子宫内膜异位症妇女月经期腹膜及子宫内膜生物学相关细胞因子和生长因子的基因表达增加

Objective: To examine differential messenger RNA(mRNA)-expression of relevant cytokines, metalloproteases, growth and adhesion factors in endometrium and peritoneum from women with endometriosis when compared with women without the disease duringmenstrual and luteal phases of the cycle. Design: Patients with endometriosis were compared with control patients. Setting: University hospital. Patient(s): A total of 35 patients(20 patients during the luteal phase and 15 patients during the menstrual phase)were selected for this study on the basis of cycle phase and presence or absence of endometriosis. Intervention( s): In this study, endometriosis was laparoscopically and histologically confirmed in 24 women with endometriosis of revised American Society for Reproductive Medicine(ASRM) stage I-II(n=12) and revised ASRM stage III-IV(n=12), and the presence of a normal pelvis was documented by laparoscopy in 11 control patients. The macroscopically normal peritoneum tissues were collected from lateral wall left or right, near the colon ascendens or descendens. Main Outcome Measure(s): The expression levels were determined as ratios between the target molecules and β-actin as housekeeping gene. Result(s): In women with endometriosis, peritoneal mRNA levels of matrix metalloproteinase(MMP)-3, transforming growth factor-β, interleukin(IL)-6, and intercellular adhesion molecule-1 and endometrial mRNA levels of MMP-3, tumor necrosis factor(TNF)-α, and IL-8 were significantly higher during the menstrual phase when compared with luteal phase. During the menstrual phase of the cycle, both endometrial expression of TNF-α, IL-8, and MMP-3 mRNA levels and peritoneal expression of transforming growth factor-β, IL-6, and intercellular adhesion molecule-1 mRNA levels were significantly higher in women with endometriosis when compared with controls. Immunohistochemical staining confirmed the presence of TNF-αin peritoneum and endometrium in both women with endometriosis and controls. Conclusion(s): Increased endometrial and peritoneal cytokine mRNA expression during menstruation may contribute to a pelvic inflammatory microenvironment favoring the development of endometriosis.

蛋白质芯片(Fremont,CA)技术为研究子宫内膜异位症发病机制及诊断提供了有用的方法:一项初步研究

Objective: To test the feasibility of ProteinChip (Ciphergen Biosystems, Inc., Fremont, CA) technology as a proteomic tool in discovering and identifying proteins that are differentially expressed in endometrium, endometriotic tissue, and normal peritoneum from women with and without endometriosis. Design: Differential analysis of protein expression in women with and without endometriosis. Setting: University hospital. Patient(s): A total of nine patients during their secretory phase (days 20- 22) were selected for this study on the basis of cycle phase and presence/or absence of endometriosis. Intervention(s): Twelve tissues used in the study included six endometrial biopsies from women with mild endometriosis (n = 3) and a normal pelvis (n = 3) as well as paired samples of peritoneal endometriotic lesions (n = 3) and macroscopically normal peritoneum biopsies (n = 3) from three women with endometriosis. Main Outcome Measure(s): Numerous expression differences were observed in the above comparisons, representing both up-regulation and down-regulation in protein and peptide expression levels. Result(s): Endometrial expression for a number of proteins and peptides in the range of 2.8- 12.3 kDa was 3- 24 times lower in women with endometriosis than in those without endometriosis. When compared with normal peritoneum, endometriotic lesions showed an increased expression for a set of proteins and peptides in the range of 3- 96 kDa, and especially an up-regulated cluster of proteins between 22 and 23 kDa, identified to be transgelin, a smooth muscle actin-binding protein. Conclusion(s): This preliminary study demonstrated that differential protein profiling by using ProteinChip array technology is feasible, reproducible, and may be developed into a powerful tool for endometriosis research.