1
|
Govoni M, Muscari C, Bonafè F, Morselli PG, Cortesi M, Dallari D, Giordano E. A brief very-low oxygen tension regimen is sufficient for the early chondrogenic commitment of human adipose-derived mesenchymal stem cells. Adv Med Sci 2021; 66:98-104. [PMID: 33461101 DOI: 10.1016/j.advms.2020.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 10/19/2020] [Accepted: 12/23/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE The aim of this study was to evaluate the effects exerted over chondrogenic commitment of human adipose-derived mesenchymal stem cells (ADSCs) by a very low oxygen tension (<1% pO2). MATERIALS/METHODS Cell morphology, mRNA levels of chondrocyte-specific marker genes and the involvement of p38 MAPK signalling were monitored in human ADSCs under a very low oxygen tension. RESULTS Cell morphology was significantly changed after two days of hypoxic preconditioning when they featured as elongated spindle-shaped cells. SRY-box containing gene 9, aggrecan and collagen type II mRNA levels were enhanced under severe hypoxic culture conditions. Moreover, the inhibition of p38 MAPK resulted in a substantial reduction in transcription of the above-mentioned specific genes, proving the pivotal role of this pathway in the transcriptional regulation of chondrogenesis. CONCLUSIONS Here, we propose a protocol showing the early commitment of stem cells towards the chondrogenic phenotype in only 2 days of culture via a very low hypoxic environment, in the absence of growth factors added in the culture medium.
Collapse
|
2
|
Zamagni A, Pasini A, Pirini F, Ravaioli S, Giordano E, Tesei A, Calistri D, Ulivi P, Fabbri F, Foca F, Delmonte A, Molinari C. CDKN1A upregulation and cisplatin‑pemetrexed resistance in non‑small cell lung cancer cells. Int J Oncol 2020; 56:1574-1584. [PMID: 32236605 PMCID: PMC7170038 DOI: 10.3892/ijo.2020.5024] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 02/27/2020] [Indexed: 01/10/2023] Open
Abstract
Cisplatin-pemetrexed is a frequently adopted first-line treatment for patients with advanced non-small cell lung cancer (NSCLC) ineligible for biological therapy, notwithstanding its limited efficacy. In the present study, the RAL cell line, an epidermal growth factor receptor (EGFR)-wild-type, p53- and KRAS-mutated model of NSCLC, was used to investigate novel biomarkers of resistance to this treatment. Cells were analyzed 96 h (96 h-post wo) and 21 days (21 days-post wo) after the combined treatment washout. Following an initial moderate sensitivity to the treatment, the cell growth proliferative capability had fully recovered. Gene expression analysis of the resistant surviving cells revealed a significant upregulation of CDKN1A expression in the cells at 96-h post-wo and, although to a lesser extent, in the cells at 21 days-post wo, accompanied by an enrichment of acetylated histone H3 in its promoter region. CDKN1A was also upregulated at the protein level, being mainly detected in the cytoplasm of the cells at 96 h-post wo. A marked increase in the number of apoptotic cells, together with a significant G1 phase block, were observed at 96-h post wo in the cells in which CDKN1A was knocked down, suggesting its involvement in the modulation of the response of RAL cells to the drug combination. On the whole, these data suggest that CDKN1A plays a role in the response to the cisplatin-pemetrexed combination in advanced KRAS-mutated NSCLC, thus suggesting that it may be used as a promising predictive marker.
Collapse
Affiliation(s)
- Alice Zamagni
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Alice Pasini
- Laboratory of Cellular and Molecular Engineering 'S. Cavalcanti', Department of Electrical, Electronic and Information Engineering 'G. Marconi' (DEI), University of Bologna, Campus of Cesena, 47522 Cesena, Italy
| | - Francesca Pirini
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Sara Ravaioli
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Emanuele Giordano
- Laboratory of Cellular and Molecular Engineering 'S. Cavalcanti', Department of Electrical, Electronic and Information Engineering 'G. Marconi' (DEI), University of Bologna, Campus of Cesena, 47522 Cesena, Italy
| | - Anna Tesei
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Daniele Calistri
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Paola Ulivi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Francesco Fabbri
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Flavia Foca
- Unit of Biostatistics and Clinical Trials, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Angelo Delmonte
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| | - Chiara Molinari
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
| |
Collapse
|
3
|
Pianezzi E, Altomare C, Bolis S, Balbi C, Torre T, Rinaldi A, Camici GG, Barile L, Vassalli G. Role of somatic cell sources in the maturation degree of human induced pluripotent stem cell-derived cardiomyocytes. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1867:118538. [PMID: 31472168 DOI: 10.1016/j.bbamcr.2019.118538] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 08/27/2019] [Accepted: 08/27/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Induced pluripotent stem cell (iPSC)-derived cardiomyocytes (iPSC-CMs) are a unique source of human cardiomyocytes for cardiac disease modeling. Incomplete functional maturation remains a major limitation, however. One of the determinants of iPSC-CM maturation is somatic cell origin. We therefore compared iPSC-CMs derived from different somatic cell sources. METHODS Cardiac-derived mesenchymal progenitor cells (CPCs), bone marrow-derived mesenchymal stem cells (BMCs), and human dermal fibroblasts (HDFs) from same patients were reprogrammed into iPSCs and differentiated into iPSC-CMs. Expression of cardiac-specific genes, caffeine-responsive cells, and electrophysiological properties of differentiated cells were analyzed. To assess the contribution of epigenetic memory toward differences in gene expression observed during cardiac differentiation, DNA methylation patterns were determined in the early mesodermal cardiac promoter NKX2-5 and KCNQ1, which encodes for the pore-forming α-subunit of the slow component of delayed-rectifier potassium current (IKs). RESULTS Cardiac genes (MYH6, TNNI3, KCNQ1, KCNE1) were upregulated in CPC-vs. BMC- and HDF-iPSC-CMs. At early differentiation stages, CPC-iPSC-CMs displayed higher numbers of caffeine-responsive cells than BMC- and HDF-iPSC-CMs. The hERG1 (KV11.1) blocker, E4031, followed by the IKs blocker, JNJ303, increased extracellular field potential duration in CPC-iPSC-CMs to a greater extent than in BMC- and HDF-iPSC-CMs. The promoter region of NKX2-5 was more highly methylated in BMCs and HDFs compared to CPCs, and to a lesser extent in BMC-iPSCs compared to CPC-iPSCs. CONCLUSIONS These results suggest that human iPSCs from cardiac somatic cell sources may display enhanced capacity toward cardiac re-differentiation compared to non-cardiac cell sources, and that epigenetic mechanisms may play a role in this regard.
Collapse
Affiliation(s)
- Enea Pianezzi
- Laboratory of Cellular and Molecular Cardiology, Fondazione Cardiocentro Ticino and Foundation for Cardiovascular Research and Education (FCRE), 6900 Lugano, Switzerland
| | - Claudia Altomare
- Laboratory of Cellular and Molecular Cardiology, Fondazione Cardiocentro Ticino and Foundation for Cardiovascular Research and Education (FCRE), 6900 Lugano, Switzerland
| | - Sara Bolis
- Laboratory of Cellular and Molecular Cardiology, Fondazione Cardiocentro Ticino and Foundation for Cardiovascular Research and Education (FCRE), 6900 Lugano, Switzerland
| | - Carolina Balbi
- Laboratory of Cellular and Molecular Cardiology, Fondazione Cardiocentro Ticino and Foundation for Cardiovascular Research and Education (FCRE), 6900 Lugano, Switzerland
| | - Tiziano Torre
- Laboratory of Cellular and Molecular Cardiology, Fondazione Cardiocentro Ticino and Foundation for Cardiovascular Research and Education (FCRE), 6900 Lugano, Switzerland
| | - Andrea Rinaldi
- Istituto di Ricerca in Biomedicina (IRB), 6500 Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana (USI), 6900 Lugano, Switzerland
| | - Giovanni G Camici
- Center for Molecular Cardiology, University of Zürich, 8001 Zürich, Switzerland
| | - Lucio Barile
- Laboratory of Cellular and Molecular Cardiology, Fondazione Cardiocentro Ticino and Foundation for Cardiovascular Research and Education (FCRE), 6900 Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana (USI), 6900 Lugano, Switzerland
| | - Giuseppe Vassalli
- Laboratory of Cellular and Molecular Cardiology, Fondazione Cardiocentro Ticino and Foundation for Cardiovascular Research and Education (FCRE), 6900 Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana (USI), 6900 Lugano, Switzerland; Center for Molecular Cardiology, University of Zürich, 8001 Zürich, Switzerland.
| |
Collapse
|
4
|
Fabbri M, Guidotti G, Soccio M, Lotti N, Govoni M, Giordano E, Gazzano M, Gamberini R, Rimini B, Munari A. Novel biocompatible PBS-based random copolymers containing PEG-like sequences for biomedical applications: From drug delivery to tissue engineering. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.04.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
5
|
Jiang C, Gong F. MiR-148a promotes myocardial differentiation of human bone mesenchymal stromal cells via DNA methyltransferase 1 (DNMT1). Cell Biol Int 2018; 42:913-922. [PMID: 28656724 DOI: 10.1002/cbin.10813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 06/24/2017] [Indexed: 11/08/2022]
Abstract
MicroRNAs have potential to modulate the differentiation of stem cells. In previous study, we found that miR-148a was up-regulated in myocardial differentiation of human bone mesenchymal stromal cells (hBMSCs) induced by 5'-azacytidine. However, the role of miR-148a in regulating this process still remains unclear. In this study, we investigated the function and molecular mechanism of miR-148a in myocardial differentiation of hBMSCs. We found that miR-148a was significantly increased while DNA methyltransferase 1 (DNMT1) was significantly decreased in myocardial differentiation of hBMSCs. Then, the dual luciferase reporter assays method indicated that DNMT1 was the direct target of miR-148a. In addition, we showed that up-regulation of miR-148a could enhance myocardial differentiation of hBMSCs, while down-regulation of miR-148a could inhibit myocardial differentiation process. Moreover, knockdown of DNMT1 could block the role of miR-148a in promoting myocardial differentiation of hBMSCs. Finally, MiR-148a acted on methylation level of GATA-4 and knockdown of DNMT1 could block this function. Therefore, our results indicate that miR-148a plays a vital role in regulating myocardial differentiation of hBMSCs by targeting DNMT1.
Collapse
Affiliation(s)
- Changke Jiang
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, 439 Xuanhua Road, Yongchuan, Chongqing, 402160, China
| | - Fang Gong
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, 439 Xuanhua Road, Yongchuan, Chongqing, 402160, China
| |
Collapse
|
6
|
De Falco E, Bordin A, Scaccia E, Pagano F, Ibrahim M, Schirone L, Angelini F, Palmerio S, Madonna M, Fianchini L, Chimenti I, Sciarretta S, Frati G. Histone acetylation favours the cardiovascular commitment of adipose tissue-derived stromal cells. Int J Cardiol 2017; 243:421-423. [PMID: 28610961 DOI: 10.1016/j.ijcard.2017.05.112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/08/2017] [Accepted: 05/31/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Although adipose stromal cells (ASCs) retain the ability to transdifferentiate at low rate towards the cardiac lineage, the potential mechanisms underlying such process have still to be elucidated. METHODS Since chromatin state modifications are involved in several processes regulating the cellular cell fate commitment, we aimed at evaluating the role of histone protein acetylation in the cardiovascular-like transdifferentiation of ASCs. RESULTS We found a clear increase of histone 3 acetylation status paralleled by a significant upregulation of cardiac TnI gene expression, in ASCs treated with the conditioned medium of primary cardiomyocyte cell cultures for 72h. This result suggests that histone acetylation contributes to the transdifferentiation of ASCs towards the cardiac lineage. In order to directly test this hypothesis, ASCs cultured with regular medium were treated with SAHA, a pan histone deacetylase inhibitor. We found that SAHA enhanced the cardiac permissive state of ASCs, increasing both mRNA and protein expression of cardiovascular genes, particularly cTnI. This suggests that histone acetylation induction is sufficient to promote cardiovascular transdifferentiation. CONCLUSIONS The control of ASC fate by epigenetic regulators might be an interesting tool to boost both cardiac commitment and regenerative capacities of ASCs.
Collapse
Affiliation(s)
- Elena De Falco
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Antonella Bordin
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Eleonora Scaccia
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Francesca Pagano
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Mohsen Ibrahim
- Division of Thoracic Surgery, Department of Medical-Surgical Science and Translational Medicine, "Sapienza" University of Rome, S. Andrea Hospital, via di Grottarossa 1035, 00189, Rome, Italy
| | - Leonardo Schirone
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Francesco Angelini
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Silvia Palmerio
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Michele Madonna
- Department of AngioCardioNeurology, IRCCS NeuroMed, 86077 Pozzilli, IS, Italy
| | - Luca Fianchini
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Isotta Chimenti
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Sebastiano Sciarretta
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy; Department of AngioCardioNeurology, IRCCS NeuroMed, 86077 Pozzilli, IS, Italy.
| | - Giacomo Frati
- Department of Medical-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, C.so della Repubblica 79, 04100 Latina, Italy; Department of AngioCardioNeurology, IRCCS NeuroMed, 86077 Pozzilli, IS, Italy
| |
Collapse
|
7
|
Govoni M, Berardi AC, Muscari C, Campardelli R, Bonafè F, Guarnieri C, Reverchon E, Giordano E, Maffulli N, Della Porta G. * An Engineered Multiphase Three-Dimensional Microenvironment to Ensure the Controlled Delivery of Cyclic Strain and Human Growth Differentiation Factor 5 for the Tenogenic Commitment of Human Bone Marrow Mesenchymal Stem Cells. Tissue Eng Part A 2017; 23:811-822. [PMID: 28401805 DOI: 10.1089/ten.tea.2016.0407] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
At present, injuries or rupture of tendons are treated by surgical repair or conservative approaches with unpredictable clinical outcome. Alternative strategies to repair tendon defects without the undesirable side effects associated with the current options are needed. With this in mind, a tissue engineering approach has gained considerable attention as a promising strategy. Here we investigated a synthetic three-dimensional (3D) microenvironment able to interact with stem cells and inducing, via coupled biochemical and physical signals, their early commitment toward the tenogenic lineage. This multiphase 3D construct consisted of a braided hyaluronate elastic band merged with human bone marrow mesenchymal stem cells (hBMSCs) and poly-lactic-co-glycolic acid microcarriers loaded with human growth differentiation factor 5 (hGDF-5) by means of fibrin hydrogel. The multiphase structure allowed hBMSC culture under cyclic strain within a microenvironment where a controlled amount of hGDF-5 was regularly delivered. The cooperative biochemical and physical stimuli induced significantly increased expression of tenogenic markers, such as collagen type I and III, decorin, scleraxis, and tenascin-C, within only 3 days of dynamic hBMSC culture. This approach opens exciting perspectives for future development of engineered tendon tissue substitutes.
Collapse
Affiliation(s)
- Marco Govoni
- 1 Health Sciences and Technologies-Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna , Bologna, Italy
| | - Anna Concetta Berardi
- 2 Laboratory "Stem Cells" U.O.C. Laboratory of Immunohematology and Transfusion Center , "Spirito Santo" Hospital, Pescara, Italy
| | - Claudio Muscari
- 1 Health Sciences and Technologies-Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna , Bologna, Italy .,3 Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna , Bologna, Italy
| | - Roberta Campardelli
- 4 Department of Industrial Engineering, University of Salerno , Fisciano, Italy
| | - Francesca Bonafè
- 3 Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna , Bologna, Italy
| | - Carlo Guarnieri
- 1 Health Sciences and Technologies-Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna , Bologna, Italy .,3 Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna , Bologna, Italy
| | - Ernesto Reverchon
- 4 Department of Industrial Engineering, University of Salerno , Fisciano, Italy
| | - Emanuele Giordano
- 1 Health Sciences and Technologies-Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna , Bologna, Italy .,5 Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi" (DEI), University of Bologna , Cesena, Italy .,6 Advanced Research Center on Electronic Systems (ARCES), University of Bologna , Bologna, Italy
| | - Nicola Maffulli
- 7 Department of Medicine, Surgery and Dentistry, University of Salerno , Baronissi, Italy
| | - Giovanna Della Porta
- 4 Department of Industrial Engineering, University of Salerno , Fisciano, Italy .,7 Department of Medicine, Surgery and Dentistry, University of Salerno , Baronissi, Italy
| |
Collapse
|
8
|
Yi Q, Xu H, Yang K, Wang Y, Tan B, Tian J, Zhu J. Islet-1 induces the differentiation of mesenchymal stem cells into cardiomyocyte-like cells through the regulation of Gcn5 and DNMT-1. Mol Med Rep 2017; 15:2511-2520. [PMID: 28447752 PMCID: PMC5428324 DOI: 10.3892/mmr.2017.6343] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 02/09/2017] [Indexed: 12/18/2022] Open
Abstract
Previous studies from this group demonstrated that insulin gene enhancer binding protein ISL-1 (Islet-1) specifically induces the differentiation of mesenchymal stem cells (MSCs) into cardiomyocyte-like cells through histone acetylation. However, the underlying mechanisms remain unclear. In the present study, the role of the histone acetylation and DNA methylation on the regulatory mechanism of the Islet-1 was further investigated by methylation-specific polymerase chain reaction (PCR), chromatin immunoprecipitation quantitative PCR and western blot analysis. The results demonstrated that Islet-1 upregulated expression of general control of amino acid biosynthesis protein 5 (Gcn5) and enhanced the binding of Gcn5 to the promoters of GATA binding protein 4 (GATA4) and NK2 homeobox 5 (Nkx2.5). In addition, Islet-1 downregulated DNA methyltransferase (DNMT)-1 expression and reduced its binding to the GATA4 promoter. In contrast, the amount of DNMT-1 binding on Nkx2.5 did not match the expression trend. Therefore, it was concluded that Islet-1 may influence the histone acetylation and DNA methylation of GATA4 promoter region via Gcn5 and DNMT-1 during the MSC differentiation into cardiomyocyte-like cells, thus prompting the expression of GATA4. The Nkx2.5 was likely only affected by histone acetylation instead of DNA methylation. The present study demonstrated that Islet-1 induces the differentiation of mesenchymal stem cells into cardiomyocyte-like cells through a specific interaction between histone acetylation and DNA methylation on regulating GATA4.
Collapse
Affiliation(s)
- Qin Yi
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Hao Xu
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Ke Yang
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Yue Wang
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Bin Tan
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Jie Tian
- Cardiovascular Department (Internal Medicine), Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Jing Zhu
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| |
Collapse
|
9
|
Xu H, Yi Q, Yang C, Wang Y, Tian J, Zhu J. Histone modifications interact with DNA methylation at the GATA4 promoter during differentiation of mesenchymal stem cells into cardiomyocyte-like cells. Cell Prolif 2016; 49:315-29. [PMID: 27117983 DOI: 10.1111/cpr.12253] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 02/29/2016] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES A previous study of ours confirmed that Islet-1 specifically induces differentiation of MSCs into cardiomyocytes, and that one of the mechanisms underlying that process is regulation of histone acetylation. Here, we further explore the mechanism of MSC differentiation into cardiomyocytes from the perspective of interactions between epigenetic modifications. MATERIALS AND METHODS We used lentiviral vectors to overexpress Islet-1 in MSCs, and ChIP-qPCR, MSP and BSP were performed to detect levels of histone acetylation/methylation and DNA methylation in the GATA4 and Nkx2.5 promoters. To further explore relationships between these epigenetic modifications, we used 5-aza or TSA to interfere with DNA methylation and histone acetylation, respectively, and detected effects on the other two modifications. RESULTS Histone acetylation level increased and its methylation level decreased at GATA4 and Nkx2.5 promoters; DNA methylation level was reduced at the GATA4 promoter but did not change at the Nkx2.5 promoter. Furthermore, 5-aza increased histone acetylation level and reduced its methylation level at the GATA4 promoter but had no effect on the Nkx2.5 promoter; TSA reduced histone methylation and DNA methylation levels at the GATA4 promoter, but it only reduced histone methylation level at the Nkx2.5 promoter. CONCLUSIONS Histone acetylation/methylation and DNA methylation were both involved in regulating GATA4 expression, but Nkx2.5 expression was not regulated by DNA methylation. These three modifications had high correlation with each other during regulation of GATA4 and produced a regulation loop at the GATA4 promoter.
Collapse
Affiliation(s)
- Hao Xu
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Qin Yi
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Chunmei Yang
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Yue Wang
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Jie Tian
- Cardiovascular Department (Internal Medicine), Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Jing Zhu
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| |
Collapse
|
10
|
Fabbri M, Gigli M, Costa M, Govoni M, Seri P, Lotti N, Giordano E, Munari A, Gamberini R, Rimini B, Neretti G, Cristofolini A, Borghi CA. The effect of plasma surface modification on the biodegradation rate and biocompatibility of a poly(butylene succinate)-based copolymer. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.09.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
11
|
The potential of GMP-compliant platelet lysate to induce a permissive state for cardiovascular transdifferentiation in human mediastinal adipose tissue-derived mesenchymal stem cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:162439. [PMID: 26495284 PMCID: PMC4606096 DOI: 10.1155/2015/162439] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 06/04/2015] [Accepted: 06/10/2015] [Indexed: 01/13/2023]
Abstract
Human adipose tissue-derived mesenchymal stem cells (ADMSCs) are considered eligible candidates for cardiovascular stem cell therapy applications due to their cardiac transdifferentiation potential and immunotolerance. Over the years, the in vitro culture of ADMSCs by platelet lysate (PL), a hemoderivate containing numerous growth factors and cytokines derived from platelet pools, has allowed achieving a safe and reproducible methodology to obtain high cell yield prior to clinical administration. Nevertheless, the biological properties of PL are still to be fully elucidated. In this brief report we show the potential ability of PL to induce a permissive state of cardiac-like transdifferentiation and to cause epigenetic modifications. RTPCR results indicate an upregulation of Cx43, SMA, c-kit, and Thy-1 confirmed by immunofluorescence staining, compared to standard cultures with foetal bovine serum. Moreover, PL-cultured ADMSCs exhibit a remarkable increase of both acetylated histones 3 and 4, with a patient-dependent time trend, and methylation at lysine 9 on histone 3 preceding the acetylation. Expression levels of p300 and SIRT-1, two major regulators of histone 3, are also upregulated after treatment with PL. In conclusion, PL could unravel novel biological properties beyond its routine employment in noncardiac applications, providing new insights into the plasticity of human ADMSCs.
Collapse
|
12
|
Savi M, Bocchi L, Fiumana E, Karam JP, Frati C, Bonafé F, Cavalli S, Morselli PG, Guarnieri C, Caldarera CM, Muscari C, Montero-Menei CN, Stilli D, Quaini F, Musso E. Enhanced engraftment and repairing ability of human adipose-derived stem cells, conveyed by pharmacologically active microcarriers continuously releasing HGF and IGF-1, in healing myocardial infarction in rats. J Biomed Mater Res A 2015; 103:3012-25. [DOI: 10.1002/jbm.a.35442] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 02/09/2015] [Accepted: 02/19/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Monia Savi
- Department of Life Sciences; University of Parma; Parco Area delle Scienze 11/A 43124 Parma Italy
| | - Leonardo Bocchi
- Department of Life Sciences; University of Parma; Parco Area delle Scienze 11/A 43124 Parma Italy
| | - Emanuela Fiumana
- National Institute for Cardiovascular Research; Bologna Italy
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Via Irnerio 48, 40126 Bologna Italy
| | - Jean-Pierre Karam
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Via Irnerio 48, 40126 Bologna Italy
- UMR S-1066 F-49933; LUNAM University; Angers France
- INSERM U1066; MINT “Micro Et Nanomédecines Biomimétiques” F-49933; Angers France
| | - Caterina Frati
- Department of Clinical and Experimental Medicine; University of Parma; Via A. Gramsci 14 43126 Parma Italy
| | - Francesca Bonafé
- National Institute for Cardiovascular Research; Bologna Italy
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Via Irnerio 48, 40126 Bologna Italy
| | - Stefano Cavalli
- Department of Clinical and Experimental Medicine; University of Parma; Via A. Gramsci 14 43126 Parma Italy
| | - Paolo G. Morselli
- Department of Specialist; Diagnostic and Experimental Medicine, University of Bologna; Bologna Italy
| | - Carlo Guarnieri
- National Institute for Cardiovascular Research; Bologna Italy
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Via Irnerio 48, 40126 Bologna Italy
| | - Claudio M. Caldarera
- National Institute for Cardiovascular Research; Bologna Italy
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Via Irnerio 48, 40126 Bologna Italy
| | - Claudio Muscari
- National Institute for Cardiovascular Research; Bologna Italy
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Via Irnerio 48, 40126 Bologna Italy
| | - Claudia N. Montero-Menei
- UMR S-1066 F-49933; LUNAM University; Angers France
- INSERM U1066; MINT “Micro Et Nanomédecines Biomimétiques” F-49933; Angers France
| | - Donatella Stilli
- Department of Life Sciences; University of Parma; Parco Area delle Scienze 11/A 43124 Parma Italy
- National Institute for Cardiovascular Research; Bologna Italy
| | - Federico Quaini
- National Institute for Cardiovascular Research; Bologna Italy
- Department of Clinical and Experimental Medicine; University of Parma; Via A. Gramsci 14 43126 Parma Italy
| | - Ezio Musso
- Department of Life Sciences; University of Parma; Parco Area delle Scienze 11/A 43124 Parma Italy
- National Institute for Cardiovascular Research; Bologna Italy
| |
Collapse
|
13
|
Nitric oxide regulates multiple functions and fate of adult progenitor and stem cells. J Physiol Biochem 2014; 71:141-53. [DOI: 10.1007/s13105-014-0373-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 12/05/2014] [Indexed: 01/21/2023]
|
14
|
Karam JP, Muscari C, Sindji L, Bastiat G, Bonafè F, Venier-Julienne MC, Montero-Menei NC. Pharmacologically active microcarriers associated with thermosensitive hydrogel as a growth factor releasing biomimetic 3D scaffold for cardiac tissue-engineering. J Control Release 2014; 192:82-94. [DOI: 10.1016/j.jconrel.2014.06.052] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 06/24/2014] [Accepted: 06/25/2014] [Indexed: 11/28/2022]
|
15
|
Karam JP, Bonafè F, Sindji L, Muscari C, Montero-Menei CN. Adipose-derived stem cell adhesion on laminin-coated microcarriers improves commitment toward the cardiomyogenic lineage. J Biomed Mater Res A 2014; 103:1828-39. [PMID: 25098676 DOI: 10.1002/jbm.a.35304] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 04/14/2014] [Accepted: 07/31/2014] [Indexed: 12/27/2022]
Abstract
For tissue-engineering studies of the infarcted heart it is essential to identify a source of cells that may provide cardiomyocyte progenitors, which is easy to amplify, accessible in adults, and allowing autologous grafts. Preclinical studies have shown that human adipose-derived stem cells (ADSCs) can differentiate into cardiomyocyte-like cells and improve heart function in myocardial infarction. We have developed pharmacologically active microcarriers (PAMs) which are biodegradable and biocompatible polymeric microspheres conveying cells on their biomimetic surface, therefore providing an adequate three-dimensional (3D) microenvironment. Moreover, they can release a growth factor in a prolonged manner. In order to implement ADSCs and PAMs for cardiac tissue engineering we first defined the biomimetic surface by studying the influence of matrix molecules laminin (LM) and fibronectin (FN), in combination with growth factors present in the cardiogenic niche, to further enhance the in vitro cardiac differentiation of ADSCs. We demonstrated that LM increased the expression of cardiac markers (Nkx2.5, GATA4, MEF2C) by ADSCs after 2 weeks in vitro. Interestingly, our results suggest that the 3D support provided by PAMs with a LM biomimetic surface (LM-PAMs) further enhanced the expression of cardiac markers and induced the expression of a more mature contractile protein, cardiac troponin I, compared with the 2D differentiating conditions after only 1 week in culture. The enrichment of the growth-factor cocktail with TGF-β1 potentiated the cardiomyogenic differentiation. These results suggest that PAMs offering a LM biomimetic surface may be efficiently used for applications combining adult stem cells in tissue-engineering strategies of the ischemic heart.
Collapse
Affiliation(s)
- Jean-Pierre Karam
- LUNAM Université, UMR S-1066 F-49933, Angers, France; NSERM U1066, MINT "Micro et nanomédecines biomimétiques,", F-49933, Angers, France; INRC-National Institute for Cardiovascular Research, 40126, Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126, Bologna, Italy
| | | | | | | | | |
Collapse
|
16
|
Directed differentiation of patient-specific induced pluripotent stem cells identifies the transcriptional repression and epigenetic modification of NKX2-5, HAND1, and NOTCH1 in hypoplastic left heart syndrome. PLoS One 2014; 9:e102796. [PMID: 25050861 PMCID: PMC4106834 DOI: 10.1371/journal.pone.0102796] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 06/24/2014] [Indexed: 11/19/2022] Open
Abstract
The genetic basis of hypoplastic left heart syndrome (HLHS) remains unknown, and the lack of animal models to reconstitute the cardiac maldevelopment has hampered the study of this disease. This study investigated the altered control of transcriptional and epigenetic programs that may affect the development of HLHS by using disease-specific induced pluripotent stem (iPS) cells. Cardiac progenitor cells (CPCs) were isolated from patients with congenital heart diseases to generate patient-specific iPS cells. Comparative gene expression analysis of HLHS- and biventricle (BV) heart-derived iPS cells was performed to dissect the complex genetic circuits that may promote the disease phenotype. Both HLHS- and BV heart-derived CPCs were reprogrammed to generate disease-specific iPS cells, which showed characteristic human embryonic stem cell signatures, expressed pluripotency markers, and could give rise to cardiomyocytes. However, HLHS-iPS cells exhibited lower cardiomyogenic differentiation potential than BV-iPS cells. Quantitative gene expression analysis demonstrated that HLHS-derived iPS cells showed transcriptional repression of NKX2-5, reduced levels of TBX2 and NOTCH/HEY signaling, and inhibited HAND1/2 transcripts compared with control cells. Although both HLHS-derived CPCs and iPS cells showed reduced SRE and TNNT2 transcriptional activation compared with BV-derived cells, co-transfection of NKX2-5, HAND1, and NOTCH1 into HLHS-derived cells resulted in synergistic restoration of these promoters activation. Notably, gain- and loss-of-function studies revealed that NKX2-5 had a predominant impact on NPPA transcriptional activation. Moreover, differentiated HLHS-derived iPS cells showed reduced H3K4 dimethylation as well as histone H3 acetylation but increased H3K27 trimethylation to inhibit transcriptional activation on the NKX2-5 promoter. These findings suggest that patient-specific iPS cells may provide molecular insights into complex transcriptional and epigenetic mechanisms, at least in part, through combinatorial expression of NKX2-5, HAND1, and NOTCH1 that coordinately contribute to cardiac malformations in HLHS.
Collapse
|
17
|
Influence of Egr-1 in cardiac tissue-derived mesenchymal stem cells in response to glucose variations. BIOMED RESEARCH INTERNATIONAL 2014; 2014:254793. [PMID: 24967343 PMCID: PMC4054710 DOI: 10.1155/2014/254793] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 05/06/2014] [Indexed: 01/03/2023]
Abstract
Mesenchymal stem cells (MSCs) represent a promising cell population for cell therapy and regenerative medicine applications. However, how variations in glucose are perceived by MSC pool is still unclear. Since, glucose metabolism is cell type and tissue dependent, this must be considered when MSCs are derived from alternative sources such as the heart. The zinc finger transcription factor Egr-1 is an important early response gene, likely to play a key role in the glucose-induced response. Our aim was to investigate how short-term changes in in vitro glucose concentrations affect multipotent cardiac tissue-derived MSCs (cMSCs) in a mouse model of Egr-1 KO (Egr-1−/−). Results showed that loss of Egr-1 does not significantly influence cMSC proliferation. In contrast, responses to glucose variations were observed in wt but not in Egr-1−/− cMSCs by clonogenic assay. Phenotype analysis by RT-PCR showed that cMSCs Egr-1−/− lost the ability to regulate the glucose transporters GLUT-1 and GLUT-4 and, as expected, the Egr-1 target genes VEGF, TGFβ-1, and p300. Acetylated protein levels of H3 histone were impaired in Egr-1−/− compared to wt cMSCs. We propose that Egr-1 acts as immediate glucose biological sensor in cMSCs after a short period of stimuli, likely inducing epigenetic modifications.
Collapse
|
18
|
Strategies affording prevascularized cell-based constructs for myocardial tissue engineering. Stem Cells Int 2014; 2014:434169. [PMID: 24511317 PMCID: PMC3913389 DOI: 10.1155/2014/434169] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 12/02/2013] [Indexed: 12/20/2022] Open
Abstract
The production of a functional cardiac tissue to be transplanted in the injured area of the infarcted myocardium represents a challenge for regenerative medicine. Most cell-based grafts are unviable because of inadequate perfusion; therefore, prevascularization might be a suitable approach for myocardial tissue engineering. To this aim, cells with a differentiation potential towards vascular and cardiac muscle phenotypes have been cocultured in 2D or 3D appropriate scaffolds. In addition to these basic approaches, more sophisticated strategies have been followed employing mixed-cell sheets, microvascular modules, and inosculation from vascular explants. Technologies exerting spatial control of vascular cells, such as topographical surface roughening and ordered patterning, represent other ways to drive scaffold vascularization. Finally, microfluidic devices and bioreactors exerting mechanical stress have also been employed for high-throughput scaling-up production in order to accelerate muscle differentiation and speeding the endothelialization process. Future research should address issues such as how to optimize cells, biomaterials, and biochemical components to improve the vascular integration of the construct within the cardiac wall, satisfying the metabolic and functional needs of the myocardial tissue.
Collapse
|
19
|
Gigli M, Govoni M, Lotti N, Giordano ED, Gazzano M, Munari A. Biocompatible multiblock aliphatic polyesters containing ether-linkages: influence of molecular architecture on solid-state properties and hydrolysis rate. RSC Adv 2014. [DOI: 10.1039/c4ra04248d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new class of biodegradable and biocompatible multiblock copolyesters containing butylene 1,4- cyclohexanedicarboxylate sequences is presented.
Collapse
Affiliation(s)
- Matteo Gigli
- Civil, Chemical, Environmental and Materials Engineering Department
- University of Bologna
- Bologna, Italy
| | - Marco Govoni
- BioEngLab
- Health Science and Technology-Interdepartmental Center for Industrial Research (HST-CIRI)
- University of Bologna
- Ozzano Emilia (BO), Italy
| | - Nadia Lotti
- Civil, Chemical, Environmental and Materials Engineering Department
- University of Bologna
- Bologna, Italy
| | - Emanuele D. Giordano
- BioEngLab
- Health Science and Technology-Interdepartmental Center for Industrial Research (HST-CIRI)
- University of Bologna
- Ozzano Emilia (BO), Italy
- Laboratory of Cellular and Molecular Engineering “Silvio Cavalcanti”
| | - Massimo Gazzano
- Institute for the Organic Synthesis and Photoreactivity
- CNR
- Bologna, Italy
| | - Andrea Munari
- Civil, Chemical, Environmental and Materials Engineering Department
- University of Bologna
- Bologna, Italy
| |
Collapse
|
20
|
Muscari C, Giordano E, Bonafè F, Govoni M, Pasini A, Guarnieri C. Priming adult stem cells by hypoxic pretreatments for applications in regenerative medicine. J Biomed Sci 2013; 20:63. [PMID: 23985033 PMCID: PMC3765890 DOI: 10.1186/1423-0127-20-63] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 08/24/2013] [Indexed: 12/16/2022] Open
Abstract
The efficiency of regenerative medicine can be ameliorated by improving the biological performances of stem cells before their transplantation. Several ex-vivo protocols of non-damaging cell hypoxia have been demonstrated to significantly increase survival, proliferation and post-engraftment differentiation potential of stem cells. The best results for priming cultured stem cells against a following, otherwise lethal, ischemic stress have been obtained with brief intermittent episodes of hypoxia, or anoxia, and reoxygenation in accordance with the extraordinary protection afforded by the conventional maneuver of ischemic preconditioning in severely ischemic organs. These protocols of hypoxic preconditioning can be rather easily reproduced in a laboratory; however, more suitable pharmacological interventions inducing stem cell responses similar to those activated in hypoxia are considered among the most promising solutions for future applications in cell therapy. Here we want to offer an up-to-date review of the molecular mechanisms translating hypoxia into beneficial events for regenerative medicine. To this aim the involvement of epigenetic modifications, microRNAs, and oxidative stress, mainly activated by hypoxia inducible factors, will be discussed. Stem cell adaptation to their natural hypoxic microenvironments (niche) in healthy and neoplastic tissues will be also considered.
Collapse
Affiliation(s)
- Claudio Muscari
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Via Irnerio 48, 40126, Bologna, Italy.
| | | | | | | | | | | |
Collapse
|
21
|
Mechanostimulation protocols for cardiac tissue engineering. BIOMED RESEARCH INTERNATIONAL 2013; 2013:918640. [PMID: 23936858 PMCID: PMC3722786 DOI: 10.1155/2013/918640] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 06/18/2013] [Indexed: 02/06/2023]
Abstract
Owing to the inability of self-replacement by a damaged myocardium, alternative strategies to heart transplantation have been explored within the last decades and cardiac tissue engineering/regenerative medicine is among the present challenges in biomedical research. Hopefully, several studies witness the constant extension of the toolbox available to engineer a fully functional, contractile, and robust cardiac tissue using different combinations of cells, template bioscaffolds, and biophysical stimuli obtained by the use of specific bioreactors. Mechanical forces influence the growth and shape of every tissue in our body generating changes in intracellular biochemistry and gene expression. That is why bioreactors play a central role in the task of regenerating a complex tissue such as the myocardium. In the last fifteen years a large number of dynamic culture devices have been developed and many results have been collected. The aim of this brief review is to resume in a single streamlined paper the state of the art in this field.
Collapse
|