAT1 knockdown significantly repressed human OA chondrocyte proliferation, as well as the protein levels of OPN, p‐PI3K, and p‐Akt in OA chondrocytes. As verified by luciferase assays, MALAT1 directly bound to miR‐127‐5p to inhibit miR‐127‐5p expression. Then we achieved miR‐127‐5p inhibition through miR‐127‐5p inhibitor transfection; the miR‐127‐5p inhibition could promote chondrocyte proliferation, as well as the protein levels of OPN, p‐PI3K, and p‐Akt; in addition, the MALAT1 knockdown partially reversed the promotive effect of miR‐127‐5p inhibition on chondrocyte proliferation, OPN and PI3K/Akt signaling‐related protein levels. Taken together, MALAT1 could directly bind to miR‐127‐5p to inhibit its expression, so as to rescue OPN expression and promote chondrocyte proliferation through PI3K/Akt pathway. Targeting MALAT1 so as to rescue miR‐127‐5p expression in OA might help to inhibit chondrocyte proliferation through miR‐127‐5p‐mediated OPN regulation and downstream PI3K/Akt pathway. J. Cell. Biochem. 119: 431–439, 2018. © 2017 Wiley Periodicals, Inc. MALAT1 could directly bind to miR‐127‐5p to inhibit its expression, so as to rescue OPN expression and promote chondrocyte proliferation through PI3K/Akt pathway. Targeting MALAT1 so as to rescue miR‐127‐5p expression in OA might be a promising strategy in OA treatment.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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