Mechanotransduction is a context-dependent activator of TGF-β signaling in mesenchymal stem cells

Steven Vermeulen; Nadia Roumans; Floris Honig; Aurélie Carlier; Dennie G.A.J. Hebels; Aysegul Dede Eren; Peter ten Dijke; Aliaksei Vasilevich; Jan de Boer

doi:10.1016/j.biomaterials.2020.120331

Mechanotransduction is a context-dependent activator of TGF-β signaling in mesenchymal stem cells

Steven Vermeulen, Nadia Roumans, Floris Honig, Aurélie Carlier, Dennie G.A.J. Hebels, Aysegul Dede Eren, Peter ten Dijke, Aliaksei Vasilevich, Jan de Boer

Department of Life Sciences

Research output: Contribution to journal › Article › peer-review

27 Citations (SciVal)

Abstract

We previously found that surface topographies induce the expression of the Scxa gene, encoding Scleraxis in tenocytes. Because Scxa is a TGF-β responsive gene, we investigated the link between mechanotransduction and TGF-β signaling. We discovered that mesenchymal stem cells exposed to both micro-topographies and TGF-β2 display synergistic induction of SMAD phosphorylation and transcription of the TGF-β target genes SCX, a-SMA, and SOX9. Pharmacological perturbations revealed that Rho/ROCK/SRF signaling is required for this synergistic response. We further found an activation of the early response genes SRF and EGR1 during the early adaptation phase on micro-topographies, which coincided with higher expression of the TGF-β type-II receptor gene. Of interest, PKC activators Prostratin and Ingenol-3, known for inducing actin reorganization and activation of serum response elements, were able to mimic the topography-induced TGF-β response. These findings provide novel insights into the convergence of mechanobiology and TGF-β signaling, which can lead to improved culture protocols and therapeutic applications.

Original language	English
Article number	120331
Journal	Biomaterials
Volume	259
Early online date	15 Aug 2020
DOIs	https://doi.org/10.1016/j.biomaterials.2020.120331
Publication status	Published - 30 Nov 2020

Bibliographical note

Funding Information:
SV, NR, FH, DH, AD, AC, and JdB acknowledge the financial support of the Dutch province of Limburg. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 676338 . PtD is supported by the Cancer Genomics Center Netherlands (CGC.NL). AC gratefully acknowledges her VENI grant (number 15057 ) from the Dutch Science Foundation ( NWO ). We thank Freek Bouwman, Edwin Mariman, and Midory Thorikay for expert technical assistance.

Funding Information:
SV, NR, FH, DH, AD, AC, and JdB acknowledge the financial support of the Dutch province of Limburg. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk?odowska-Curie grant agreement No 676338. PtD is supported by the Cancer Genomics Center Netherlands (CGC.NL). AC gratefully acknowledges her VENI grant (number 15057) from the Dutch Science Foundation (NWO). We thank Freek Bouwman, Edwin Mariman, and Midory Thorikay for expert technical assistance.

Publisher Copyright:
© 2020

Keywords

Actin dynamics
Biomaterials
Mechanobiology
Mesenchymal stem cells
Scleraxis
TGF-β

ASJC Scopus subject areas

Biophysics
Bioengineering
Ceramics and Composites
Biomaterials
Mechanics of Materials

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10.1016/j.biomaterials.2020.120331

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title = "Mechanotransduction is a context-dependent activator of TGF-β signaling in mesenchymal stem cells",

abstract = "We previously found that surface topographies induce the expression of the Scxa gene, encoding Scleraxis in tenocytes. Because Scxa is a TGF-β responsive gene, we investigated the link between mechanotransduction and TGF-β signaling. We discovered that mesenchymal stem cells exposed to both micro-topographies and TGF-β2 display synergistic induction of SMAD phosphorylation and transcription of the TGF-β target genes SCX, a-SMA, and SOX9. Pharmacological perturbations revealed that Rho/ROCK/SRF signaling is required for this synergistic response. We further found an activation of the early response genes SRF and EGR1 during the early adaptation phase on micro-topographies, which coincided with higher expression of the TGF-β type-II receptor gene. Of interest, PKC activators Prostratin and Ingenol-3, known for inducing actin reorganization and activation of serum response elements, were able to mimic the topography-induced TGF-β response. These findings provide novel insights into the convergence of mechanobiology and TGF-β signaling, which can lead to improved culture protocols and therapeutic applications.",

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author = "Steven Vermeulen and Nadia Roumans and Floris Honig and Aur{\'e}lie Carlier and Hebels, {Dennie G.A.J.} and Eren, {Aysegul Dede} and Dijke, {Peter ten} and Aliaksei Vasilevich and {de Boer}, Jan",

note = "Funding Information: SV, NR, FH, DH, AD, AC, and JdB acknowledge the financial support of the Dutch province of Limburg. This project has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No 676338 . PtD is supported by the Cancer Genomics Center Netherlands (CGC.NL). AC gratefully acknowledges her VENI grant (number 15057 ) from the Dutch Science Foundation ( NWO ). We thank Freek Bouwman, Edwin Mariman, and Midory Thorikay for expert technical assistance. Funding Information: SV, NR, FH, DH, AD, AC, and JdB acknowledge the financial support of the Dutch province of Limburg. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk?odowska-Curie grant agreement No 676338. PtD is supported by the Cancer Genomics Center Netherlands (CGC.NL). AC gratefully acknowledges her VENI grant (number 15057) from the Dutch Science Foundation (NWO). We thank Freek Bouwman, Edwin Mariman, and Midory Thorikay for expert technical assistance. Publisher Copyright: {\textcopyright} 2020",

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AU - Vermeulen, Steven

AU - Roumans, Nadia

AU - Honig, Floris

AU - Carlier, Aurélie

AU - Hebels, Dennie G.A.J.

AU - Eren, Aysegul Dede

AU - Dijke, Peter ten

AU - Vasilevich, Aliaksei

AU - de Boer, Jan

N1 - Funding Information: SV, NR, FH, DH, AD, AC, and JdB acknowledge the financial support of the Dutch province of Limburg. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 676338 . PtD is supported by the Cancer Genomics Center Netherlands (CGC.NL). AC gratefully acknowledges her VENI grant (number 15057 ) from the Dutch Science Foundation ( NWO ). We thank Freek Bouwman, Edwin Mariman, and Midory Thorikay for expert technical assistance. Funding Information: SV, NR, FH, DH, AD, AC, and JdB acknowledge the financial support of the Dutch province of Limburg. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk?odowska-Curie grant agreement No 676338. PtD is supported by the Cancer Genomics Center Netherlands (CGC.NL). AC gratefully acknowledges her VENI grant (number 15057) from the Dutch Science Foundation (NWO). We thank Freek Bouwman, Edwin Mariman, and Midory Thorikay for expert technical assistance. Publisher Copyright: © 2020

PY - 2020/11/30

Y1 - 2020/11/30

N2 - We previously found that surface topographies induce the expression of the Scxa gene, encoding Scleraxis in tenocytes. Because Scxa is a TGF-β responsive gene, we investigated the link between mechanotransduction and TGF-β signaling. We discovered that mesenchymal stem cells exposed to both micro-topographies and TGF-β2 display synergistic induction of SMAD phosphorylation and transcription of the TGF-β target genes SCX, a-SMA, and SOX9. Pharmacological perturbations revealed that Rho/ROCK/SRF signaling is required for this synergistic response. We further found an activation of the early response genes SRF and EGR1 during the early adaptation phase on micro-topographies, which coincided with higher expression of the TGF-β type-II receptor gene. Of interest, PKC activators Prostratin and Ingenol-3, known for inducing actin reorganization and activation of serum response elements, were able to mimic the topography-induced TGF-β response. These findings provide novel insights into the convergence of mechanobiology and TGF-β signaling, which can lead to improved culture protocols and therapeutic applications.

AB - We previously found that surface topographies induce the expression of the Scxa gene, encoding Scleraxis in tenocytes. Because Scxa is a TGF-β responsive gene, we investigated the link between mechanotransduction and TGF-β signaling. We discovered that mesenchymal stem cells exposed to both micro-topographies and TGF-β2 display synergistic induction of SMAD phosphorylation and transcription of the TGF-β target genes SCX, a-SMA, and SOX9. Pharmacological perturbations revealed that Rho/ROCK/SRF signaling is required for this synergistic response. We further found an activation of the early response genes SRF and EGR1 during the early adaptation phase on micro-topographies, which coincided with higher expression of the TGF-β type-II receptor gene. Of interest, PKC activators Prostratin and Ingenol-3, known for inducing actin reorganization and activation of serum response elements, were able to mimic the topography-induced TGF-β response. These findings provide novel insights into the convergence of mechanobiology and TGF-β signaling, which can lead to improved culture protocols and therapeutic applications.

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KW - Biomaterials

KW - Mechanobiology

KW - Mesenchymal stem cells

KW - Scleraxis

KW - TGF-β

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SN - 0142-9612

VL - 259

JO - Biomaterials

JF - Biomaterials

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ER -

Mechanotransduction is a context-dependent activator of TGF-β signaling in mesenchymal stem cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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