BACKGROUND: Previous research has demonstrated that dermal tissue has mesenchymal stem cells, which have a possibility of autologous transplantation. If the mesenchymal stem cells derived from the skin differentiate into lymphocytes under a certain condition, the immune system disease can be solved generally.OBJECTIVE: To investigate the possibility of differentiation of human skin-derived mesenchymal stem cells into lymphocytes. METHODS: Surface marker expression was detected in the 14th passage human skin-derived mesenchymal stem cells using flow cytometry. Transdifferentiation medium of human skin-derived mesenchymal stem cells consisted of human lymphocyte supernatant and fresh human skin-derived mesenchymal stem cells based on the ratio of 7:3. Inverted microscope was employed to observe morphological changes, and flow cytometry was used to detect surface marker expression in the lymphocytes at 1-8 days after induction. Self-marker expression of human skin-derived mesenchymal stem cells was then detected at 3,6, and 9 days after induction.RESULTS AND CONCLUSION: Human skin-derived mesenchymal stem cells stably expressed self-specific marker CD73, Vimentin and so on, but did not express specific markers of hematopoietic system, I.e., CD34, CD45 and so on, lowly expressed HLA-I, but did not express HLA-DR at all. At 3 days after induction, the cell volume significantly increased, cell proliferation rate was significantly lower than before induction, and a lot of cystic-like particles with strong refraction were observed in or between cells. The CD45 lymphocyte expression was not significantly changed, but CD3, CD19, CD16, CD4, and CD8 expression rates of human skin-derived mesenchymal stem cells were linearly increased at 1-4 days after induction and stabilized at 5-8 days after induction. In addition, CD37, CD34, Vimentin, and HLA-DR expressions were not changed at 3, 6, and 9 days after induction, but HLA-I expression rate was gradually increased with the prolongation time of induction. This suggested that human skin-derived mesenchymal stem cells can differentiate into lymphocyte and potentially participate in repairing immune system injury.

Objective To explore the effect of motivational interview in the psychological counseling and management abilities of family caregivers of children with recurrent wheezing.Methods A total of 120 children with recurrent wheezing who were treated in Hangzhou Children's Hospital from May 2023 to May 2024 were selected.The family caregivers of children were randomly divided into control group and observation group,with 60 people in each group.The control group received conventional knowledge training and health education,while the observation group received motivational interviews based on control group.Compare the asthma control level,anxiety and depression levels of family caregivers of children,scores of various dimensions of the family caregivers of children management measurement scale,and satisfaction between two groups before and after intervention.Results After intervention,the frequency of recurrent wheezing in observation group was lower than that in control group,and the difference was statistically significant(P＜0.05).There was a statistically significant difference(P＜0.05)in family management measure scores between two groups before and after intervention.The satisfaction of family caregivers of children in observation group was significantly higher than that in control group,and the difference was statistically significant(P＜0.05).Conclusion Motivational interview intervention can effectively alleviate the wheezing frequency of children with recurrent wheezing,improve the response of family care,reduce anxiety and depression of family caregivers of children.

Humans ; Botany/history* ; History, 20th Century ; China