Authors:
Jones RK. Bulmer JN. Searle RF.
Institution
R.K. Jones, Department of Immunology, The Medical School, Newcastle
University, Newcastle-upon-Tyne NE2 4HH; United Kingdom.
Title:
Phenotypic and functional studies of leukocytes in human endometrium and endometriosis. (1998 2606)
Source:
Human Reproduction Update. Vol 4(5) (pp02-709), 1998.
Abstract:
The aetiology of endometriosis, a common and disabling disorder, is presently unknown, although immune dysfunction could allow ectopic endometrial fragments to survive outside the uterine cavity. These studies investigate the relationship between leukocyte populations, steroid hormone receptor expression, proliferative activity, bcl-2 expression and apoptosis in eutopic and ectopic endometrium from women with endometriosis or adenomyosis at different phases of the menstrual cycle. Significantly increased oestrogen receptor expression, bcl-2 expression and numbers of CD8+ leukocytes were found in ectopic compared with eutopic endometrium in endometriosis, and CD56+ endometrial granulated lymphocytes (eGLs) were significantly reduced in ectopic endometrium. Apoptotic cells were rarely found in control and subject endometria. In contrast with endometriosis, adenomyotic lesions showed identical steroid hormone receptor expression, proliferative activity, bcl-2 expression and leukocyte subpopulations to eutopic endometrium, indicating different aetiologies for these disorders. The unusual CD56+ CD16- eGLs present in large numbers in late secretory phase eutopic endometrium were highly purified ( 98%) by immunomagnetic separation. Except for a negligible cytotoxic activity of eGLs from early proliferative samples, cytotoxic activity of eGLs from non-pregnant during the menstrual cycle was with those in peripheral blood, predominantly CD56+ CD16+ natural killer cells. eGLs from non-pregnant endometrium and early pregnancy showed a variable proliferative response to 5 and 100 U/ml interleukin-2 over 48-h and 120-h time courses. eGLs are evidently functionally important in the eutopic endometrium. Their absence in endometriotic lesions together with increased CD+8 T-cell numbers and increased oestrogen receptor and bcl-2 expression may have significant effects on the development and progression of endometriosis.
Please click on the required question.
- Pelvic Pain. Is this a common problem?
- What are the common causes of pelvic pain in women?
- What are the more common gynaecological causes of pelvic pain?
- What are the more common non-gynaecological causes of pelvic pain?
- What are primary and secondary dysmenorrhoea - painful periods?
- What is retrograde menstruation?
- How can dysmenorrhoea - painful periods be treated?
- What are ovarian cysts?
- How do ovarian cysts cause pain?
- How are ovarian cysts diagnosed?
- How are ovarian cysts treated?
- I think I may be pregnant and I have some pelvic pain. What should I do?
- 13 What is pelvic inflammatory disease and how can it be treated?
- Mittelschmertz
- What are fibroids?
- I have fibroids. What difficulties might they cause for me?
- How are fibroids diagnosed?
- How could my fibroids be treated?
ENDOMETRIOSIS
- What is endometriosis?
- How prevalent is endometriosis?
- What causes endometriosis?
- How can my endometriosis be treated?
- How can my doctor determine the cause of my pelvic pain?
- What investigations might be recommended by my gynaecologist to investigate my pelvic pain?
- What is laparoscopy?
- What are pelvic adhesions?
- I have chronic pelvic pain. Could this be related to adhesions?
- What is uterine retroversion (retroverted uterus)
- Does a retroverted uterus (backward tilted uterus) cause symptoms?
- How is a retroverted uterus - backward tilted uterus - treated?
- What is pelvic congestion?
- What causes pain associated with sexual intercourse (dyspareunia)
- How can painful sexual intercourse (dyspareunia) be treated?
- What is a pelvic mass?
IRRITABLE BOWEL SYNDROME - IBS
- What is irritable bowel syndrome?
- How can we find out if I have irritable bowel syndrome?
- Is irritable bowel syndrome (IBS) a common condition?
- What causes IBS?
- What is the pain associated with IBS like?
- Can IBS be mistaken for gynaecological problems?
- How can my IBS be treated?
- What other treatments are available for IBS?
- What can be done to reduce the amount of bowel gas(flatus)
- What is constipation?
- What causes constipation?
- How can constipation be treated?
- How could we summarise the treatments that are available for my pelvic pain?
- Where can I obtain more information?
- Pelvic Pain Support Groups.
- Endometriosis Support Groups.
- IBS Support Groups.
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