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Stelling-Férez J, Cappellacci I, Pandolfi A, Gabaldón JA, Pipino C, Nicolás FJ. Oleanolic acid rescues critical features of umbilical vein endothelial cells permanently affected by hyperglycemia. Front Endocrinol (Lausanne) 2023; 14:1308606. [PMID: 38192424 PMCID: PMC10773851 DOI: 10.3389/fendo.2023.1308606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/23/2023] [Indexed: 01/10/2024] Open
Abstract
Skin wound healing is a physiological process that involves several cell types. Among them, endothelial cells are required for inflammation resolution and neo-angiogenesis, both necessary for tissue restoration after injury. Primary human umbilical vein endothelial cells (C-HUVECs) are derived from the umbilical cord. When women develop gestational diabetes, chronic exposure to hyperglycemia induces epigenetic modifications in these cells (GD-HUVECs), leading to a permanent pro-inflammatory phenotype and impaired angiogenesis in contrast to control cells. Oleanolic acid (OA) is a bioactive triterpenoid known for its epithelial cell migration promotion stimulation and higher tensile strength of wounds. However, the potentially anti-inflammatory and pro-angiogenic properties of OA are still under investigation. We tested OA on C- and GD-HUVECs under inflammatory conditions induced by low levels of the inflammatory cytokine TNF-α. Reduced expression of adhesion molecules VCAM1, ICAM1, and SELE was obtained in OA-pre-treated C- and GD-HUVECs. Additionally, protein VCAM1 levels were also decreased by OA. Coherently, monocyte adhesion assays showed that a lower number of monocytes adhered to GD-HUVEC endothelium under OA pre-treatment when compared to untreated ones. It is noteworthy that OA improved angiogenesis parameters in both phenotypes, being especially remarkable in the case of GD-HUVECs, since OA strongly rescued their poor tube formation behavior. Moreover, endothelial cell migration was improved in C- and GD-HUVECs in scratch assays, an effect that was further confirmed by focal adhesion (FA) remodeling, revealed by paxillin staining on immunocytochemistry assays. Altogether, these results suggest that OA could be an emergent wound healing agent due to its capacity to rescue endothelial malfunction caused by hyperglycemia.
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Affiliation(s)
- Javier Stelling-Férez
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Murcia, Spain
- Regeneration, Molecular Oncology, and TGF-β, IMIB-Pascual Parrilla, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Ilaria Cappellacci
- Department of Medical, Oral and Biotechnological Sciences, StemTeCh Group, Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), University G. D’Annunzio Chieti-Pescara, Chieti, Italy
| | - Assunta Pandolfi
- Department of Medical, Oral and Biotechnological Sciences, StemTeCh Group, Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), University G. D’Annunzio Chieti-Pescara, Chieti, Italy
| | - José Antonio Gabaldón
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Murcia, Spain
| | - Caterina Pipino
- Department of Medical, Oral and Biotechnological Sciences, StemTeCh Group, Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), University G. D’Annunzio Chieti-Pescara, Chieti, Italy
| | - Francisco José Nicolás
- Regeneration, Molecular Oncology, and TGF-β, IMIB-Pascual Parrilla, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
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Stelling-Férez J, López-Miranda S, Gabaldón JA, Nicolás FJ. Oleanolic Acid Complexation with Cyclodextrins Improves Its Cell Bio-Availability and Biological Activities for Cell Migration. Int J Mol Sci 2023; 24:14860. [PMID: 37834307 PMCID: PMC10573973 DOI: 10.3390/ijms241914860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Wound healing is a complex process to restore skin. Plant-derived bioactive compounds might be a source of substances for the treatment of wounds stalled in a non-resolving stage of wound healing. Oleanolic acid (OA), a pentacyclic triterpene, has shown favorable wound healing properties both in vitro and in vivo. Unfortunately, OA cannot be solubilized in aqueous media, and it needs to be helped by the use of dimethyl sulfoxide (DMSO). In this paper, we have shown that cyclodextrins (CDs) are a good alternative to DMSO as agents to deliver OA to cells, providing better features than DMSO. Cyclodextrins are natural macromolecules that show a unique tridimensional structure that can encapsulate a wide variety of hydrophobic compounds. We have studied the cyclodextrin-encapsulated form of OA with OA/DMSO, comparing their stability, biological properties for cell migration, and cell viability. In addition, detailed parameters related to cell migration and cytoskeletal reorganization have been measured and compared. Our results show that OA-encapsulateds compound exhibit several advantages when compared to non-encapsulated OA in terms of chemical stability, migration enhancement, and preservation of cell viability.
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Affiliation(s)
- Javier Stelling-Férez
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de San Antonio Murcia (UCAM), Campus de los Jerónimos n°135, Guadalupe, 30107 Murcia, Spain; (J.S.-F.); (S.L.-M.); (J.A.G.)
- Regeneration, Molecular Oncology and TGF-β, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, 30120 Murcia, Spain
| | - Santiago López-Miranda
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de San Antonio Murcia (UCAM), Campus de los Jerónimos n°135, Guadalupe, 30107 Murcia, Spain; (J.S.-F.); (S.L.-M.); (J.A.G.)
| | - José Antonio Gabaldón
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de San Antonio Murcia (UCAM), Campus de los Jerónimos n°135, Guadalupe, 30107 Murcia, Spain; (J.S.-F.); (S.L.-M.); (J.A.G.)
| | - Francisco José Nicolás
- Regeneration, Molecular Oncology and TGF-β, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, 30120 Murcia, Spain
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Stelling-Férez J, Gabaldón JA, Nicolás FJ. Oleanolic acid stimulation of cell migration involves a biphasic signaling mechanism. Sci Rep 2022; 12:15065. [PMID: 36064555 PMCID: PMC9445025 DOI: 10.1038/s41598-022-17553-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 07/27/2022] [Indexed: 11/09/2022] Open
Abstract
Cell migration is a critical process for wound healing, a physiological phenomenon needed for proper skin restoration after injury. Wound healing can be compromised under pathological conditions. Natural bioactive terpenoids have shown promising therapeutic properties in wound healing. Oleanolic acid (OA), a triterpenoid, enhances in vitro and in vivo cell migration. However, the underlying signaling mechanisms and pathways triggered by OA are poorly understood. We have previously shown that OA activates epidermal growth factor receptor (EGFR) and downstream effectors such as mitogen-activated protein (MAP) kinase cascade and c-Jun N-terminal kinase (JNK), leading to c-Jun transcription factor phosphorylation, all of which are involved in migration. We performed protein expression or migration front protein subcellular localization assays, which showed that OA induces c-Jun activation and its nuclear translocation, which precisely overlaps at wound-edge cells. Furthermore, c-Jun phosphorylation was independent of EGFR activation. Additionally, OA promoted actin cytoskeleton and focal adhesion (FA) dynamization. In fact, OA induced the recruitment of regulator proteins to FAs to dynamize these structures during migration. Moreover, OA changed paxillin distribution and activated focal adhesion kinase (FAK) at focal adhesions (FAs). The molecular implications of these observations are discussed.
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Affiliation(s)
- Javier Stelling-Férez
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos nº135, Guadalupe, 30107, Murcia, Spain.,Regeneration, Molecular Oncology and TGF-ß, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - José Antonio Gabaldón
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos nº135, Guadalupe, 30107, Murcia, Spain
| | - Francisco José Nicolás
- Regeneration, Molecular Oncology and TGF-ß, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain.
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Pipino C, Bernabé-García Á, Cappellacci I, Stelling-Férez J, Di Tomo P, Santalucia M, Navalón C, Pandolfi A, Nicolás FJ. Effect of the Human Amniotic Membrane on the Umbilical Vein Endothelial Cells of Gestational Diabetic Mothers: New Insight on Inflammation and Angiogenesis. Front Bioeng Biotechnol 2022; 10:854845. [PMID: 35866032 PMCID: PMC9294233 DOI: 10.3389/fbioe.2022.854845] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/11/2022] [Indexed: 01/18/2023] Open
Abstract
One of the most relevant diabetes complications is impaired wound healing, mainly characterized by reduced peripheral blood flow and diminished neovascularization together with increased inflammation and oxidative stress. Unfortunately, effective therapies are currently lacking. Recently, the amniotic membrane (AM) has shown promising results in wound management. Here, the potential role of AM on endothelial cells isolated from the umbilical cord vein of gestational diabetes-affected women (GD-HUVECs), has been investigated. Indeed, GD-HUVECs in vivo exposed to chronic hyperglycemia during pregnancy compared to control cells (C-HUVECs) have shown molecular modifications of cellular homeostasis ultimately impacting oxidative and nitro-oxidative stress, inflammatory phenotype, nitric oxide (NO) synthesis, and bioavailability, thus representing a useful model for studying the mechanisms potentially supporting the role of AM in chronic non-healing wounds. In this study, the anti-inflammatory properties of AM have been assessed using a monocyte–endothelium interaction assay in cells pre-stimulated with tumor necrosis factor-α (TNF-α) and through vascular adhesion molecule expression and membrane exposure, together with the AM impact on the nuclear factor kappa-light-chain-enhancer of activated B cell (NF-kB) pathway and NO bioavailability. Moreover, GD-HUVEC migration and tube formation ability were evaluated in the presence of AM. The results showed that AM significantly reduced TNF-α-stimulated monocyte–endothelium interaction and the membrane exposure of the endothelial vascular and intracellular adhesion molecules (VCAM-1 and ICAM-1, respectively) in both C- and GD-HUVECs. Strikingly, AM treatment significantly improved vessel formation in GD-HUVECs and cell migration in both C- and GD-HUVECs. These collective results suggest that AM positively affects various critical pathways in inflammation and angiogenesis, thus providing further validation for ongoing clinical trials in diabetic foot ulcers.
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Affiliation(s)
- Caterina Pipino
- Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), Department of Medical, Oral and Biotechnological Sciences, University G. D’Annunzio Chieti-Pescara, StemTeCh Group, Chieti, Italy
- *Correspondence: Caterina Pipino, ; Francisco José Nicolás,
| | - Ángel Bernabé-García
- Regeneration, Molecular Oncology and TGFß, IMIB-Arrixaca, Hospital Clínico Universitario Virgen de La Arrixaca, Murcia, Spain
| | - Ilaria Cappellacci
- Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), Department of Medical, Oral and Biotechnological Sciences, University G. D’Annunzio Chieti-Pescara, StemTeCh Group, Chieti, Italy
| | - Javier Stelling-Férez
- Regeneration, Molecular Oncology and TGFß, IMIB-Arrixaca, Hospital Clínico Universitario Virgen de La Arrixaca, Murcia, Spain
- Department of Nutrition and Food Technology, UCAM, Murcia, Spain
| | - Pamela Di Tomo
- Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), Department of Medical, Oral and Biotechnological Sciences, University G. D’Annunzio Chieti-Pescara, StemTeCh Group, Chieti, Italy
| | - Manuela Santalucia
- Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), Department of Medical, Oral and Biotechnological Sciences, University G. D’Annunzio Chieti-Pescara, StemTeCh Group, Chieti, Italy
| | - Carlos Navalón
- Regeneration, Molecular Oncology and TGFß, IMIB-Arrixaca, Hospital Clínico Universitario Virgen de La Arrixaca, Murcia, Spain
| | - Assunta Pandolfi
- Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), Department of Medical, Oral and Biotechnological Sciences, University G. D’Annunzio Chieti-Pescara, StemTeCh Group, Chieti, Italy
| | - Francisco José Nicolás
- Regeneration, Molecular Oncology and TGFß, IMIB-Arrixaca, Hospital Clínico Universitario Virgen de La Arrixaca, Murcia, Spain
- *Correspondence: Caterina Pipino, ; Francisco José Nicolás,
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Ruiz-Cañada C, Bernabé-García Á, Liarte S, Rodríguez-Valiente M, Nicolás FJ. Chronic Wound Healing by Amniotic Membrane: TGF-β and EGF Signaling Modulation in Re-epithelialization. Front Bioeng Biotechnol 2021; 9:689328. [PMID: 34295882 PMCID: PMC8290337 DOI: 10.3389/fbioe.2021.689328] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/17/2021] [Indexed: 12/20/2022] Open
Abstract
The application of amniotic membrane (AM) on chronic wounds has proven very effective at resetting wound healing, particularly in re-epithelialization. Historically, several aspects of AM effect on wound healing have been evaluated using cell models. In keratinocytes, the presence of AM induces the activation of mitogen-activated protein (MAP) kinase and c-Jun N-terminal kinase (JNK) pathways, together with the high expression of c-Jun, an important transcription factor for the progression of the re-epithelialization tongue. In general, the levels of transforming growth factor (TGF)-β present in a wound are critical for the process of wound healing; they are elevated during the inflammation phase and remain high in some chronic wounds. Interestingly, the presence of AM, through epidermal growth factor (EGF) signaling, produces a fine-tuning of the TGF-β signaling pathway that re-conducts the stalled process of wound healing. However, the complete suppression of TGF-β signaling has proven negative for the AM stimulation of migration, suggesting that a minimal amount of TGF-β signaling is required for proper wound healing. Regarding migration machinery, AM contributes to the dynamics of focal adhesions, producing a high turnover and thus speeding up remodeling. This is clear because proteins, such as Paxillin, are activated upon treatment with AM. On top of this, AM also produces changes in the expression of Paxillin. Although we have made great progress in understanding the effects of AM on chronic wound healing, a long way is still ahead of us to fully comprehend its effects.
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Affiliation(s)
- Catalina Ruiz-Cañada
- Laboratorio de Regeneración, Oncología Molecular y TGF-β, IMIB-Arrixaca, Murcia, Spain
| | - Ángel Bernabé-García
- Laboratorio de Regeneración, Oncología Molecular y TGF-β, IMIB-Arrixaca, Murcia, Spain
| | - Sergio Liarte
- Laboratorio de Regeneración, Oncología Molecular y TGF-β, IMIB-Arrixaca, Murcia, Spain
| | - Mónica Rodríguez-Valiente
- Laboratorio de Regeneración, Oncología Molecular y TGF-β, IMIB-Arrixaca, Murcia, Spain.,Unidad de Heridas Crónicas y Úlcera de Pie Diabético, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
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Alburquerque-González B, Bernabé-García Á, Bernabé-García M, Ruiz-Sanz J, López-Calderón FF, Gonnelli L, Banci L, Peña-García J, Luque I, Nicolás FJ, Cayuela-Fuentes ML, Luchinat E, Pérez-Sánchez H, Montoro-García S, Conesa-Zamora P. The FDA-Approved Antiviral Raltegravir Inhibits Fascin1-Dependent Invasion of Colorectal Tumor Cells In Vitro and In Vivo. Cancers (Basel) 2021; 13:cancers13040861. [PMID: 33670655 PMCID: PMC7921938 DOI: 10.3390/cancers13040861] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 01/29/2023] Open
Abstract
Simple Summary Colorectal cancer (CRC) is the third leading cause of cancer-related deaths worldwide. Serrated adenocarcinoma (SAC) has been recently recognized by the WHO as a histological CRC with bad prognosis. Consistent with previous evidence, our group identified Fascin1 as a protein directly related to the invasiveness of tumor cells, overexpressed and positively correlated with worse survival in various carcinomas, including SAC. Therefore, Fascin1 has emerged as an ideal target for cancer treatment. In the present study, virtual screening has been carried out from a library of 9591 compounds, thus identifying the FDA-approved anti-retroviral raltegravir (RAL) as a potential Fascin1 blocker. In vitro and in vivo results show that RAL exhibits Fascin1-binding activity and Fascin1-dependent anti-invasive and anti-metastatic properties against CRC cells both in vitro and in vivo. Abstract Background: Fascin1 is the key actin-bundling protein involved in cancer invasion and metastasis whose expression is associated with bad prognosis in tumor from different origins. Methods: In the present study, virtual screening (VS) was performed for the search of Fascin1 inhibitors and RAL, an FDA-approved inhibitor of human immunodeficiency virus-1 (HIV-1) integrase, was identified as a potential Fascin1 inhibitor. Biophysical techniques including nuclear magnetic resonance (NMR) and differential scanning fluorimetry (DSF) were carried out in order to confirm RAL as a Fascin1 blocker. The effect of RAL on actin-bundling activity Fascin1 was assessed by transmission electron microscopy (TEM), immunofluorescence, migration, and invasion assays on two human colorectal adenocarcinoma cell lines: HCT-116 and DLD-1. In addition, the anti-metastatic potential of RAL was in vivo evaluated by using the zebrafish animal model. Results: NMR and DSF confirmed in silico predictions and TEM demonstrated the RAL-induced disorganization of the actin structure compared to control conditions. The protrusion of lamellipodia in cancer cell line overexpressing Fascin1 (HCT-116) was abolished in the presence of this drug. By following the addition of RAL, migration of HCT-116 and DLD-1 cell lines was significantly inhibited. Finally, using endogenous and exogenous models of Fascin1 expression, the invasive capacity of colorectal tumor cells was notably impaired in the presence of RAL in vivo assays; without undesirable cytotoxic effects. Conclusion: The current data show the in vitro and in vivo efficacy of the antiretroviral drug RAL in inhibiting human colorectal cancer cells invasion and metastasis in a Fascin1-dependent manner.
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Affiliation(s)
- Begoña Alburquerque-González
- Department of Pathology and Histology, Campus de los Jerónimos, UCAM Universidad Católica San Antonio de Murcia, s/n, 30107 Murcia, Spain; (B.A.-G.); (F.F.L.-C.)
| | - Ángel Bernabé-García
- Laboratorio de Regeneración, Oncología Molecular y TGF-ß, Biomedical Research Institute of Murcia (IMIB-Arrixaca), Carretera Madrid-Cartagena, El Palmar, 30120 Murcia, Spain; (Á.B.-G.); (F.J.N.)
| | - Manuel Bernabé-García
- Telomerase, Cancer and Aging Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain; (M.B.-G.); (M.L.C.-F.)
| | - Javier Ruiz-Sanz
- Department of Physical Chemistry, Institute of Biotechnology and Excellence Research Unit of “Chemistry Applied to Biomedicine and the Environment, Spain Campus Fuentenueva s/n, University of Granada, 18071 Granada, Spain; (J.R.-S.); (I.L.)
| | - Fernando Feliciano López-Calderón
- Department of Pathology and Histology, Campus de los Jerónimos, UCAM Universidad Católica San Antonio de Murcia, s/n, 30107 Murcia, Spain; (B.A.-G.); (F.F.L.-C.)
| | - Leonardo Gonnelli
- CERM—Magnetic Resonance Center, Università degli Studi di Firenze, Via Luigi Sacconi 6, 50019 Sesto Fiorentino, Italy; (L.G.); (L.B.); (E.L.)
- Dipartimento di Chimica, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Lucia Banci
- CERM—Magnetic Resonance Center, Università degli Studi di Firenze, Via Luigi Sacconi 6, 50019 Sesto Fiorentino, Italy; (L.G.); (L.B.); (E.L.)
- Dipartimento di Chimica, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Jorge Peña-García
- Structural Bioinformatics and High Performance Computing (BIO-HPC) Research Group, Campus de los Jerónimos, s/n, UCAM Universidad Católica San Antonio de Murcia, Guadalupe, 30107 Murcia, Spain; (J.P.-G.); (H.P.-S.)
| | - Irene Luque
- Department of Physical Chemistry, Institute of Biotechnology and Excellence Research Unit of “Chemistry Applied to Biomedicine and the Environment, Spain Campus Fuentenueva s/n, University of Granada, 18071 Granada, Spain; (J.R.-S.); (I.L.)
| | - Francisco José Nicolás
- Laboratorio de Regeneración, Oncología Molecular y TGF-ß, Biomedical Research Institute of Murcia (IMIB-Arrixaca), Carretera Madrid-Cartagena, El Palmar, 30120 Murcia, Spain; (Á.B.-G.); (F.J.N.)
| | - María Luisa Cayuela-Fuentes
- Telomerase, Cancer and Aging Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain; (M.B.-G.); (M.L.C.-F.)
| | - Enrico Luchinat
- CERM—Magnetic Resonance Center, Università degli Studi di Firenze, Via Luigi Sacconi 6, 50019 Sesto Fiorentino, Italy; (L.G.); (L.B.); (E.L.)
- Consorzio per lo Sviluppo dei Sistemi a Grande Interfase—CSGI, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Horacio Pérez-Sánchez
- Structural Bioinformatics and High Performance Computing (BIO-HPC) Research Group, Campus de los Jerónimos, s/n, UCAM Universidad Católica San Antonio de Murcia, Guadalupe, 30107 Murcia, Spain; (J.P.-G.); (H.P.-S.)
| | - Silvia Montoro-García
- Cell Culture Lab, Facultad de Ciencias de la Salud, Campus de los Jerónimos, s/n, UCAM Universidad Católica San Antonio de Murcia, Guadalupe, 30107 Murcia, Spain
- Correspondence: (S.M.-G.); (P.C.-Z.); Tel.: +34-9681-286-02 (Ext. 951615) (P.C.-Z.)
| | - Pablo Conesa-Zamora
- Laboratory Medicine Department, Group of Molecular Pathology and Pharmacogenetics, Biomedical Research Institute from Murcia (IMIB), Hospital Universitario Santa Lucía, c/Mezquita sn, 30202 Cartagena, Spain
- Correspondence: (S.M.-G.); (P.C.-Z.); Tel.: +34-9681-286-02 (Ext. 951615) (P.C.-Z.)
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Montoro-García S, Alburquerque-González B, Bernabé-García Á, Bernabé-García M, Rodrigues PC, den-Haan H, Luque I, Nicolás FJ, Pérez-Sánchez H, Cayuela ML, Salo T, Conesa-Zamora P. Novel anti-invasive properties of a Fascin1 inhibitor on colorectal cancer cells. J Mol Med (Berl) 2020; 98:383-394. [PMID: 31996952 DOI: 10.1007/s00109-020-01877-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 12/05/2019] [Accepted: 01/15/2020] [Indexed: 01/01/2023]
Abstract
Tumor invasion and metastasis involve processes in which actin cytoskeleton rearrangement induced by Fascin1 plays a crucial role. Indeed, Fascin1 has been found overexpressed in tumors with worse prognosis. Migrastatin and its analogues target Fascin1 and inhibit its activity. However, there is need for novel and smaller Fascin1 inhibitors. The aim of this study was to assess the effect of compound G2 in colorectal cancer cell lines and compare it to migrastatin in in vitro and in vivo assays. Molecular modeling, actin-bundling, cell viability, inmunofluorescence, migration, and invasion assays were carried out in order to test anti-migratory and anti-invasive properties of compound G2. In addition, the in vivo effect of compound G2 was evaluated in a zebrafish model of invasion. HCT-116 cells exhibited the highest Fascin1 expression from eight tested colorectal cancer cell lines. Compound G2 showed important inhibitory effects on actin bundling, filopodia formation, migration, and invasion in different cell lines. Moreover, compound G2 treatment resulted in significant reduction of invasion of DLD-1 overexpressing Fascin1 and HCT-116 in zebrafish larvae xenografts; this effect being less evident in Fascin1 known-down HCT-116 cells. This study proves, for the first time, the in vitro and in vivo anti-tumoral activity of compound G2 on colorectal cancer cells and guides to design improved compound G2-based Fascin1 inhibitors. KEY MESSAGES: • Fascin is crucial for tumor invasion and metastasis and is overexpressed in bad prognostic tumors. • Several adverse tumors overexpress Fascin1 and lack targeted therapy. • Anti-fascin G2 is for the first time evaluated in colorectal carcinoma and compared with migrastatin. • Filopodia formation, migration activity, and invasion in vitro and in vivo assays were performed. • G2 blocks actin structures, migration, and invasion of colorectal cancer cells as fascin-dependent.
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Affiliation(s)
- Silvia Montoro-García
- Cell Culture Lab. Health Faculty, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos, s/n, Guadalupe, 30107, Murcia, Spain.
| | - Begoña Alburquerque-González
- Pathology and Histology Department. Heatlh Faculty, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos, s/n, Guadalupe, 30107, Murcia, Spain
| | - Ángel Bernabé-García
- Molecular Oncology and TGF-ß Lab, Biomedical Research Institute of Murcia (IMIB-Arrixaca), Carretera Madrid-Cartagena. El Palmar, Murcia, Spain
| | - Manuel Bernabé-García
- Telomerase, Cancer and Aging Group, University Clinical Hospital "Virgen de la Arrixaca", Biomedical Research Institute of Murcia (IMIB-Arrixaca) Murcia, Murcia, Spain
| | - Priscila Campioni Rodrigues
- Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Aapistie 5A, FI-90220, Oulu, Finland.,Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Helena den-Haan
- Eurofins Villapharma Research, Parque Tecnológico de Fuente Álamo. Ctra. El Estrecho-Lobosillo, Km 2,5. Av. Azul E, 30320, Murcia, Spain
| | - Irene Luque
- Department of Physical Chemistry and Institute of Biotechnology, University of Granada, Campus Fuentenueva s/n 18071 Granada, Granada, Spain
| | - Francisco José Nicolás
- Molecular Oncology and TGF-ß Lab, Biomedical Research Institute of Murcia (IMIB-Arrixaca), Carretera Madrid-Cartagena. El Palmar, Murcia, Spain
| | - Horacio Pérez-Sánchez
- Structural Bioinformatics and High Performance Computing (BIO-HPC) Research Group, Universidad Católica de Murcia (UCAM), Guadalupe, Spain
| | - María Luisa Cayuela
- Telomerase, Cancer and Aging Group, University Clinical Hospital "Virgen de la Arrixaca", Biomedical Research Institute of Murcia (IMIB-Arrixaca) Murcia, Murcia, Spain
| | - Tuula Salo
- Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Aapistie 5A, FI-90220, Oulu, Finland.,Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland.,Institute of Oral and Maxillofacial Disease, University of Helsinki, Helsinki, Finland.,HUSLAB, Department of Pathology, Helsinki University Hospital, Helsinki, Finland
| | - Pablo Conesa-Zamora
- Pathology and Histology Department. Heatlh Faculty, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos, s/n, Guadalupe, 30107, Murcia, Spain. .,Clinical Analysis Department, Group of Molecular Pathology and Pharmacogenetics, Biomedical Research Institute from Murcia (IMIB), Hospital Universitario Santa Lucía, c/Mezquita sn, 30202, Cartagena, Spain.
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Liarte S, Bernabé-García Á, Armero-Barranco D, Nicolás FJ. Microscopy Based Methods for the Assessment of Epithelial Cell Migration During In Vitro Wound Healing. J Vis Exp 2018. [PMID: 29364245 DOI: 10.3791/56799] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Cell migration is a mandatory aspect for wound healing. Creating artificial wounds on research animal models often results in costly and complicated experimental procedures, while potentially lacking in precision. In vitro culture of epithelial cell lines provides a suitable platform for researching the cell migratory behavior in wound healing and the impact of treatments on these cells. The physiology of epithelial cells is often studied in non-confluent conditions; however, this approach may not resemble natural wound healing conditions. Disrupting the epithelium integrity by mechanical means generates a realistic model, but may impede the application of molecular techniques. Consequently, microscopy based techniques are optimal for studying epithelial cell migration in vitro. Here we detail two specific methods, the artificial wound scratch assay and the artificial migration front assay, that can obtain quantitative and qualitative data, respectively, on the migratory performance of epithelial cells.
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Affiliation(s)
- Sergio Liarte
- Laboratorio de Oncología Molecular y TGF-β, IMIB-Arrixaca
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9
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Liarte S, Alonso-Romero JL, Nicolás FJ. SIRT1 and Estrogen Signaling Cooperation for Breast Cancer Onset and Progression. Front Endocrinol (Lausanne) 2018; 9:552. [PMID: 30319540 PMCID: PMC6170604 DOI: 10.3389/fendo.2018.00552] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/30/2018] [Indexed: 01/10/2023] Open
Abstract
Breast cancer remains a significant female mortality cause. It constitutes a multifactorial disease for which research on environmental factors offers little help in predicting onset or progression. The pursuit for its foundations by analyzing hormonal changes as a motive for disease development, indicates that increased exposure to estrogens associates with increased risk. A prevalent number of breast cancer cases show dependence on the increased activity of the classic nuclear estrogen receptor (ER) for cell proliferation and survival. SIRT1 is a Type III histone deacetylase which is receiving increasing attention due to its ability to perform activities over relevant non-histone proteins and transcription factors. Interestingly, concomitant SIRT1 overexpression is commonly found in ER-positive breast cancer cases. Both proteins had been shown to directly interact, in a process related to altered intracellular signaling and aberrant transcription, then promoting tumor progression. Moreover, SIRT1 activities had been also linked to estrogenic effects through interaction with the G-protein coupled membrane bound estrogen receptor (GPER). This work aims to summarize present knowledge on the interplay between SIRT1 and ER/GPER for breast cancer onset and progression. Lastly, evidences on the ability of SIRT1 to interact with TGFß signaling, a concurrent pathway significantly involved in breast cancer progression, are reported. The potential of this research field for the development of innovative strategies in the assessment of orphan breast cancer subtypes, such as triple negative breast cancer (TNBC), is discussed.
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Affiliation(s)
- Sergio Liarte
- Laboratorio de Oncología Molecular y TGFβ, Instituto Murciano de Investigaciones Biosanitarias Arrixaca, Murcia, Spain
- *Correspondence: Sergio Liarte
| | | | - Francisco José Nicolás
- Laboratorio de Oncología Molecular y TGFβ, Instituto Murciano de Investigaciones Biosanitarias Arrixaca, Murcia, Spain
- Francisco José Nicolás
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García-Vizcaíno EM, Liarte S, Alonso-Romero JL, Nicolás FJ. Sirt1 interaction with active Smad2 modulates transforming growth factor-β regulated transcription. Cell Commun Signal 2017; 15:50. [PMID: 29187201 PMCID: PMC5706420 DOI: 10.1186/s12964-017-0205-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 11/16/2017] [Indexed: 12/13/2022] Open
Abstract
Background The simplicity of Transforming Growth Factor ß (TGFβ) signaling pathway, linear and non-amplified, hardly sustains its variety of responses. This is often justified by the complex regulation showed by Smad proteins, TGFβ signaling intracellular transducers, object of post-translational modifications that modulate TGFβ-dependent transcription. Protein acetylation is emerging as a compelling mechanism affecting the activities of significant transcription factors, including p53, FOXO or NF-kB. Smad proteins might be controlled by this mechanism, implying that accessory factors capable of altering Smads-transcriptional complexes acetylation status and hence regulate TGFβ responses remain to be identified. Understanding this interaction may help in the assessment of TGFβ signaling outcomes, extending from healthy physiology to pathological conditions and cancer. Methods A two-hybrid chimera interacting system allowed to identify Sirt1, a NAD+ dependent type III histone deacetylase, as a novel Smad2 interactor. Several well stablished cellular models were applied to characterize this interaction by means of co-immunoprecipitation of tagged proteins and immuno-fluorescence staining. The occurrence of the interaction at Smad2 driven transcriptomic complexes was studied by means of DNA-pull-down and chromatin immunoprecipitation (ChIP), while its effects were assessed by protein over-expression and siRNA applied into a TGFβ-dependent reporter gene assay. Results The interaction was confirmed and observed to be enhanced upon Smad2 acetylation, a known feature of active and nuclear Smad2. However, Sirt1 did not play a major role in Smad2 deacetylation. Anti-Sirt1 ChIP showed increased recovery of promoter regions corresponding to Smad2-driven genes after TGFβ-stimulation, while its occurrence at Smad2-dependent transcriptomic complexes on DNA was found to effectively modulate gene expression. Conclusions Sirt1 presence on Smad2-driven TGFβ-dependent regulatory elements was detected and found to increase after TGFβ treatment. Moreover, Sirt1 overexpression resulted in a decrease of the activity of a Smad2-driven TGFβ-dependent reporter gene, while Sirt1 interference increased its activity. This would confirm the relevance of the discovered Sirt1-Smad2 interaction for the regulation of TGFβ-dependent gene transcription. Electronic supplementary material The online version of this article (10.1186/s12964-017-0205-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Eva María García-Vizcaíno
- Laboratorio de Oncología Molecular y TGFβ, Instituto Murciano de Investigaciones Biosanitarias Arrixaca, El Palmar, Murcia, Spain
| | - Sergio Liarte
- Laboratorio de Oncología Molecular y TGFβ, Instituto Murciano de Investigaciones Biosanitarias Arrixaca, El Palmar, Murcia, Spain
| | - José Luis Alonso-Romero
- Servicio de Oncología, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Francisco José Nicolás
- Laboratorio de Oncología Molecular y TGFβ, Instituto Murciano de Investigaciones Biosanitarias Arrixaca, El Palmar, Murcia, Spain.
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Ruiz-Cañada C, Bernabé-García Á, Liarte S, Insausti CL, Angosto D, Moraleda JM, Castellanos G, Nicolás FJ. Amniotic membrane stimulates cell migration by modulating transforming growth factor-β signalling. J Tissue Eng Regen Med 2017. [PMID: 28621502 DOI: 10.1002/term.2501] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Keratinocyte migration is a mandatory aspect of wound healing. We have previously shown that amniotic membrane (AM) applied to chronic wounds assists healing through a process resulting in the overexpression of c-Jun at the wound's leading edge. We have also demonstrated that AM modifies the genetic programme induced by transforming growth factor-ß (TGF-ß) in chronic wounds. Here we used a scratch assay of mink lung epithelial cells (Mv1Lu) and a spontaneously immortalized human keratinocyte cell line (HaCaT) cells to examine the influence of AM application on the underlying signalling during scratch closure. AM application induced c-Jun phosphorylation at the leading edge of scratch wounds in a process dependent on MAPK and JNK signalling. Strikingly, when the TGF-ß-dependent Smad-activation inhibitor SB431542 was used together with AM, migration improvement was partially restrained, whereas the addition of TGF-ß had a synergistic effect on the AM-induced cell migration. Moreover, antagonizing TGF-ß with specific antibodies in both cell lines or knocking out TGF-ß receptors in Mv1Lu cells had similar effects on cell migration as using SB431542. Furthermore, we found that AM was able to attenuate TGF-ß-Smad signalling specifically at the migrating edge; AM treatment abated Smad2 and Smad3 nuclear localization in response to TGF-ß in a process dependent on mitogen-activated protein kinase kinase 1 (MEK1) activation but independent of EGF receptor or JNK activation. The involvement of Smad signalling on AM effects on HaCaT keratinocytes was further corroborated by overexpression of either Smad2 or Smad3 and the use of Smad phosphorylation-specific inhibitors, revealing a differential influence on AM-induced migration for each Smad. Thus, AM TGF-ß-Smad signalling abating is essential for optimal cell migration and wound closure.
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Affiliation(s)
| | | | - Sergio Liarte
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, Murcia, Spain
| | - Carmen Luisa Insausti
- Unidad de Trasplante y Terapia Celular, Servicio Hematología, Hospital Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia, Spain
| | - Diego Angosto
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, Murcia, Spain
| | - José M Moraleda
- Unidad de Trasplante y Terapia Celular, Servicio Hematología, Hospital Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia, Spain
| | - Gregorio Castellanos
- Servicio de Cirugía, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
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Bernabé-García Á, Armero-Barranco D, Liarte S, Ruzafa-Martínez M, Ramos-Morcillo AJ, Nicolás FJ. Oleanolic acid induces migration in Mv1Lu and MDA-MB-231 epithelial cells involving EGF receptor and MAP kinases activation. PLoS One 2017; 12:e0172574. [PMID: 28231262 PMCID: PMC5323077 DOI: 10.1371/journal.pone.0172574] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 02/07/2017] [Indexed: 11/26/2022] Open
Abstract
During wound healing, skin function is restored by the action of several cell types that undergo differentiation, migration, proliferation and/or apoptosis. These dynamics are tightly regulated by the evolution of the extra cellular matrix (ECM) contents along the process. Pharmacologically active flavonoids have shown to exhibit useful physiological properties interesting in pathological states. Among them, oleanolic acid (OA), a pentacyclic triterpene, shows promising properties over wound healing, as increased cell migration in vitro and improved wound resolution in vivo. In this paper, we pursued to disclose the molecular mechanisms underlying those effects, by using an in vitro scratch assay in two epithelial cell lines of different linage: non-malignant mink lung epithelial cells, Mv1Lu; and human breast cancer cells, MDA-MB-231. In every case, we observed that OA clearly enhanced cell migration for in vitro scratch closure. This correlated with the stimulation of molecular pathways related to mitogen-activated protein (MAP) kinases, as ERK1,2 and Jun N-terminal kinase (JNK) 1,2 activation and c-Jun phosphorylation. Moreover, MDA-MB-231 cells treated with OA displayed an altered gene expression profile affecting transcription factor genes (c-JUN) as well as proteins involved in migration and ECM dynamics (PAI1), in line with the development of an epithelial to mesenchymal transition (EMT) status. Strikingly, upon OA treatment, we observed changes in the epidermal growth factor receptor (EGFR) subcellular localization, while interfering with its signalling completely prevented migration effects. This data provides a physiological framework supporting the notion that lipophilic plant extracts used in traditional medicine, might modulate wound healing processes in vivo through its OA contents. The molecular implications of these observations are discussed.
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Affiliation(s)
- Ángel Bernabé-García
- Laboratorio de Oncología Molecular y TGF-ß, Instituto Murciano de Investigaciones Biosanitarias-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - David Armero-Barranco
- Departamento de Enfermería, Facultad Enfermería, Universidad de Murcia, Murcia, Spain
| | - Sergio Liarte
- Laboratorio de Oncología Molecular y TGF-ß, Instituto Murciano de Investigaciones Biosanitarias-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - María Ruzafa-Martínez
- Departamento de Enfermería, Facultad Enfermería, Universidad de Murcia, Murcia, Spain
| | | | - Francisco José Nicolás
- Laboratorio de Oncología Molecular y TGF-ß, Instituto Murciano de Investigaciones Biosanitarias-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
- * E-mail:
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Alcaraz A, Mrowiec A, Insausti CL, Bernabé-García Á, García-Vizcaíno EM, López-Martínez MC, Monfort A, Izeta A, Moraleda JM, Castellanos G, Nicolás FJ. Correction: Amniotic Membrane Modifies the Genetic Program Induced by TGFß, Stimulating Keratinocyte Proliferation and Migration in Chronic Wounds. PLoS One 2015; 10:e0141026. [PMID: 26469179 PMCID: PMC4607467 DOI: 10.1371/journal.pone.0141026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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15
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Alcaraz A, Mrowiec A, Insausti CL, Bernabé-García Á, García-Vizcaíno EM, López-Martínez MC, Monfort A, Izeta A, Moraleda JM, Castellanos G, Nicolás FJ. Amniotic Membrane Modifies the Genetic Program Induced by TGFß, Stimulating Keratinocyte Proliferation and Migration in Chronic Wounds. PLoS One 2015; 10:e0135324. [PMID: 26284363 PMCID: PMC4540284 DOI: 10.1371/journal.pone.0135324] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 07/21/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Post-traumatic large-surface or deep wounds often cannot progress to reepithelialisation because they become irresponsive in the inflammatory stage, so intervention is necessary to provide the final sealing epidermis. Previously we have shown that Amniotic Membrane (AM) induced a robust epithelialisation in deep traumatic wounds. METHODS AND FINDINGS To better understand this phenomenon, we used keratinocytes to investigate the effect of AM on chronic wounds. Using keratinocytes, we saw that AM treatment is able to exert an attenuating effect upon Smad2 and Smad3 TGFß-induced phosphorylation while triggering the activation of several MAPK signalling pathways, including ERK and JNK1, 2. This also has a consequence for TGFß-induced regulation on cell cycle control key players CDK1A (p21) and CDK2B (p15). The study of a wider set of TGFß regulated genes showed that the effect of AM was not wide but very concrete for some genes. TGFß exerted a powerful cell cycle arrest; the presence of AM however prevented TGFß-induced cell cycle arrest. Moreover, AM induced a powerful cell migration response that correlates well with the expression of c-Jun protein at the border of the healing assay. Consistently, the treatment with AM of human chronic wounds induced a robust expression of c-Jun at the wound border. CONCLUSIONS The effect of AM on the modulation of TGFß responses in keratinocytes that favours proliferation together with AM-induced keratinocyte migration is the perfect match that allows chronic wounds to move on from their non-healing state and progress into epithelialization. Our results may explain why the application of AM on chronic wounds is able to promote epithelialisation.
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Affiliation(s)
- Antonia Alcaraz
- Oncología Molecular y TGFß, Unidad de Investigación, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Anna Mrowiec
- Oncología Molecular y TGFß, Unidad de Investigación, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Carmen Luisa Insausti
- Unidad de Terapia Celular, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Ángel Bernabé-García
- Oncología Molecular y TGFß, Unidad de Investigación, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Eva María García-Vizcaíno
- Oncología Molecular y TGFß, Unidad de Investigación, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | | | - Asunción Monfort
- Instituto Biodonostia, Hospital Universitario Donostia, San Sebastian, Spain
| | - Ander Izeta
- Instituto Biodonostia, Hospital Universitario Donostia, San Sebastian, Spain
| | - José María Moraleda
- Unidad de Terapia Celular, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Gregorio Castellanos
- Servicio de Cirugía, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Francisco José Nicolás
- Oncología Molecular y TGFß, Unidad de Investigación, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
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Martínez-Mora C, Mrowiec A, García-Vizcaíno EM, Alcaraz A, Cenis JL, Nicolás FJ. Fibroin and sericin from Bombyx mori silk stimulate cell migration through upregulation and phosphorylation of c-Jun. PLoS One 2012; 7:e42271. [PMID: 22860103 PMCID: PMC3409175 DOI: 10.1371/journal.pone.0042271] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 07/02/2012] [Indexed: 01/08/2023] Open
Abstract
Wound healing is a biological process directed to the restoration of tissue that has suffered an injury. An important phase of wound healing is the generation of a basal epithelium able to wholly replace the epidermis of the wound. A broad range of products derived from fibroin and sericin from Bombyx mori silk are used to stimulate wound healing. However, so far the molecular mechanism underlying this phenomenon has not been elucidated. The aim of this work was to determine the molecular basis underlying wound healing properties of silk proteins using a cell model. For this purpose, we assayed fibroin and sericin in a wound healing scratch assay using MDA-MB-231 and Mv1Lu cells. Both proteins stimulated cell migration. Furthermore, treatment with sericin and fibroin involved key factors of the wound healing process such as upregulation of c-Jun and c-Jun protein phosphorylation. Moreover, fibroin and sericin stimulated the phosphorylation of ERK 1/2 and JNK 1/2 kinases. All these experiments were done in the presence of specific inhibitors for some of the cell signalling pathways referred above. The obtained results revealed that MEK, JNK and PI3K pathways are involved in fibroin and sericin stimulated cells migration. Inhibition of these three kinases prevented c-Jun upregulation and phosphorylation by fibroin or sericin. Fibroin and sericin were tested in the human keratinocyte cell line, HaCaT, with similar results. Altogether, our results showed that fibroin and sericin initiate cell migration by activating the MEK, JNK and PI3K signalling pathways ending in c-Jun activation.
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Affiliation(s)
- Celia Martínez-Mora
- Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), La Alberca, Murcia, Spain
| | - Anna Mrowiec
- Laboratorio de Oncología Molecular y TGF-ß, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Eva María García-Vizcaíno
- Laboratorio de Oncología Molecular y TGF-ß, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Antonia Alcaraz
- Laboratorio de Oncología Molecular y TGF-ß, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - José Luis Cenis
- Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), La Alberca, Murcia, Spain
| | - Francisco José Nicolás
- Laboratorio de Oncología Molecular y TGF-ß, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
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Nicolás FJ, Moore WJ, Zhang C, Clarke PR. XMog1, a nuclear Ran-binding protein in Xenopus, is a functional homologue of Schizosaccharomyces pombe Mog1p that co-operates with RanBP1 to control generation of Ran-GTP. J Cell Sci 2001; 114:3013-23. [PMID: 11686304 DOI: 10.1242/jcs.114.16.3013] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ran is a multifunctional small GTPase of the Ras superfamily that plays roles in nucleocytoplasmic transport, mitotic spindle assembly and nuclear envelope formation. By screening a Xenopus oocyte cDNA library for Ran-GTP-binding proteins using the two-hybrid system of co-expression in yeast, we identified XMog1, a 20.4 kDa polypeptide related to Mog1p in Saccharomyces cerevisiae and similar gene products in Schizosaccharomyces pombe, Arabidopsis and mammals. We show that cDNAs encoding XMog1 and S. cerevisiae Mog1p rescue the growth defect of S. pombe cells lacking mog1, demonstrating conservation of their functions. In Xenopus somatic cells and transfected mammalian cells, XMog1 is localised to the nucleus. XMog1 alone does not stimulate Ran GTPase activity or nucleotide exchange, but causes nucleotide release from Ran-GTP and forms a complex with nucleotide-free Ran. However, in combination with Ran-binding protein 1 (RanBP1), XMog1 promotes the release of GDP and the selective binding of GTP to Ran. XMog1 and RanBP1 also promote selective GTP loading onto Ran catalysed by the nuclear guanine nucleotide exchange factor, RCC1. We propose that Mog1-related proteins, together with RanBP1, facilitate the generation of Ran-GTP from Ran-GDP in the nucleus.
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Affiliation(s)
- F J Nicolás
- Biomedical Research Centre, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
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18
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Abstract
Smad4 plays a pivotal role in all transforming growth factor beta (TGF-beta) signaling pathways. Here we describe six widely expressed alternatively spliced variants of human Smad4 with deletions of different exons in the linker, the region of Smad4 that separates the two well-conserved MH1 and MH2 domains. All these Smad4 variants form complexes with activated Smad2 and Smad3 and are incorporated into DNA-binding complexes with the transcription factor Fast-1, regardless of the amount of linker they contain. However, sequences encoded by exons 5 to 7 in the linker are essential for transcriptional activation. Most importantly, our observation that different Smad4 isoforms have different subcellular localizations has led us to the identification of a functional CRM1-dependent nuclear export signal in the Smad4 linker and a constitutively active nuclear localization signal in the N-terminal MH1 domain. In the absence of TGF-beta signaling, we conclude that Smad4 is rapidly and continuously shuttling between the nucleus and the cytoplasm, the distribution of Smad4 between the nucleus and the cytoplasm being dictated by the relative strengths of the nuclear import and export signals. We demonstrate that inhibition of CRM1-mediated nuclear export by treatment of cells with leptomycin B results in endogenous Smad4 accumulating very rapidly in the nucleus. Endogenous Smad2 and Smad3 are completely unaffected by leptomycin B treatment, indicating that the nucleocytoplasmic shuttling is specific for Smad4. We propose that, upon TGF-beta signaling, complex formation between Smad4 and activated Smad2 or -3 leads to nuclear accumulation of Smad4 through inhibition of its nuclear export. We demonstrate that after prolonged TGF-beta signaling Smad2 becomes dephosphorylated and Smad2 and Smad4 accumulate back in the cytoplasm.
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Affiliation(s)
- C E Pierreux
- Laboratory of Developmental Signalling, Imperial Cancer Research Fund, London WC2A 3PX, United Kingdom
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Vives M, Porcel JM, Nicolás FJ, Rubio M. [Pleuro-pulmonary infection by Clostridium perfringens]. Enferm Infecc Microbiol Clin 1999; 17:196-7. [PMID: 10365519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Nicolás FJ, Zhang C, Hughes M, Goldberg MW, Watton SJ, Clarke PR. Xenopus Ran-binding protein 1: molecular interactions and effects on nuclear assembly in Xenopus egg extracts. J Cell Sci 1997; 110 ( Pt 24):3019-30. [PMID: 9365272 DOI: 10.1242/jcs.110.24.3019] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ran is a nuclear GTPase implicated in nucleocytoplasmic transport, the maintenance of nuclear structure, mRNA processing, and cell cycle regulation. By two-hybrid interaction in yeast, we have identified a Xenopus homologue of Ran-binding protein 1 (RanBP1). Xenopus RanBP1 interacts specifically with the GTP-bound form of Ran and forms complexes in Xenopus egg extracts with Ran, importin-beta/karyopherin-beta and importin-alpha/karyopherin-alpha, but not p10, p120/RanBP7, RanBP2 or other nucleoporins. These complexes may play roles in the recycling of Ran and importins/karyopherins during nucleocytoplasmic transport. Increased concentrations of RanBP1 stabilise an interaction between Ran and RCC1 in egg extracts, inhibiting the exchange activity of RCC1 towards Ran. Under these conditions, the assembly of nuclei from chromatin is dramatically affected: the nuclei do not assemble a lamina and become very small with homogeneously condensed chromatin. They fail to actively import proteins and do not undergo DNA replication. By field emission in-lens scanning electron microscopy, we show that these nuclei have an intact nuclear envelope containing pore complexes, but the envelope is highly convoluted. However, RanBP1 does not directly inhibit nuclear protein import in assembled nuclei. These results suggest that RCC1 and/or Ran have a function early in nuclear assembly that is disrupted by RanBP1.
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Affiliation(s)
- F J Nicolás
- Zeneca Laboratory of Molecular and Cellular Biology, School of Biological Sciences, University of Manchester, Manchester M13 9PT, UK
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Abstract
The Gram-negative bacterium Myxococcus xanthus responds to blue light by producing carotenoid pigments (Car+ phenotype). Genes for carotenoid synthesis lie at two unlinked chromosomal sites, the carC and the carBA operon, but are integrated in a single "light regulon" by the action of common trans-acting regulatory elements. Three known regulatory genes are grouped together at the (light-inducible) carQRS operon. By screening the Car phenotype of a large collection of transposon-induced mutants, we have identified a new car locus that has been named carD (carD1 for the mutant allele). The carD gene product plays a critical role in the light regulon, as it is required for activation of the carQRS and carC promoters by blue light. The carD1 mutant is impaired in the (starvation-induced) developmental process that allows M. xanthus cells both to form multicellular fruiting bodies and to sporulate. Our results indicate that the carD gene product is also required for the expression of a particular set of development-specific genes that are normally activated through the action of intercellular signals.
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Affiliation(s)
- F J Nicolás
- Departamento de Genética y Microbiología, Facultad de Biología, Universidad de Murcia, Spain
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