Stem Cell Therapy for Articular Cartilage Repair: Review of the Entity of Cell Populations Used and the Result of the Clinical Application of Each Entity
Yong-Beom Park, 医学博士, 博士, Chul-Won Ha, 医学博士, PhD‖, Ji Heon Rhim,..
背景:
Following successful preclinical studies, 干细胞疗法 is emerging as a candidate for the treatment of articular cartilage lesions. Because 干细胞疗法 for cartilage repair in humans is at an early phase, confusion and errors are found in the literature regarding use of the term 干细胞疗法 in this field.
Purpose:
To provide an overview of the outcomes of cartilage repair, elucidating the various cell populations used, and thus reduce confusion with regard to using the term 干细胞疗法.
Study Design:
Systematic review.
Methods:
The authors systematically reviewed any studies on clinical application of mesenchymal stem cells (间充质干细胞) in human subjects. A comprehensive search was performed in MEDLINE, EMBASE, the Cochrane Library, CINAHL, Web of Science, and Scopus for human studies that evaluated articular cartilage repair with cell populations containing MSCs. These studies were classified as using bone marrow–derived MSCs, adipose tissue–derived MSCs, peripheral blood–derived MSCs, synovium-derived MSCs, and umbilical cord blood–derived MSCs according to the entity of cell population used.
结果:
Forty-six clinical studies were identified to focus on cartilage repair with MSCs: 20 studies with bone marrow–derived MSCs, 21 studies with adipose tissue–derived MSCs, 3 studies with peripheral blood–derived MSCs, 1 study with synovium-derived MSCs, 和 1 study with umbilical cord blood–derived MSCs. All clinical studies reported that cartilage treated with MSCs showed favorable clinical outcomes in terms of clinical scores or cartilage repair evaluated by MRI. 然而, most studies were limited to case reports and case series. Among these 46 clinical studies, 18 studies erroneously referred to adipose tissue–derived stromal vascular fractions as “adipose-derived MSCs,” 2 studies referred to peripheral blood–derived progenitor cells as “peripheral blood–derived MSCs,” and 1 study referred to bone marrow aspirate concentrate as “bone marrow–derived MSCs.”
Conclusion:
Limited evidence is available regarding clinical benefit of 干细胞疗法 for articular cartilage repair. Because the literature contains substantial errors in describing the therapeutic cells used, researchers need to be alert and observant of proper terms, especially regarding whether the cells used were stem cells or cell populations containing a small portion of stem cells, to prevent confusion in understanding the results of a given stem cell–based therapy.
关键词 软骨, repair, entity, mesenchymal stem cells, cell concentrate, stromal vascular fraction
