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Stulpinas A, Uzusienis T, Imbrasaite A, Krestnikova N, Unguryte A, Kalvelyte AV. Cell-cell and cell-substratum contacts in the regulation of MAPK and Akt signalling: Importance in therapy, biopharmacy and bioproduction. Cell Signal 2021; 84:110034. [PMID: 33933583 DOI: 10.1016/j.cellsig.2021.110034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 11/17/2022]
Abstract
The use of cultured cells as a tool for research, precision medicine, biopharmacy, and biomanufacturing is constantly increasing. In parallel, the role of cell-cell and cell-substratum contacts in cell functioning is increasingly validated. Adhesion signalling plays a key role here. The activity of cell fate-regulating signalling molecules is an important factor in determining cell behaviour, as well as their response to treatment, depending on cell phenotypic status and location in the body. Three cellular state models (adherent, single cells in suspension, and aggregated cells) were compared for cell signalling, including focal adhesion (FAK), mitogen-activated (MAPK), as well as Akt protein kinases, and transcription factor cJun, by using lung adenocarcinoma A549, muscle-derived stem Myo, as well as primary lung cancer cell lines. Survival of both A549 and Myo cells was dependent on kinases Akt and ERK in detached conditions. Intercellular contacts in aggregates promoted activation of Akt and ERK, and cell survival. Loss of contacts with the substrate increased phosphorylation of MAP kinases JNK and p38, while decreased Akt phosphorylation by processes involving FAK. Unexpectedly, detachment increased phosphorylation of antiapoptotic kinase ERK in A549, while in Myo stem cells ERK phosphorylation was downregulated. JNK target transcription factor cJun protein level was markedly diminished by contacts between cells possibly involving mechanism of proteasomal degradation. Furthermore, studies revealed the opposite dependence of molecules of the same signalling pathway - phospho-cJun and phospho-JNK - on cell culture density. Differences in ERK activation under detachment conditions indicate that targeting of prosurvival kinases during anoikis should be different in different cells. Moreover, the outcome of JNK activation in cells may depend on the amount of cJun, which is determined by cell-cell contacts.
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Affiliation(s)
- Aurimas Stulpinas
- Dept. of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Centre, Vilnius University, Saulėtekio al. 7, LT-10257, Lithuania
| | - Tomas Uzusienis
- Dept. of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Centre, Vilnius University, Saulėtekio al. 7, LT-10257, Lithuania
| | - Ausra Imbrasaite
- Dept. of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Centre, Vilnius University, Saulėtekio al. 7, LT-10257, Lithuania
| | - Natalija Krestnikova
- Dept. of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Centre, Vilnius University, Saulėtekio al. 7, LT-10257, Lithuania
| | - Ausra Unguryte
- Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Lithuania
| | - Audrone V Kalvelyte
- Dept. of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Centre, Vilnius University, Saulėtekio al. 7, LT-10257, Lithuania.
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The Effect of a Unique Region of Parvovirus B19 Capsid Protein VP1 on Endothelial Cells. Biomolecules 2021; 11:biom11040606. [PMID: 33921883 PMCID: PMC8073096 DOI: 10.3390/biom11040606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 11/16/2022] Open
Abstract
Parvovirus B19 (B19V) is a widespread human pathogen possessing a high tropism for erythroid precursor cells. However, the persistence or active replication of B19V in endothelial cells (EC) has been detected in diverse human pathologies. The VP1 unique region (VP1u) of the viral capsid has been reported to act as a major determinant of viral tropism for erythroid precursor cells. Nevertheless, the interaction of VP1u with EC has not been studied. We demonstrate that recombinant VP1u is efficiently internalized by rats’ pulmonary trunk blood vessel-derived EC in vitro compared to the human umbilical vein EC line. The exposure to VP1u was not acutely cytotoxic to either human- or rat-derived ECs, but led to the upregulation of cellular stress signaling-related pathways. Our data suggest that high levels of circulating B19V during acute infection can cause endothelial damage, even without active replication or direct internalization into the cells.
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Gasiūnienė M, Zentelytė A, Treigytė G, Baronaitė S, Savickienė J, Utkus A, Navakauskienė R. Epigenetic alterations in amniotic fluid mesenchymal stem cells derived from normal and fetus-affected gestations: A focus on myogenic and neural differentiations. Cell Biol Int 2019; 43:299-312. [PMID: 30635962 DOI: 10.1002/cbin.11099] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/05/2019] [Indexed: 12/21/2022]
Abstract
Amniotic fluid-derived mesenchymal stem cells (AF-MSCs) are autologous to the fetus and represent a potential alternative source for the regenerative medicine and treatment of perinatal disorders. To date, AF-MSCs differentiation capacity to non-mesodermal lineages and epigenetic regulation are still poorly characterized. The present study investigated the differentiation potential of AF-MSCs toward neural-like cells in comparison to the mesodermal myogenic lineage and assessed epigenetic factors involved in tissue-specific differentiation. Myogenic and neural differentiation assays were performed by the incubation with specific induction media. Typical MSCs markers were determined by flow cytometry, the expression of lineage-specific genes, microRNAs and chromatin modifying proteins were examined by RT-qPCR and Western blot, respectively. AF-MSCs of normal and fetus-affected gestations had similar stem cells characteristics and two-lineage potential, as characterized by cell morphology and the expression of myogenic and neural markers. Two-lineage differentiation process was associated with the down-regulation of miR-17 and miR-21, the up-regulation of miR-34a, miR-146a and DNMT3a/DNMT3b along with the gradual decrease in the levels of DNMT1, HDAC1, active marks of chromatin (H4hyperAc, H3K9ac, H3K4me3) and the repressive H3K9me3 mark. Differentiation was accompanied by the down-regulation of PRC1/2 proteins (BMI1/SUZ12, EZH2) and the retention of the repressive H3K27me3 mark. We report that both AF-MSCs of normal and fetus-affected gestations possess differentiation capacity toward myogenic and neural lineages through rather similar epigenetic mechanisms that may provide potential applications for further investigation of the molecular basis of prenatal diseases and for the future autologous therapy.
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Affiliation(s)
- Monika Gasiūnienė
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio av. 7, Vilnius, LT-10257, Lithuania
| | - Aistė Zentelytė
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio av. 7, Vilnius, LT-10257, Lithuania
| | - Gražina Treigytė
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio av. 7, Vilnius, LT-10257, Lithuania
| | - Sandra Baronaitė
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio av. 7, Vilnius, LT-10257, Lithuania
| | - Jūratė Savickienė
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio av. 7, Vilnius, LT-10257, Lithuania
| | - Algirdas Utkus
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University, M. K. Ciurlionio st. 21, Vilnius, LT-03101, Lithuania
| | - Rūta Navakauskienė
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio av. 7, Vilnius, LT-10257, Lithuania
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Xu Z, Yu L, Lu H, Feng W, Chen L, Zhou J, Yang X, Qi Z. A modified preplate technique for efficient isolation and proliferation of mice muscle-derived stem cells. Cytotechnology 2018; 70:1671-1683. [PMID: 30417280 DOI: 10.1007/s10616-018-0262-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/24/2018] [Indexed: 12/24/2022] Open
Abstract
We modified an existing protocol to develop a more efficient method to acquire and culture muscle-derived stem cells (MDSCs) and compared the characteristics of cells obtained from the two methods. This method is based on currently used multistep enzymatic digestion and preplate technique. During the replating process, we replaced the traditional medium with isolation medium to promote fibroblast-like cell adherence at initial replating step, which shortened the purifying duration by up to 4 days. Moreover, we modified the culture container to provide a stable microenvironment that promotes MDSC adherence. We compared the cell morphology, growth curve and the expression of specific markers (Sca-1, CD34, PAX7 and Desmin) between the two cell groups separately obtained from the two methods. Afterwards, we compared the neural differentiation capacity of MDSCs with other muscle-derived cell lineages. The protocol developed here is a fast and effective method to harvest and purify MDSCs from mice limb skeletal muscle.
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Affiliation(s)
- Zhuqiu Xu
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China
| | - Lu Yu
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China
| | - Haibin Lu
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China
| | - Weifeng Feng
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China
| | - Lulu Chen
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China
| | - Jing Zhou
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China
| | - Xiaonan Yang
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China.
| | - Zuoliang Qi
- Chinese Academy of Medical Science, Peking Union Medical College, Plastic Surgery Hospital, Beijing, 100041, China.
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Alksne M, Simoliunas E, Kalvaityte M, Skliutas E, Rinkunaite I, Gendviliene I, Baltriukiene D, Rutkunas V, Bukelskiene V. The effect of larger than cell diameter polylactic acid surface patterns on osteogenic differentiation of rat dental pulp stem cells. J Biomed Mater Res A 2018; 107:174-186. [DOI: 10.1002/jbm.a.36547] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Milda Alksne
- Institute of Biochemistry, Life Sciences Center, Vilnius University; Sauletekio Avenue 7, LT-10223, Vilnius Lithuania
| | - Egidijus Simoliunas
- Institute of Biochemistry, Life Sciences Center, Vilnius University; Sauletekio Avenue 7, LT-10223, Vilnius Lithuania
| | - Migle Kalvaityte
- Institute of Biochemistry, Life Sciences Center, Vilnius University; Sauletekio Avenue 7, LT-10223, Vilnius Lithuania
| | - Edvinas Skliutas
- Laser Research Center, Faculty of Physics; Vilnius University; Sauletekio Avenue 10, LT-10223, Vilnius Lithuania
| | - Ieva Rinkunaite
- Institute of Biochemistry, Life Sciences Center, Vilnius University; Sauletekio Avenue 7, LT-10223, Vilnius Lithuania
| | - Ieva Gendviliene
- Institute of Odontology, Faculty of Medicine; Vilnius University; Zalgirio Street 115, LT-08217, Vilnius Lithuania
| | - Daiva Baltriukiene
- Institute of Biochemistry, Life Sciences Center, Vilnius University; Sauletekio Avenue 7, LT-10223, Vilnius Lithuania
| | - Vygandas Rutkunas
- Institute of Odontology, Faculty of Medicine; Vilnius University; Zalgirio Street 115, LT-08217, Vilnius Lithuania
| | - Virginija Bukelskiene
- Institute of Biochemistry, Life Sciences Center, Vilnius University; Sauletekio Avenue 7, LT-10223, Vilnius Lithuania
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Abdelwahid E, Kalvelyte A, Stulpinas A, de Carvalho KAT, Guarita-Souza LC, Foldes G. Stem cell death and survival in heart regeneration and repair. Apoptosis 2016; 21:252-68. [PMID: 26687129 PMCID: PMC5200890 DOI: 10.1007/s10495-015-1203-4] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cardiovascular diseases are major causes of mortality and morbidity. Cardiomyocyte apoptosis disrupts cardiac function and leads to cardiac decompensation and terminal heart failure. Delineating the regulatory signaling pathways that orchestrate cell survival in the heart has significant therapeutic implications. Cardiac tissue has limited capacity to regenerate and repair. Stem cell therapy is a successful approach for repairing and regenerating ischemic cardiac tissue; however, transplanted cells display very high death percentage, a problem that affects success of tissue regeneration. Stem cells display multipotency or pluripotency and undergo self-renewal, however these events are negatively influenced by upregulation of cell death machinery that induces the significant decrease in survival and differentiation signals upon cardiovascular injury. While efforts to identify cell types and molecular pathways that promote cardiac tissue regeneration have been productive, studies that focus on blocking the extensive cell death after transplantation are limited. The control of cell death includes multiple networks rather than one crucial pathway, which underlies the challenge of identifying the interaction between various cellular and biochemical components. This review is aimed at exploiting the molecular mechanisms by which stem cells resist death signals to develop into mature and healthy cardiac cells. Specifically, we focus on a number of factors that control death and survival of stem cells upon transplantation and ultimately affect cardiac regeneration. We also discuss potential survival enhancing strategies and how they could be meaningful in the design of targeted therapies that improve cardiac function.
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Affiliation(s)
- Eltyeb Abdelwahid
- Feinberg School of Medicine, Feinberg Cardiovascular Research Institute, Northwestern University, 303 E. Chicago Ave., Tarry 14-725, Chicago, IL, 60611, USA.
| | - Audrone Kalvelyte
- Department of Molecular Cell Biology, Vilnius University Institute of Biochemistry, Vilnius, Lithuania
| | - Aurimas Stulpinas
- Department of Molecular Cell Biology, Vilnius University Institute of Biochemistry, Vilnius, Lithuania
| | - Katherine Athayde Teixeira de Carvalho
- Cell Therapy and Biotechnology in Regenerative Medicine Research Group, Pequeno Príncipe Faculty, Pelé Pequeno Príncipe Institute, Curitiba, Paraná, 80250-200, Brazil
| | - Luiz Cesar Guarita-Souza
- Experimental Laboratory of Institute of Biological and Health Sciences of Pontifical Catholic University of Parana, Curitiba, Paraná, 80215-901, Brazil
| | - Gabor Foldes
- National Heart and Lung Institute, Imperial College London, Imperial Centre for Experimental and Translational Medicine, Du Cane Road, London, W12 0NN, UK
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Krestnikova N, Stulpinas A, Imbrasaite A, Sinkeviciute G, Kalvelyte AV. JNK implication in adipocyte-like cell death induced by chemotherapeutic drug cisplatin. J Toxicol Sci 2015; 40:21-32. [PMID: 25560393 DOI: 10.2131/jts.40.21] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Recent evidence shows that tumor microenvironment containing heterogeneous cells may be involved in cancer initiation, growth and tumor cell response to anticancer therapy. Chemotherapy was designed to make toxic impact on malicious cells in organisms, however, the means to protect healthy cells against chemical toxicity are still unsuccessful. As known, the majority of tumor surrounding cells are cancer-associated adipocytes which influence cancer development, progression and treatment. Targeting the components of tumor microenvironment in combination with conventional cancer treatment may become an effective cancer therapy strategy. However, little is known about adipocyte death mechanisms during combined chemo- and targeted therapy. The importance of c-Jun-NH<inf>2</inf>-terminal kinase (JNK) signaling in tumor development and treatment has been demonstrated using various in vitro and in vivo cancer models. The aim of this study was to ascertain adipocyte viability during simultaneous stress kinase JNK inhibition and exposure to one of the most commonly used anticancer drugs cis-diamminedichloroplatinum II (cisplatin). Our model involved adipocyte-like cells (ADC) which were obtained during in vitro differentiation of adult rabbit muscle-derived stem cells. Cisplatin induced apoptotic cell death. During 24-hr cisplatin treatment gradual, strong and prolonged increase of both JNK and its target protein c-Jun phosphorylation was found in ADC. Pre-treatment of cells with SP600125 decreased cisplatin-induced activation of c-Jun and promoted apoptosis. Upregulation of proapoptotic Bax and downregulation of antiapoptotic Bcl-2 proteins were found to be regulated in JNK-dependent manner. Thus, the results prove the antiapoptotic role of activated JNK in adipocyte-like cells treated with cisplatin.
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Affiliation(s)
- Natalija Krestnikova
- Vilnius University Institute of Biochemistry, Department of Molecular Cell Biology, Lithuania
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