Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture system
Abstract The interplay between osteoblasts and osteoclasts (OCs) is a highly regulated and coordinated process essential for maintaining bone skeletal integrity and health. Disruption of this balance marks the onset of various bone disorders, such as osteoporosis. In our previous study, we demonstra...
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2025-08-01
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| Series: | Cell Communication and Signaling |
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| Online Access: | https://doi.org/10.1186/s12964-025-02324-7 |
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| author | Sara Reis Moura Jacob Bastholm Olesen Martin Lindberg-Larsen Mário Adolfo Barbosa Kent Søe Maria Inês Almeida |
| author_facet | Sara Reis Moura Jacob Bastholm Olesen Martin Lindberg-Larsen Mário Adolfo Barbosa Kent Søe Maria Inês Almeida |
| author_sort | Sara Reis Moura |
| collection | DOAJ |
| description | Abstract The interplay between osteoblasts and osteoclasts (OCs) is a highly regulated and coordinated process essential for maintaining bone skeletal integrity and health. Disruption of this balance marks the onset of various bone disorders, such as osteoporosis. In our previous study, we demonstrated that non-coding RNAs (ncRNAs) were able to regulate OC behaviour. Specifically, the long ncRNA DLEU1 and the small ncRNA miR-16 independently control OCs multinuclearity, fusion and resorption. Herein, we investigate whether OCs modulated with ncRNAs impact the behaviour of osteoblast lineage cells (OBs) in a biomimetic co-culture system. Communication between OB and OC comprises numerous molecules and processes, including the secretion of coupling factors, release of matrix-derived signals during bone resorption, and exposure of previously occluded proteins within the bone resorption cavities. Firstly, we explored how ncRNAs influence the composition of the secretome and the remodelling of resorption cavities left by the ncRNA-engineered-OCs on OBs responses. In our OC/OB co-culture system, conducted in the absence of FBS and exogenous RANKL, we observed changes in the levels of secreted factors 72 h after DLEU1 levels were decreased in mature OCs (siDLEU1-OC condition), specifically in RANKL, leptin, osteocalcin, MMP7, MMP8, TIMP1 and TIMP2. Meanwhile, leptin and MMP8 levels were increased in the OC/OB co-culture when miR-16 was overexpressed in OCs (miR-16-OC condition). The results also show that OBs co-cultured with siDLEU1-OCs exhibited impaired migratory capacity and increased ALP levels, while OBs co-cultured with miR-16-OCs displayed a tendency towards decreased elongation. On bone slices, OBs persisted for a longer duration in the trenches created by siDLEU1-OCs. Besides altering OBs behaviour, silencing of DLEU1 reduced the area of each individual trench cavity, while miR-16 overexpression significantly hindered the total eroded surface and inhibited trench formation in the OC/OB co-culture system. Overall, these findings identify DLEU1 and miR-16 as key regulators in the interplay between human primary OBs and OCs, highlighting the potential of targeting ncRNAs in OCs to modulate their paracrine and matrix-mediated effects on OBs. |
| format | Article |
| id | doaj-art-3ade20bf22004b88afd56c3094a1caa9 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-08-01 |
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| spelling | doaj-art-3ade20bf22004b88afd56c3094a1caa92025-08-20T03:46:15ZengBMCCell Communication and Signaling1478-811X2025-08-0123111510.1186/s12964-025-02324-7Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture systemSara Reis Moura0Jacob Bastholm Olesen1Martin Lindberg-Larsen2Mário Adolfo Barbosa3Kent Søe4Maria Inês Almeida5i3S - Instituto de Investigação e Inovação em Saúde, Universidade do PortoDepartment of Pathology, Odense University HospitalDepartment of Orthopaedic Surgery and Traumatology, Odense University Hospitali3S - Instituto de Investigação e Inovação em Saúde, Universidade do PortoDepartment of Pathology, Odense University Hospitali3S - Instituto de Investigação e Inovação em Saúde, Universidade do PortoAbstract The interplay between osteoblasts and osteoclasts (OCs) is a highly regulated and coordinated process essential for maintaining bone skeletal integrity and health. Disruption of this balance marks the onset of various bone disorders, such as osteoporosis. In our previous study, we demonstrated that non-coding RNAs (ncRNAs) were able to regulate OC behaviour. Specifically, the long ncRNA DLEU1 and the small ncRNA miR-16 independently control OCs multinuclearity, fusion and resorption. Herein, we investigate whether OCs modulated with ncRNAs impact the behaviour of osteoblast lineage cells (OBs) in a biomimetic co-culture system. Communication between OB and OC comprises numerous molecules and processes, including the secretion of coupling factors, release of matrix-derived signals during bone resorption, and exposure of previously occluded proteins within the bone resorption cavities. Firstly, we explored how ncRNAs influence the composition of the secretome and the remodelling of resorption cavities left by the ncRNA-engineered-OCs on OBs responses. In our OC/OB co-culture system, conducted in the absence of FBS and exogenous RANKL, we observed changes in the levels of secreted factors 72 h after DLEU1 levels were decreased in mature OCs (siDLEU1-OC condition), specifically in RANKL, leptin, osteocalcin, MMP7, MMP8, TIMP1 and TIMP2. Meanwhile, leptin and MMP8 levels were increased in the OC/OB co-culture when miR-16 was overexpressed in OCs (miR-16-OC condition). The results also show that OBs co-cultured with siDLEU1-OCs exhibited impaired migratory capacity and increased ALP levels, while OBs co-cultured with miR-16-OCs displayed a tendency towards decreased elongation. On bone slices, OBs persisted for a longer duration in the trenches created by siDLEU1-OCs. Besides altering OBs behaviour, silencing of DLEU1 reduced the area of each individual trench cavity, while miR-16 overexpression significantly hindered the total eroded surface and inhibited trench formation in the OC/OB co-culture system. Overall, these findings identify DLEU1 and miR-16 as key regulators in the interplay between human primary OBs and OCs, highlighting the potential of targeting ncRNAs in OCs to modulate their paracrine and matrix-mediated effects on OBs.https://doi.org/10.1186/s12964-025-02324-7Bone remodellingLncRNAMiRNACytokines/chemokinesExtracellular matrixMolecular engineering |
| spellingShingle | Sara Reis Moura Jacob Bastholm Olesen Martin Lindberg-Larsen Mário Adolfo Barbosa Kent Søe Maria Inês Almeida Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture system Cell Communication and Signaling Bone remodelling LncRNA MiRNA Cytokines/chemokines Extracellular matrix Molecular engineering |
| title | Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture system |
| title_full | Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture system |
| title_fullStr | Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture system |
| title_full_unstemmed | Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture system |
| title_short | Non-coding RNA modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co-culture system |
| title_sort | non coding rna modulation in osteoclasts and its implications for osteoblast lineage cell behavior in a co culture system |
| topic | Bone remodelling LncRNA MiRNA Cytokines/chemokines Extracellular matrix Molecular engineering |
| url | https://doi.org/10.1186/s12964-025-02324-7 |
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