AI Article Synopsis

  • ISM2 is a protein mainly expressed in the placenta, with no prior studies linking it to preeclampsia or choriocarcinoma.
  • Researchers conducted a study on women with preeclampsia, gestational hypertension, and normal pregnancies, measuring ISM2 levels and using immunohistochemistry on tissue samples.
  • The study found that ISM2 levels were lower in preeclampsia patients compared to controls, suggesting a link to the disease's development, while higher levels in choriocarcinoma indicate a role in cancer-related angiogenesis.

Article Abstract

Introduction: Isthmin 2 (ISM2) is a protein which expression in humans is almost specific to the placenta. There is no previous report in the literature that investigated this protein in preeclampsia or choriocarcinoma.

Methods: We conducted a prospective, cross-sectional study that included women with preeclampsia, gestational hypertension and normotensive pregnancy. We measured serum concentrations of ISM2 protein and performed immunohistochemistry in placenta tissues. We also performed immunohistochemistry of ISM2 in samples from choriocarcinoma and compare with lung, prostate, colon, gastric and breast cancers.

Results: A total of 81 patients were included, 30 with preeclampsia, 21 with gestational hypertension and 30 controls. The ISM2 protein was found to be decreased in patients with preeclampsia compared to the control group (P = 0.036). These results were confirmed by immunohistochemistry. We also found that ISM2 protein was overexpressed in choriocarcinoma.

Discussion: Taken together, our results suggest an angiogenic function for ISM2. Its serum level decreased in our patients with preeclampsia could be reflecting that it is involved in the pathogenesis of the disease; on the other hand its high expression in choriocarcinoma, indicates that ISM2 may play an active role in the angiogenesis of this and other cancers.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567920PMC
http://dx.doi.org/10.1016/j.heliyon.2020.e05096DOI Listing

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