Investigation of osteoclastogenic signalling of the RANKL substitute LIGHT
LIGHT (TNFSF14) is a member of the TNF superfamily and is known to substitute for RANKL to induce osteoclast differentiation. LIGHT binds HVEM and LTβR, but it is not known whether these receptors play a role in osteoclast formation or whether LIGHT acts via RANKL signalling pathways. We found that...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2013
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| _version_ | 1797063680868745216 |
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| author | Hemingway, F Kashima, T Knowles, H Athanasou, N |
| author_facet | Hemingway, F Kashima, T Knowles, H Athanasou, N |
| author_sort | Hemingway, F |
| collection | OXFORD |
| description | LIGHT (TNFSF14) is a member of the TNF superfamily and is known to substitute for RANKL to induce osteoclast differentiation. LIGHT binds HVEM and LTβR, but it is not known whether these receptors play a role in osteoclast formation or whether LIGHT acts via RANKL signalling pathways. We found that both RANKL and LIGHT strongly induced phosphorylation of Akt and NFκB but not JNK in mouse osteoclast precursor cells. The addition of an Akt inhibitor showed decreased osteoclast differentiation and resorption mediated by both RANKL and LIGHT. RT-PCR and FACS analysis showed that CD14+ human osteoclast precursors expressed HVEM and LTβR; expression levels of HVEM increased in the course of osteoclastogenesis and a decrease in LIGHT expression was associated with an increase in HVEM suggesting that there is a feedback loop related to this receptor. Our findings show that LIGHT is not inhibited by the soluble RANKL receptor OPG and that LIGHT is a potent osteoclastogenesis factor that activates the Akt, NFκB and JNK pathways. © 2013 Elsevier Inc. |
| first_indexed | 2024-03-06T21:03:23Z |
| format | Journal article |
| id | oxford-uuid:3b9f7897-93b6-46b2-810b-003298bad587 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:03:23Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:3b9f7897-93b6-46b2-810b-003298bad5872022-03-26T14:08:50ZInvestigation of osteoclastogenic signalling of the RANKL substitute LIGHTJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3b9f7897-93b6-46b2-810b-003298bad587EnglishSymplectic Elements at Oxford2013Hemingway, FKashima, TKnowles, HAthanasou, NLIGHT (TNFSF14) is a member of the TNF superfamily and is known to substitute for RANKL to induce osteoclast differentiation. LIGHT binds HVEM and LTβR, but it is not known whether these receptors play a role in osteoclast formation or whether LIGHT acts via RANKL signalling pathways. We found that both RANKL and LIGHT strongly induced phosphorylation of Akt and NFκB but not JNK in mouse osteoclast precursor cells. The addition of an Akt inhibitor showed decreased osteoclast differentiation and resorption mediated by both RANKL and LIGHT. RT-PCR and FACS analysis showed that CD14+ human osteoclast precursors expressed HVEM and LTβR; expression levels of HVEM increased in the course of osteoclastogenesis and a decrease in LIGHT expression was associated with an increase in HVEM suggesting that there is a feedback loop related to this receptor. Our findings show that LIGHT is not inhibited by the soluble RANKL receptor OPG and that LIGHT is a potent osteoclastogenesis factor that activates the Akt, NFκB and JNK pathways. © 2013 Elsevier Inc. |
| spellingShingle | Hemingway, F Kashima, T Knowles, H Athanasou, N Investigation of osteoclastogenic signalling of the RANKL substitute LIGHT |
| title | Investigation of osteoclastogenic signalling of the RANKL substitute LIGHT |
| title_full | Investigation of osteoclastogenic signalling of the RANKL substitute LIGHT |
| title_fullStr | Investigation of osteoclastogenic signalling of the RANKL substitute LIGHT |
| title_full_unstemmed | Investigation of osteoclastogenic signalling of the RANKL substitute LIGHT |
| title_short | Investigation of osteoclastogenic signalling of the RANKL substitute LIGHT |
| title_sort | investigation of osteoclastogenic signalling of the rankl substitute light |
| work_keys_str_mv | AT hemingwayf investigationofosteoclastogenicsignallingoftheranklsubstitutelight AT kashimat investigationofosteoclastogenicsignallingoftheranklsubstitutelight AT knowlesh investigationofosteoclastogenicsignallingoftheranklsubstitutelight AT athanasoun investigationofosteoclastogenicsignallingoftheranklsubstitutelight |