scholarly journals Metanephric mesenchyme contains multipotent stem cells whose fate is restricted after induction

Development ◽  
1992 ◽  
Vol 114 (3) ◽  
pp. 565-572 ◽  
Author(s):  
D. Herzlinger ◽  
C. Koseki ◽  
T. Mikawa ◽  
Q. al-Awqati

At least fourteen epithelial cell types of the mammalian nephron develop from the metanephric mesenchyme. To distinguish whether this single embryological primordium contains a heterogenous population of committed renal cell lines or a multipotent stem cell, the lac-Z gene was introduced into individual renal progenitors by retroviral mediated gene transfer. The differentiated fate of lac-Z-tagged daughters derived from single metanephric mesenchymal cells was characterized after cytodifferentiation. We found that the metanephric mesenchyme contains multipotent stem cells that can generate at least three distinct cell types; glomerular, proximal and distal epithelia. After induction the fate of this multipotent cell becomes restricted to populate a single nephron segment.

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Chengguang Wu ◽  
Long Chen ◽  
Yi-zhou Huang ◽  
Yongcan Huang ◽  
Ornella Parolini ◽  
...  

Human multipotent stem cell-based therapies have shown remarkable potential in regenerative medicine and tissue engineering applications due to their abilities of self-renewal and differentiation into multiple adult cell types under appropriate conditions. Presently, human multipotent stem cells can be isolated from different sources, but variation among their basic biology can result in suboptimal selection of seed cells in preclinical and clinical research. Thus, the goal of this study was to compare the biological characteristics of multipotent stem cells isolated from human bone marrow, placental decidua basalis, and urine, respectively. First, we found that urine-derived stem cells (USCs) displayed different morphologies compared with other stem cell types. USCs and placenta decidua basalis-derived mesenchymal stem cells (PDB-MSCs) had superior proliferation ability in contrast to bone marrow-derived mesenchymal stem cells (BMSCs); these cells grew to have the highest colony-forming unit (CFU) counts. In phenotypic analysis using flow cytometry, similarity among all stem cell marker expression was found, excluding CD29 and CD105. Regarding stem cell differentiation capability, USCs were observed to have better adipogenic and endothelial abilities as well as vascularization potential compared to BMSCs and PDB-MSCs. As for osteogenic and chondrogenic induction, BMSCs were superior to all three stem cell types. Future therapeutic indications and clinical applications of BMSCs, PDB-MSCs, and USCs should be based on their characteristics, such as growth kinetics and differentiation capabilities.


Author(s):  
Javed M ◽  
◽  
Khan A ◽  
Mukheed M ◽  
◽  
...  

Stem cells ae immature cells that have ability to differentiate into all specific and mature cells in body. The two main characteristics of stem cells are selfrenewable and ability to differentiate into all mature, functional and adult cells types. There are the two major classes a) pluripotent stem cells which have potential to differentiate in all adult cell and b) multipotent stem cells which have capacity to differentiate into many adult cells but not in all cell types. Due to the self-renewable ability stem cells are use in therapeutics, tissue regeneration, disease modeling and regenerative medicines and to treat cardiovascular diseases, neural disorders such as Parkinson’s disease and most importantly to treat carcinomas. The human induced pluripotent stem cells provide a great platform to study and treatment of human diseases because these are able to differentiate into many functional and specialized adult cells of body. The genome editing tools such as CRISPR Cas9 system and TALENs are used to generate multiple DNA variants in hPSCs by inducing site specific mutations, frame shift mutation and deletion. In present days CRISPR Cas9 is more efficient and frequent method for genome editing which is derived from bacterial cell.


2020 ◽  
Vol 21 (21) ◽  
pp. 8231
Author(s):  
Verónica Sobrino ◽  
Aida Platero-Luengo ◽  
Valentina Annese ◽  
Elena Navarro-Guerrero ◽  
Patricia González-Rodríguez ◽  
...  

The carotid body (CB), a neural-crest-derived organ and the main arterial chemoreceptor in mammals, is composed of clusters of cells called glomeruli. Each glomerulus contains neuron-like, O2-sensing glomus cells, which are innervated by sensory fibers of the petrosal ganglion and are located in close contact with a dense network of fenestrated capillaries. In response to hypoxia, glomus cells release transmitters to activate afferent fibers impinging on the respiratory and autonomic centers to induce hyperventilation and sympathetic activation. Glomus cells are embraced by interdigitating processes of sustentacular, glia-like, type II cells. The CB has an extraordinary structural plasticity, unusual for a neural tissue, as it can grow several folds its size in subjects exposed to sustained hypoxia (as for example in high altitude dwellers or in patients with cardiopulmonary diseases). CB growth in hypoxia is mainly due to the generation of new glomeruli and blood vessels. In recent years it has been shown that the adult CB contains a collection of quiescent multipotent stem cells, as well as immature progenitors committed to the neurogenic or the angiogenic lineages. Herein, we review the main properties of the different cell types in the CB germinal niche. We also summarize experimental data suggesting that O2-sensitive glomus cells are the master regulators of CB plasticity. Upon exposure to hypoxia, neurotransmitters and neuromodulators released by glomus cells act as paracrine signals that induce proliferation and differentiation of multipotent stem cells and progenitors, thus causing CB hypertrophy and an increased sensory output. Pharmacological modulation of glomus cell activity might constitute a useful clinical tool to fight pathologies associated with exaggerated sympathetic outflow due to CB overactivation.


2019 ◽  
Vol 9 (7) ◽  
pp. 904-913
Author(s):  
Bing Yan ◽  
Ruining Liang ◽  
Meng Ji ◽  
Qi-Qige Wuyun ◽  
Weijun Guan ◽  
...  

Of all the significant researches that have taken place in isolation, culture and characterization of mesenchymal stem cells (MSCs), the field of kidney-derived mesenchymal stem cells (KMSCs) in Tibetan mastiff is still a blank. Therefore, the purpose of this study is to isolate, culture and characterize the Tibetan mastiff KMSCs. The KMSCs were successfully isolated from one-day year old Tibetan mastiff kidney, cultured for 16 passages and distinguished by two methods: immunofluorescence staining and RT-PCR. The Tibetan mastiff KMSCs expressed specific surface marker genes (VIM, CD44, FN1, CD90, CD109, CD73, FN1) and kidney marker gene PAX2. The proliferation ability of Tibetan mastiff KMSCs was measured through cell count and clonality. Furthermore, cells differentiated into different cell types (hepatocellular cells, osteogenic cells, adipogenic cells and chondrogenic cells) under special induced medium, and the marker genes of induced cells were identified with Immunofluorescence staining and RT-PCR. All of these results indicated that the Tibetan mastiff KMSCs were obtained successfully, which possessed certain characteristics of multipotent stem cells. Therefore, MSCs in Tibetan mastiff kidney hold potential for clinical applications for regenerative therapy and their further studies are waiting to be required to investigate their functions.


2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Minkoo Seo ◽  
Jin-Chul Kim ◽  
Hyung-Ki Kim ◽  
Eun wook Choi ◽  
Suyeong Jeong ◽  
...  

Multipotent stem cells have the capacity to generate terminally differentiated cell types of each lineage; thus, they have great therapeutic potential for a wide variety of diseases. The most widely available stem cells are derived from human tissues, and their use for therapeutic application is limited by their high cost and low productivity. Herein, we report that conditioned media of mesenchymal stem cells (MSCs) isolated from deer antlers enhanced tissue regeneration through paracrine action via a combination of secreted growth factors and cytokines. Notably, DaMSC-conditioned media (DaMSC-CM) enhanced hair regeneration by activating the Wnt signaling pathway. In addition, DaMSC-CM had regenerative potential in damaged skin tissue through induction of skin regeneration-related genes. Remarkably, we identified round vesicles derived from DaMSC-CM, with an average diameter of ~120 nm that were associated with hair follicle formation, suggesting that secretory vesicles may act as paracrine mediators for modulation of local cellular responses. In addition, these secretory vesicles could regulate the expression of Wnt-3a, Wnt-10b, and lymphoid enhancer-binding factor-1 (LEF-1), which are related to tissue renewal. Thus, our findings demonstrate that the use of DaMSC-CM as a unique natural model for rapid and complete tissue regeneration has possible application for therapeutic development.


Cells ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 3189
Author(s):  
Atefeh Zarepour ◽  
Sara Hooshmand ◽  
Aylin Gökmen ◽  
Ali Zarrabi ◽  
Ebrahim Mostafavi

Spinal cord injury (SCI) has a major impact on affected patients due to its pathological consequences and absence of capacity for self-repair. Currently available therapies are unable to restore lost neural functions. Thus, there is a pressing need to develop novel treatments that will promote functional repair after SCI. Several experimental approaches have been explored to tackle SCI, including the combination of stem cells and 3D bioprinting. Implanted multipotent stem cells with self-renewing capacity and the ability to differentiate to a diversity of cell types are promising candidates for replacing dead cells in injured sites and restoring disrupted neural circuits. However, implanted stem cells need protection from the inflammatory agents in the injured area and support to guide them to appropriate differentiation. Not only are 3D bioprinted scaffolds able to protect stem cells, but they can also promote their differentiation and functional integration at the site of injury. In this review, we showcase some recent advances in the use of stem cells for the treatment of SCI, different types of 3D bioprinting methods, and the combined application of stem cells and 3D bioprinting technique for effective repair of SCI.


Author(s):  
Anna A. Valyaeva ◽  
Anastasia A. Zharikova ◽  
Artem S. Kasianov ◽  
Yegor S. Vassetzky ◽  
Eugene V. Sheval

AbstractSARS-CoV-2 can infiltrate the lower respiratory tract, resulting in severe respiratory failure and a high death rate. Normally, the airway and alveolar epithelium can be rapidly reconstituted by multipotent stem cells after episodes of infection. Here, we analyzed published RNA-seq datasets and demonstrated that cells of four different lung epithelial stem cell types express SARS-CoV-2 entry factors, including Ace2. Thus, stem cells can be potentially infected by SARS-CoV-2, which may lead to defects in regeneration capacity partially accounting for the severity of SARS-CoV-2 infection and its consequences.


2021 ◽  
Vol 12 (4) ◽  
pp. 1216-1223
Author(s):  
Muhammad Javed Iqbal ◽  
Muhammad Mukheed ◽  
Alisha Khan ◽  
Saba Irfan ◽  
Marriyam Talat ◽  
...  

Stem cells are immature cells that have ability to differentiate into all specific and mature cells in body. The two main characteristics of stem cells are self-renewable and ability to differentiate into all mature, functional and adult cells types. There are the two major classes a) pluripotent stem cells which have potential to differentiate in all adult cell and b) multipotent stem cells which have capacity to differentiate into many adult cells but not in all cell types.


2014 ◽  
Vol 34 (2) ◽  
Author(s):  
Tingting Sun ◽  
Chao Yu ◽  
Yuhua Gao ◽  
Chenqiong Zhao ◽  
Jinlian Hua ◽  
...  

The DMSCs (dermal mesenchymal stem cells) are multipotent stem cells, which can differentiate in vitro into many cell types. Much work has been done on DMSCs from humans, mice, rabbits and other mammals, but the related literature has not been published about these cells in cattle. In this study, we isolated and established the DMSC lines from cattle, thereby initiating further research on these cells, such as growth kinetics, detection of special surface antigen and RT–PCR (reverse transcription–PCR) assays to identify the biological characterization of the cell line. Furthermore, the DMSCs are induced to differentiate into adipocytes, osteoblasts and neural cells in vitro. Our results suggest that DMSCs isolated from cattle possess similar biological characteristics with those from other species. Their multi-lineage differentiation capabilities herald a probable application model in tissue engineering and induced pluripotent stem cells.


Author(s):  
Mukheed M ◽  
◽  
Kha A ◽  

Stem cells are immature cells that have ability to differentiate into all specific and mature cells in body. The two main characteristics of stem cells are selfrenewable and ability to differentiate into all mature, functional and adult cells types. There are the two major classes a) pluripotent stem cells which have potential to differentiate in all adult cell and b) multipotent stem cells which have capacity to differentiate into many adult cells but not in all cell types. Due to the self-renewable ability stem cells are used in therapeutics, tissue regeneration, disease modeling, regenerative medicines and to treat cardiovascular diseases, neural disorders such as Parkinson’s disease and most importantly to treat carcinomas. The human induced pluripotent stem cells provide a great platform to study and treatment of human diseases because these are able to differentiate into many functional and specialized adult cells of body. The genome editing tools such as CRISPR Cas9 system and TALENs are used to generate multiple DNA variants in hPSCs by inducing site specific mutations, frame shift mutation and deletion. In present days CRISPR Cas9 is more efficient and frequent method for genome editing which is derived from bacterial cell.


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