alexa Relationship between uterine natural killer cells and unexplained repeated miscarriage.
Genetics

Genetics

Single Cell Biology

Author(s): Farghali MM, ElKholy AL, Swidan KH, Abdelazim IA, Rashed AR,

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Abstract OBJECTIVE: To evaluate the relation between uterine killer (uK) cells and unexplained repeated miscarriage (RM). MATERIAL AND METHODS: Eighty women with unexplained repeated miscarriage and missed miscarriage of current pregnancy were studied. Fetal viability and gestational age of the current pregnancy were confirmed by ultrasound, followed by suction evacuation to collect abortion specimens and uterine wall curettage to collect decidua specimens. Abortion specimens were collected for long-term monolayer cell culture and subsequent chromosome analysis using conventional G-banding. Decidua specimens were subjected to immunohistochemical staining using monoclonal antibodies specific to CD56+ and CD16+ expressed by uK cells. RESULTS: CD56+ CD16+ uK cells were found in 85\% [68/80] of the studied decidua specimens of women with unexplained repeated miscarriage; 88.5\% [54/61] had normal abortion karyotyping and 73.7\% [14/19] had abnormal abortion karyotyping. Moreover, 73.75\% [59/80] of the studied women with a past history of early miscarriage had CD56+ CD16+ uK cells in their decidua specimens, and 66.25\% [53/80] of studied women with a past history of late miscarriage had CD56+ CD16+ uK cells in their decidua specimens; the association between early and late miscarriage and CD56+ CD16+ uK cells in decidua specimens was significant. CONCLUSION: CD56+CD16+ uK cells were predominant in the decidua specimens of the studied women with repeated miscarriage. A significant association was found between the presence of CD56+ CD16+ uK cells in the studied decidua specimens and unexplained repeated miscarriage.
This article was published in J Turk Ger Gynecol Assoc and referenced in Single Cell Biology

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