Short Communication - (2022) Volume 11, Issue 6
Received: 25-Oct-2022, Manuscript No. SCPM-22-19223; Editor assigned: 28-Oct-2022, Pre QC No. SCPM-22-19223 (PQ); Reviewed: 11-Nov-2022, QC No. SCPM-22-19223; Revised: 18-Nov-2022, Manuscript No. SCPM-22-19223 (R); Published: 25-Nov-2022, DOI: 10.35248/2168-9431.22.11.039
Stem cells are the basis of every organ and tissue in the body. There are different types of stem cells that originate from different parts of the body or are produced at different times in our lives. These include embryonic stem cells, which are present only in the early stages of development, and various types of tissue-specific (or adult) stem cells, which are created during fetal development and remain in the body throughout life. All blood cells (white blood cells, red blood cells, platelets) in the body start as young (immature) cells called hematopoietic stem cells. These are very young cells that are not fully developed. Although initially, these stem cells can mature into any type of blood cell, depending on what the body needs as each stem cell develops. As blood cells mature, they leave the bone marrow and enter the bloodstream. A small fraction of immature stem cells also enters the bloodstream. These are called peripheral blood stem cells.
All types of blood cells in the bone marrow begin as stem cells. Stem cells are immature cells that can make other blood cells that mature and function as needed. Cells in the body have a specific purpose, but stem cells are cells that have not yet fulfilled a specific role and can become almost any cell a body needs. Stem cells are undifferentiated cells that can turn into specific cells when the body needs them. Scientists and doctors are interested in stem cells because they help explain how some bodily functions work and how they go wrong. Stem cells are primarily obtained from the two sources. The human body contains stem cells throughout life. The body can use these stem cells whenever it needs them. Adult stem cells, also known as tissue-specific stem cells or somatic stem cells are present throughout the body from embryonic development. Cells are non-specific but more specialized than embryonic stem cells. They remain in this state until the body needs them for a specific purpose, such as skin or muscle cells [1].
Human embryonic stem cells form various differentiated tissues in vitro and form teratomas when transplanted into immunosuppressed mice. Although it is unknown whether the cells are able to colonize all tissues of the human embryo, their other properties suggest that they are indeed pluripotent cells, thus making cell therapy (defective). It is considered a source of differentiated cells for the replacement of one cell type in some cells [2]. Embryonic stem cells can be used to produce large numbers of cells for cell transplantation, such as dopaminesecreting neurons to treat Parkinson's disease or insulin-secreting pancreatic beta cells to treat diabetes. Cells for this purpose were previously only available from very limited sources, such as pancreatic beta cells obtained from the cadavers of human organ donors.
Some tissues in the adult body, such as the epidermis of the skin, the lining of the small intestine, and the bone marrow, undergo continuous cell turnover. They contain stem cells that exist indefinitely and a much larger number of 'passagepromoting cells' that develop from stem cells and divide a finite number of times before differentiating. Stem cells reside in niches formed by other cells that secrete substances that maintain stem cell survival [3]. Some types of tissue, such as B. Liver tissue, show minimal cell division or undergo cell division only when damaged. In such tissues, dedicated stem cell populations are unlikely to exist and individual cells can participate in tissue regeneration when needed.
Adult stem cells are also more likely to contain environmental hazards, such as toxins, and abnormalities due to errors acquired during cell replication. But researchers have found that adult stem cells are more adaptable than originally thought: some cancers originate in the bone marrow, while others metastasize there. Cancers attack the bone marrow, overproducing some cells and crowding out others, or producing cells that are unhealthy and do not do what they are supposed to do. Stop these cancers from growing. Bone marrow cells need to function properly and start making new healthy cells. Stem cell transplantation is used to replace bone marrow cells that have been destroyed by chemotherapy and/or radiation used to treat cancer.
Stem cell transplants can help some patients and even have the potential to be curative for some people, but the decision to get a transplant is not an easy one. Transplants have been used to treat thousands of people with otherwise deadly cancers [4]. Yet, there are potential risks and complications that can be lifethreatening. Many people die as a result of stem cell transplantation. Anticipated risks and benefits should be carefully considered before transplantation [5].
Because stem cells are present throughout the body, they appear to be easy to harvest for transplantation and regenerative medicine, but the quantity and age of stem cells are the main factors that determine where they are harvested. Volume is important because there is no definitive way to drive replication. Age also plays an important role, as stem cells age lose their ability to regenerate, lose their ability to differentiate into other cell types, and can become susceptible to latent viral contamination, disease infection, and exposure to toxins and mutation [6]. It also increases the chances of the body triggering an autoimmune reaction that attacks itself.
The term stem cell is sometimes associated with rare types of cells found only in very specific locations. Stem cells are ubiquitous in the body and can be found in various organs and tissues such as the brain, blood, bone marrow, muscle, skin, heart, and liver tissue. In these areas, they lie dormant until the lost or damaged tissue needs to be regenerated. They are able to do this because of their unique ability to become many different types of cells and replicate rapidly.
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Citation: Anthony D (2022) Clinical Application of Metabolic Human Bone Marrow Stromal Stem Cells. Single Cell Biol. 11:039.
Copyright: © 2022 Anthony D. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.