{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T01:47:42Z","timestamp":1789955262460,"version":"4.0.1"},"reference-count":56,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2007,11,15]],"date-time":"2007-11-15T00:00:00Z","timestamp":1195084800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cell Proliferation"],"published-print":{"date-parts":[[2007,12]]},"abstract":"<jats:p><jats:bold>Abstract.\u2003<\/jats:bold> Bone tissue in the adult is continuously being remodelled, and overall bone mass is maintained constant by the balance between osteoclastic bone resorption and osteoblastic bone formation. Adequate osteoblastic proliferation is essential for both appropriate formation and for regulation of resorption, and thereby the maintenance of bone remodelling equilibrium. <jats:italic>Objectives<\/jats:italic>: Here, we have investigated the roles of melastatin\u2010like transient receptor potential 6 and 7 (TRPM6, TRPM7), which are calcium (Ca<jats:sup>2+<\/jats:sup>) and magnesium (Mg<jats:sup>2+<\/jats:sup>) conducting channels, during proliferation of human osteoblasts. <jats:italic>Results<\/jats:italic>: Genetic expression of TRPM6 and TRPM7 was shown in human osteoblast\u2010like MG\u201063, SaOS and U2\u2010OS cells, and reduction of extracellular Mg<jats:sup>2+<\/jats:sup> or Ca<jats:sup>2+<\/jats:sup> led to a decrease of cell proliferation. Concomitant reduction of both ions further accentuated reduction of cell proliferation. Expression of TRPM7 channels was increased under conditions of reduced extracellular Mg<jats:sup>2+<\/jats:sup> and Ca<jats:sup>2+<\/jats:sup> levels whereas expression of TRPM6 was not modified, suggesting compensatory mechanisms afforded by TRPM7 in order to maintain intracellular ion homeostasis. Pre\u2010incubation of cells in reduced extracellular Mg<jats:sup>2+<\/jats:sup> conditions led to activation of Ca<jats:sup>2+<\/jats:sup> and Mg<jats:sup>2+<\/jats:sup> influx. Reduction of TRPM7 expression by specific siRNA prevented latter influx and inhibited cell proliferation. <jats:italic>Conclusions<\/jats:italic>: Our results indicate that extracellular Mg<jats:sup>2+<\/jats:sup> and Ca<jats:sup>2+<\/jats:sup> deficiency reduces the proliferation of human osteoblastic cells. Expression and activity of TRPM7 is modulated by extracellular Mg<jats:sup>2+<\/jats:sup> and Ca<jats:sup>2+<\/jats:sup> availability, indicating that TRPM7 channels are involved in intracellular ion homeostasis and proliferation of osteoblasts.<\/jats:p>","DOI":"10.1111\/j.1365-2184.2007.00476.x","type":"journal-article","created":{"date-parts":[[2007,11,17]],"date-time":"2007-11-17T07:23:31Z","timestamp":1195284211000},"page":"849-865","source":"Crossref","is-referenced-by-count":117,"title":["Importance of melastatin\u2010like transient receptor potential 7 and cations (magnesium, calcium) in human osteoblast\u2010like cell proliferation"],"prefix":"10.1111","volume":"40","author":[{"given":"E.","family":"Abed","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R.","family":"Moreau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,11,15]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0092-8674(03)01017-1"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1440-1681.2005.04251.x"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/jbmr.5650110504"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/35036035"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/8756-3282(93)90092-O"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1159\/000048929"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bone.2004.03.019"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0305252101"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/35077544"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1359\/jbmr.1999.14.7.1115"},{"key":"e_1_2_6_12_1","first-page":"178","article-title":"Calcium signals and calcium channels in osteoblastic cells","volume":"18","author":"Duncan RL","year":"1998","journal-title":"Semin. 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