Release date: 2017-05-12 An artificial organ that can cultivate "bone marrow" has recently come out, which will bring good news to patients with severe blood diseases and immune diseases. The bone marrow is a spongy structure in the bone cavity, and the stem cells in the bone marrow can make red blood cells in the blood. In the treatment of certain immune diseases, these stem cells need to be destroyed; in addition, some anemia can cause the bone marrow to not produce enough blood cells and blood coagulation factors. In both cases, a bone marrow transplant is required. Figure | Bone marrow is making red blood cells Traditional bone marrow transplantation involves transplanting bone marrow stem cells from healthy donors to patients. However, before this, the patient's own bone marrow stem cells must be completely eliminated - through radiation or drugs. This can cause serious side effects such as vomiting and weight loss. To solve this problem, a team led by Shyni Varghese of the University of California, San Diego developed a "artificial bone." Bone marrow stem cells from donors can grow in this artificial bone, eliminating the need to destroy the patient's bone marrow stem cells with drugs or radiation. This artificial bone has two parts: the outer bone structure and the inner bone marrow, all made of gel material. The outer layer of material incorporates calcium phosphate to help the patient's stem cells attach to the bones, while the inner layer of gel material is used to hold the donor's bone marrow stem cells. In the mouse experiment, after being implanted under the skin of the mouse, the artificial bone gradually grew into a bone and had hematopoietic function. After 6 months, there was no rejection reaction between the blood cells from the donor bone marrow stem cells and the blood cells from the patient's own bone marrow stem cells. Vargas said that after implanting artificial bones, the patient has a reserve hematopoietic organ. However, artificial bones only supplement the patient's hematopoietic function, and instead of replacing it, they cannot be used to treat leukemia because the bone marrow stem cells of leukemia people have become malignant rather than unable to hematopoietic. For leukemia patients, it is still only possible to remove the malignant bone marrow stem cells. ) Edward Gordon-Smith, an honorary professor of hematology at St. George's University in London, said the artificial bone is a worthy achievement. In addition, this artificial bone can also help with research on hematopoietic stem cells and hematopoietic disorders. Source: DeepTech Deep Technology (micro signal mit-tr) Hydrocolloid Dressing,Hydrocolloid Bandages,Thin Hydrocolloid Dressing,Hydrocolloid Gel Roosin Medical Co.,Ltd , https://www.roosinmedical.com