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Enhanced CD56 expre...
Enhanced CD56 expression and increased numbers of CD56+bright cells in the peripheral blood of untreated endometriosis patients
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- Björk, Emma (författare)
- Umeå universitet,Obstetrik och gynekologi,Immunologi/immunkemi,Division of Obstetrics and Gynecology/Örnsköldsvik Hospital, Örnsköldsvik, Sweden
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- Israelsson, Pernilla (författare)
- Umeå universitet,Onkologi,Institutionen för diagnostik och intervention
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- Nagaeva, Olga, 1958- (författare)
- Umeå universitet,Klinisk immunologi
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- Mincheva-Nilsson, Lucia (författare)
- Umeå universitet,Klinisk immunologi
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- Ottander, Ulrika (författare)
- Umeå universitet,Obstetrik och gynekologi
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(creator_code:org_t)
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Problem: Endometriosis is characterized by ectopic implantation of endometrial-like tissue and impaired immuneresponses such as the cytotoxic function of NK cells. NK cells can be divided into two subpopulations where theCD56+bright cells produce more cytokines and have low natural cytotoxicity compared to CD56+dim cells. Themajority (>90%) of circulating NK cells are CD56+dim whereas very few (0-10 %) are CD56+bright.Method of Study: Using flow cytometry, NK cell subpopulations were analyzed in peripheral blood from 21individuals with endometriosis and 12 healthy controls. Furthermore, the NKG2D receptor expression on PBMCswas analyzed in untreated and treated endometriosis patients and controls.Results: We found an increased level of CD56+bright cells in 8 of 21 endometriosis patients. After surgery andhormonal treatment, the levels were normalized to that of controls. In a new cohort, the NKG2D receptorexpression on PBMCs was analyzed, with a lower expression in untreated patients compared to controls andpatients treated by surgery and hormones.Conclusions: Our findings of a dominant CD56+bright NK cell subpopulation in peripheral blood, anddownregulated levels of the NKG2D receptor on PBMCs, may explain the impaired cytotoxic immune functioncausing the persistence of ectopic endometrium in untreated endometriosis patients.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reproduktionsmedicin och gynekologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Obstetrics, Gynaecology and Reproductive Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Immunologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Immunology in the medical area (hsv//eng)
Nyckelord
- NK cells
- CD56+bright
- NKG2D
- Endometriosis
- Immune suppression.
- obstetrik och gynekologi
- Obstetrics and Gynaecology
- immunologi
- Immunology
Publikations- och innehållstyp
- vet (ämneskategori)
- ovr (ämneskategori)