Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways
Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PC...
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| Autor*in: |
Chen, Jin [verfasserIn] |
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E-Artikel |
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Englisch |
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2014 |
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© Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
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Enthalten in: Stem cell research & therapy - London : BioMed Central, 2010, 5(2014), 2 vom: 17. März |
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| Übergeordnetes Werk: |
volume:5 ; year:2014 ; number:2 ; day:17 ; month:03 |
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| DOI / URN: |
10.1186/scrt424 |
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SPR031212565 |
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| 520 | |a Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. | ||
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10.1186/scrt424 doi (DE-627)SPR031212565 (SPR)scrt424-e DE-627 ger DE-627 rakwb eng Chen, Jin verfasserin aut Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. Thrombin (dpeaa)DE-He213 Ethyl Pyruvate (dpeaa)DE-He213 Tris Buffer Saline With Tween (dpeaa)DE-He213 Human Bone Marrow MSCs (dpeaa)DE-He213 Surface Marker Profile (dpeaa)DE-He213 Ma, Yujie aut Wang, Zi aut Wang, Hengxiang aut Wang, Lisheng aut Xiao, Fengjun aut Wang, Hua aut Tan, Jianming aut Guo, Zikuan aut Enthalten in Stem cell research & therapy London : BioMed Central, 2010 5(2014), 2 vom: 17. März (DE-627)624251047 (DE-600)2548671-8 1757-6512 nnns volume:5 year:2014 number:2 day:17 month:03 https://dx.doi.org/10.1186/scrt424 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2014 2 17 03 |
| spelling |
10.1186/scrt424 doi (DE-627)SPR031212565 (SPR)scrt424-e DE-627 ger DE-627 rakwb eng Chen, Jin verfasserin aut Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. Thrombin (dpeaa)DE-He213 Ethyl Pyruvate (dpeaa)DE-He213 Tris Buffer Saline With Tween (dpeaa)DE-He213 Human Bone Marrow MSCs (dpeaa)DE-He213 Surface Marker Profile (dpeaa)DE-He213 Ma, Yujie aut Wang, Zi aut Wang, Hengxiang aut Wang, Lisheng aut Xiao, Fengjun aut Wang, Hua aut Tan, Jianming aut Guo, Zikuan aut Enthalten in Stem cell research & therapy London : BioMed Central, 2010 5(2014), 2 vom: 17. März (DE-627)624251047 (DE-600)2548671-8 1757-6512 nnns volume:5 year:2014 number:2 day:17 month:03 https://dx.doi.org/10.1186/scrt424 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2014 2 17 03 |
| allfields_unstemmed |
10.1186/scrt424 doi (DE-627)SPR031212565 (SPR)scrt424-e DE-627 ger DE-627 rakwb eng Chen, Jin verfasserin aut Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. Thrombin (dpeaa)DE-He213 Ethyl Pyruvate (dpeaa)DE-He213 Tris Buffer Saline With Tween (dpeaa)DE-He213 Human Bone Marrow MSCs (dpeaa)DE-He213 Surface Marker Profile (dpeaa)DE-He213 Ma, Yujie aut Wang, Zi aut Wang, Hengxiang aut Wang, Lisheng aut Xiao, Fengjun aut Wang, Hua aut Tan, Jianming aut Guo, Zikuan aut Enthalten in Stem cell research & therapy London : BioMed Central, 2010 5(2014), 2 vom: 17. März (DE-627)624251047 (DE-600)2548671-8 1757-6512 nnns volume:5 year:2014 number:2 day:17 month:03 https://dx.doi.org/10.1186/scrt424 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2014 2 17 03 |
| allfieldsGer |
10.1186/scrt424 doi (DE-627)SPR031212565 (SPR)scrt424-e DE-627 ger DE-627 rakwb eng Chen, Jin verfasserin aut Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. Thrombin (dpeaa)DE-He213 Ethyl Pyruvate (dpeaa)DE-He213 Tris Buffer Saline With Tween (dpeaa)DE-He213 Human Bone Marrow MSCs (dpeaa)DE-He213 Surface Marker Profile (dpeaa)DE-He213 Ma, Yujie aut Wang, Zi aut Wang, Hengxiang aut Wang, Lisheng aut Xiao, Fengjun aut Wang, Hua aut Tan, Jianming aut Guo, Zikuan aut Enthalten in Stem cell research & therapy London : BioMed Central, 2010 5(2014), 2 vom: 17. März (DE-627)624251047 (DE-600)2548671-8 1757-6512 nnns volume:5 year:2014 number:2 day:17 month:03 https://dx.doi.org/10.1186/scrt424 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2014 2 17 03 |
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10.1186/scrt424 doi (DE-627)SPR031212565 (SPR)scrt424-e DE-627 ger DE-627 rakwb eng Chen, Jin verfasserin aut Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. Thrombin (dpeaa)DE-He213 Ethyl Pyruvate (dpeaa)DE-He213 Tris Buffer Saline With Tween (dpeaa)DE-He213 Human Bone Marrow MSCs (dpeaa)DE-He213 Surface Marker Profile (dpeaa)DE-He213 Ma, Yujie aut Wang, Zi aut Wang, Hengxiang aut Wang, Lisheng aut Xiao, Fengjun aut Wang, Hua aut Tan, Jianming aut Guo, Zikuan aut Enthalten in Stem cell research & therapy London : BioMed Central, 2010 5(2014), 2 vom: 17. März (DE-627)624251047 (DE-600)2548671-8 1757-6512 nnns volume:5 year:2014 number:2 day:17 month:03 https://dx.doi.org/10.1186/scrt424 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2014 2 17 03 |
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thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways |
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Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways |
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Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
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Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
| abstract_unstemmed |
Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. The phenotypic and functional activities of thrombin-treated MSCs were also observed. Results PCR analysis showed that human bone marrow MSCs expressed two subtypes of PARs, PAR-1 and PAR-2. Thrombin treatment enhanced MSCs to express FN at mRNA and protein levels and promoted FN secretion by MSCs, accompanied by potent adherence to the culture plastic. Thrombin induced prompt phosphorylation of ERK 1/2 and NF kappa B p65 and the stimulatory effects of thrombin on FN secretion were blunted by specific inhibitors of these signaling molecules. Blockage to PAR-1 and PAR-2 partially abrogated thrombin-elicited FN secretion by MSCs and ERK 1/2 phosphorylation, whereas that of NF kappa B p65 was unaffected. Moreover, thrombin-treated MSCs maintained the phenotypic features, in vitro osteogenesis and adipogenesis capacities, and inhibitory activity on Phytohemagglutinin-induced allogeneic lymphocyte proliferation. Conclusions Thrombin could promote FN secretion by MSCs via PAR-mediated ERK 1/2 activation, while NF kappa B might be also involved in an undefined manner. © Chen et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
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Thrombin promotes fibronectin secretion by bone marrow mesenchymal stem cells via the protease-activated receptor mediated signalling pathways |
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Ma, Yujie Wang, Zi Wang, Hengxiang Wang, Lisheng Xiao, Fengjun Wang, Hua Tan, Jianming Guo, Zikuan |
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This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Introduction Fibronectin (FN) is commonly used in the development of serum-free media for the expansion of mesenchymal stem cells (MSCs). This study was aimed to observe if thrombin could stimulate FN secretion by human bone marrow MSCs and investigate the potential underlying mechanisms. Methods PCR was performed to detect the expression of the protease-activated receptors (PARs) in MSCs. After thrombin treatment, the expression level and secretion of FN were observed by RT-PCR, immunofluorescence staining and ELISA, respectively, and the activation of ERK1/2 and NF kappa B pathways was revealed by Western blotting, with or without pre-treatment of small-molecule blockers specific for PAR-1 and –2. 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