scholarly journals Physiological Regeneration of Skin Appendages and Implications for Regenerative Medicine

Physiology ◽  
2012 ◽  
Vol 27 (2) ◽  
pp. 61-72 ◽  
Author(s):  
Cheng-Ming Chuong ◽  
Valerie A. Randall ◽  
Randall B. Widelitz ◽  
Ping Wu ◽  
Ting-Xin Jiang
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Physiological Regeneration ◽  
Physiological Processes ◽  
Body Regions ◽  
Skin Appendages ◽  
Regeneration Of Skin

The concept of regenerative medicine is relatively new, but animals are well known to remake their hair and feathers regularly by normal regenerative physiological processes. Here, we focus on 1) how extrafollicular environments can regulate hair and feather stem cell activities and 2) how different configurations of stem cells can shape organ forms in different body regions to fulfill changing physiological needs.

scholarly journals Stem cell therapies and benefaction of somatic cell nuclear transfer cloning in COVID-19 era

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Birbal Singh ◽  
Gorakh Mal ◽  
Vinod Verma ◽  
Ruchi Tiwari ◽  
Muhammad Imran Khan ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Somatic Cell ◽  
Somatic Cell Nuclear Transfer ◽  
Nuclear Transfer ◽  
Drug Testing ◽  
Human Interaction ◽  
Patient Specific ◽  
Wide Range

Abstract Background The global health emergency of COVID-19 has necessitated the development of multiple therapeutic modalities including vaccinations, antivirals, anti-inflammatory, and cytoimmunotherapies, etc. COVID-19 patients suffer from damage to various organs and vascular structures, so they present multiple health crises. Mesenchymal stem cells (MSCs) are of interest to treat acute respiratory distress syndrome (ARDS) caused by SARS-CoV-2 infection. Main body Stem cell-based therapies have been verified for prospective benefits in copious preclinical and clinical studies. MSCs confer potential benefits to develop various cell types and organoids for studying virus-human interaction, drug testing, regenerative medicine, and immunomodulatory effects in COVID-19 patients. Apart from paving the ways to augment stem cell research and therapies, somatic cell nuclear transfer (SCNT) holds unique ability for a wide range of health applications such as patient-specific or isogenic cells for regenerative medicine and breeding transgenic animals for biomedical applications. Being a potent cell genome-reprogramming tool, the SCNT has increased prominence of recombinant therapeutics and cellular medicine in the current era of COVID-19. As SCNT is used to generate patient-specific stem cells, it avoids dependence on embryos to obtain stem cells. Conclusions The nuclear transfer cloning, being an ideal tool to generate cloned embryos, and the embryonic stem cells will boost drug testing and cellular medicine in COVID-19.

Regenerative medicine and traumatic brain injury: from stem cell to cell-free therapeutic strategies

2021 ◽  
Author(s):  
Lianxu Cui ◽  
Yasmeen Saeed ◽  
Haomin Li ◽  
Jingli Yang
Keyword(s):  
Traumatic Brain Injury ◽  
Stem Cells ◽  
Stem Cell ◽  
Brain Injury ◽  
Regenerative Medicine ◽  
Cell Therapy ◽  
Therapeutic Strategies ◽  
Study Data ◽  
Health Concern ◽  
Standardized Treatment

Traumatic brain injury (TBI) is a serious health concern, yet there is a lack of standardized treatment to combat its long-lasting effects. The objective of the present study was to provide an overview of the limitation of conventional stem cell therapy in the treatment of TBI and to discuss the application of novel acellular therapies and their advanced strategies to enhance the efficacy of stem cells derived therapies in the light of published study data. Moreover, we also discussed the factor to optimize the therapeutic efficiency of stem cell-derived acellular therapy by overcoming the challenges for its clinical translation. Hence, we concluded that acellular therapy possesses the potential to bring a breakthrough in the field of regenerative medicine to treat TBI.

scholarly journals Impact of Graphene Derivatives as Artificial Extracellular Matrices on Mesenchymal Stem Cells

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 379
Author(s):  
Rabia Ikram ◽  
Shamsul Azlin Ahmad Shamsuddin ◽  
Badrul Mohamed Jan ◽  
Muhammad Abdul Qadir ◽  
George Kenanakis ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Cell Types ◽  
Biological Properties ◽  
Research Progress ◽  
Differentiation Potential ◽  
Graphene Derivatives ◽  
Potential Applicability

Thanks to stem cells’ capability to differentiate into multiple cell types, damaged human tissues and organs can be rapidly well-repaired. Therefore, their applicability in the emerging field of regenerative medicine can be further expanded, serving as a promising multifunctional tool for tissue engineering, treatments for various diseases, and other biomedical applications as well. However, the differentiation and survival of the stem cells into specific lineages is crucial to be exclusively controlled. In this frame, growth factors and chemical agents are utilized to stimulate and adjust proliferation and differentiation of the stem cells, although challenges related with degradation, side effects, and high cost should be overcome. Owing to their unique physicochemical and biological properties, graphene-based nanomaterials have been widely used as scaffolds to manipulate stem cell growth and differentiation potential. Herein, we provide the most recent research progress in mesenchymal stem cells (MSCs) growth, differentiation and function utilizing graphene derivatives as extracellular scaffolds. The interaction of graphene derivatives in human and rat MSCs has been also evaluated. Graphene-based nanomaterials are biocompatible, exhibiting a great potential applicability in stem-cell-mediated regenerative medicine as they may promote the behaviour control of the stem cells. Finally, the challenges, prospects and future trends in the field are discussed.

scholarly journals Stem Cell Based Tissue Engineering and Regenerative Medicine: A Review Focusing on Adult Stem Cells

2012 ◽  
Vol 1 (1) ◽  
pp. 75-82
Author(s):  
Jordan Greenberg ◽  
Veronica Fortino ◽  
Daniel Pelaez ◽  
Herman S. Cheung
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Adult Stem Cells

scholarly journals Advances in Pluripotent Stem Cells: History, Mechanisms, Technologies, and Applications

2019 ◽  
Vol 16 (1) ◽  
pp. 3-32 ◽  
Author(s):  
Gele Liu ◽  
Brian T. David ◽  
Matthew Trawczynski ◽  
Richard G. Fessler
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Pluripotent Stem Cells ◽  
Cell Biology ◽  
Ethical Issues ◽  
Three Dimensional ◽  
Future Research ◽  
Cell Technology

AbstractOver the past 20 years, and particularly in the last decade, significant developmental milestones have driven basic, translational, and clinical advances in the field of stem cell and regenerative medicine. In this article, we provide a systemic overview of the major recent discoveries in this exciting and rapidly developing field. We begin by discussing experimental advances in the generation and differentiation of pluripotent stem cells (PSCs), next moving to the maintenance of stem cells in different culture types, and finishing with a discussion of three-dimensional (3D) cell technology and future stem cell applications. Specifically, we highlight the following crucial domains: 1) sources of pluripotent cells; 2) next-generation in vivo direct reprogramming technology; 3) cell types derived from PSCs and the influence of genetic memory; 4) induction of pluripotency with genomic modifications; 5) construction of vectors with reprogramming factor combinations; 6) enhancing pluripotency with small molecules and genetic signaling pathways; 7) induction of cell reprogramming by RNA signaling; 8) induction and enhancement of pluripotency with chemicals; 9) maintenance of pluripotency and genomic stability in induced pluripotent stem cells (iPSCs); 10) feeder-free and xenon-free culture environments; 11) biomaterial applications in stem cell biology; 12) three-dimensional (3D) cell technology; 13) 3D bioprinting; 14) downstream stem cell applications; and 15) current ethical issues in stem cell and regenerative medicine. This review, encompassing the fundamental concepts of regenerative medicine, is intended to provide a comprehensive portrait of important progress in stem cell research and development. Innovative technologies and real-world applications are emphasized for readers interested in the exciting, promising, and challenging field of stem cells and those seeking guidance in planning future research direction.

RESEARCH FINDINGS

2011 ◽  
Vol 15 (12) ◽  
pp. 43-44
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Kawasaki Disease ◽  
Regenerative Medicine ◽  
Embryonic Stem Cell ◽  
Human Embryonic Stem Cell ◽  
Embryonic Stem ◽  
Medicine Research ◽  
Research Findings ◽  
Cell Study

Singapore Scientists Lead Human Embryonic Stem Cell Study to Advance Regenerative Medicine Research. Singapore Scientists Discover Genetic Link in Kawasaki Disease. Stem Cells Engineered to Kill Cancer.

scholarly journals Designing stem cell niches for differentiation and self-renewal

2018 ◽  
Vol 15 (145) ◽  
pp. 20180388 ◽  
Author(s):  
Hannah Donnelly ◽  
Manuel Salmeron-Sanchez ◽  
Matthew J. Dalby
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Regulatory Networks ◽  
Regulatory Mechanisms ◽  
Great Promise ◽  
Regenerative Capacity ◽  
Cell Niche ◽  
Stem Cell Niches

Mesenchymal stem cells, characterized by their ability to differentiate into skeletal tissues and self-renew, hold great promise for both regenerative medicine and novel therapeutic discovery. However, their regenerative capacity is retained only when in contact with their specialized microenvironment, termed the stem cell niche . Niches provide structural and functional cues that are both biochemical and biophysical, stem cells integrate this complex array of signals with intrinsic regulatory networks to meet physiological demands. Although, some of these regulatory mechanisms remain poorly understood or difficult to harness with traditional culture systems. Biomaterial strategies are being developed that aim to recapitulate stem cell niches, by engineering microenvironments with physiological-like niche properties that aim to elucidate stem cell-regulatory mechanisms, and to harness their regenerative capacity in vitro . In the future, engineered niches will prove important tools for both regenerative medicine and therapeutic discoveries.

Realistic Prospects for Stem Cell Therapeutics

Hematology ◽  
2003 ◽  
Vol 2003 (1) ◽  
pp. 398-418 ◽  
Author(s):  
George Q. Daley ◽  
Margaret A. Goodell ◽  
Evan Y. Snyder
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Cell Biology ◽  
Adult Stem Cells ◽  
Stem Cell Biology ◽  
Cell Therapies ◽  
The Media ◽  
New Treatment ◽  
Definition Of

Abstract Studies of the regenerating hematopoietic system have led to the definition of many of the fundamental principles of stem cell biology. Therapies based on a range of tissue stem cells have been widely touted as a new treatment modality, presaging an emerging new specialty called regenerative medicine that promises to harness stem cells from embryonic and somatic sources to provide replacement cell therapies for genetic, malignant, and degenerative conditions. Insights borne from stem cell biology also portend development of protein and small molecule therapeutics that act on endogenous stem cells to promote repair and regeneration. Much of the newfound enthusiasm for regenerative medicine stems from the hope that advances in the laboratory will be followed soon thereafter by breakthrough treatments in the clinic. But how does one sort through the hype to judge the true promise? Are stem cell biologists and the media building expectations that cannot be met? Which diseases can be treated, and when can we expect success? In this review, we outline the realms of investigation that are capturing the most attention, and consider the current state of scientific understanding and controversy regarding the properties of embryonic and somatic (adult) stem cells. Our objective is to provide a framework for appreciating the promise while at the same time understanding the challenges behind translating fundamental stem cell biology into novel clinical therapies.

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