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Clinical Application of Stem Cells in Regeneration Medicine—Part II

A special issue of Journal of Clinical Medicine (ISSN 2077-0383). This special issue belongs to the section "Clinical Laboratory Medicine".

Deadline for manuscript submissions: closed (20 September 2024) | Viewed by 3277

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Guest Editor
1. Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
2. CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 08003 Madrid, Spain
Interests: mesenchymal stem cells; regenerative medicine; diabetes; wound healing; exosomes; extracellular vesicles; aging
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Special Issue Information

Dear Colleagues,

The purpose of regenerative medicine is to restore the structure and function of damaged tissues or organs. In the body, different types of stem cells distributed in several tissues maintain homeostasis and tissue regenerative capacity. Stem cells have been isolated and expanded from different sources, including bone marrow, adipose tissue, and umbilical cords. Due to their differentiation and immunomodulatory capacity, the use of stem cells as a tool in regenerative medicine has been expanding. Stem cells are currently being used in the clinic through cell therapy techniques by means of autologous or allogeneic transplantation. Thus, thousands of studies related to stem cells and cell therapy can currently be found in the ClinicalTrials.gov database. In addition to cell therapy, the induction of the mobilization of circulating stem cells is another strategy to favor the regeneration of damaged tissues. Along with these possibilities, stem-cell-derived extracellular vesicles have recently been shown to have immunomodulatory and regenerative properties. This is allowing for the development of cell-free therapies for regenerative purposes. In view of the increasing knowledge of the possible alternatives for the use of stem cells at the clinical level, the aim of this Special Issue is to share the latest advances in the clinical application of stem cells or their extracellular vesicles in regenerative medicine.

Dr. Antonio Casado-Díaz
Guest Editor

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Keywords

  • stem cells
  • regenerative medicine
  • extracellular vesicles
  • cell therapy
  • stem cell preconditioning
  • stem cell mobilization

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Published Papers (2 papers)

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Research

25 pages, 2470 KiB  
Article
Combined Effects of Cyclic Hypoxic and Mechanical Stimuli on Human Bone Marrow Mesenchymal Stem Cell Differentiation: A New Approach to the Treatment of Bone Loss
by Marta Camacho-Cardenosa, Victoria Pulido-Escribano, Bárbara Torrecillas-Baena, Jose Manuel Quesada-Gómez, Aura D. Herrera-Martínez, Rafael R. Sola-Guirado, Gabriel Dorado, María Ángeles Gálvez-Moreno and Antonio Casado-Díaz
J. Clin. Med. 2024, 13(19), 5805; https://doi.org/10.3390/jcm13195805 - 28 Sep 2024
Viewed by 1165
Abstract
Background: The prevention and treatment of bone loss and osteoporotic fractures is a public health challenge. Combined with normobaric hypoxia, whole-body vibration has a high clinic potential in bone health and body composition. The effect of this therapy may be mediated by its [...] Read more.
Background: The prevention and treatment of bone loss and osteoporotic fractures is a public health challenge. Combined with normobaric hypoxia, whole-body vibration has a high clinic potential in bone health and body composition. The effect of this therapy may be mediated by its action on bone marrow mesenchymal stem cells (MSCs). Objectives: Evaluate the effects of cyclic low-vibration stimuli and/or hypoxia on bone marrow-derived human MSC differentiation. Methods: MSCs were exposed four days per week, two hours/day, to hypoxia (3% O2) and/or vibration before they were induced to differentiate or during differentiation into osteoblasts or adipocytes. Gene and protein expression of osteoblastic, adipogenic, and cytoskeletal markers were studied, as well as extracellular matrix mineralization and lipid accumulation. Results: early osteoblastic markers increased in undifferentiated MSCs, pretreated in hypoxia and vibration. This pretreatment also increased mRNA levels of osteoblastic genes and beta-catenin protein in the early stages of differentiation into osteoblasts without increasing mineralization. When MSCs were exposed to vibration under hypoxia or normoxia during osteoblastic differentiation, mineralization increased with respect to cultures without vibrational stimuli. In MSCs differentiated into adipocytes, both in those pretreated as well as exposed to different conditions during differentiation, lipid formation decreased. Changes in adipogenic gene expression and increased beta-catenin protein were observed in cultures treated during differentiation. Conclusions: Exposure to cyclic hypoxia in combination with low-intensity vibratory stimuli had positive effects on osteoblastic differentiation and negative ones on adipogenesis of bone marrow-derived MSCs. These results suggest that in elderly or frail people with difficulty performing physical activity, exposure to normobaric cyclic hypoxia and low-density vibratory stimuli could improve bone metabolism and health. Full article
(This article belongs to the Special Issue Clinical Application of Stem Cells in Regeneration Medicine—Part II)
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17 pages, 6466 KiB  
Article
The Effect of Cell Culture Passage on the Efficacy of Mesenchymal Stromal Cells as a Cell Therapy Treatment
by MDolores Carmona-Luque, Antonio Ballesteros-Ribelles, Alejandro Millán-López, Alfonso Blanco, Sonia Nogueras and Concha Herrera
J. Clin. Med. 2024, 13(9), 2480; https://doi.org/10.3390/jcm13092480 - 24 Apr 2024
Viewed by 1495
Abstract
Background/Objective: Mesenchymal Stromal Cells (MSCs) have been considered a promising treatment for several diseases, such as cardiac injuries. Many studies have analyzed their functional properties; however, few studies have characterized MSCs through successive culture passages. The main objective of this work was to [...] Read more.
Background/Objective: Mesenchymal Stromal Cells (MSCs) have been considered a promising treatment for several diseases, such as cardiac injuries. Many studies have analyzed their functional properties; however, few studies have characterized MSCs through successive culture passages. The main objective of this work was to analyze the phenotype and functionality of MSCs isolated from two different sources in five culture passages to determine if the culture passage might influence the efficacy of MSCs as a cell therapy treatment. Methods: Bone Marrow (BM)-MSCs were harvested from the femur of Wistar rats (n = 17) and Adipose Tissue(AT)-MSCs were isolated from inguinal fat (n = 17). MSCs were cultured for five culture passages, and the immunophenotype was analyzed by flow cytometry, the functionality was characterized by adipogenic, osteogenic, and chondrogenic differentiation assays, and cytokine secretion capacity was determined through the quantification of the Vascular Endothelial Growth-Factor, Fibroblast Growth-Factor2, and Transforming Growth-Factorβ1 in the cell supernatant. The ultrastructure of MSCs was analyzed by transmission electron microscopy. Results: BM-MSCs exhibited typical phenotypes in culture passages two, four, and five, and their differentiation capacity showed an irregular profile throughout the five culture passages analyzed. AT-MSCs showed a normal phenotype and differentiation capacity in all the culture passages. BM- and AT-MSCs did not modify their secretion ability or ultrastructural morphology. Conclusions: Throughout the culture passages, BM-MSCs, but not AT-MSCs, exhibited changes in their functional and phenotypic characteristic that might affect their efficacy as a cell therapy treatment. Therefore, the culture passage selected should be considered for the application of MSCs as a cell therapy treatment. Full article
(This article belongs to the Special Issue Clinical Application of Stem Cells in Regeneration Medicine—Part II)
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