MMTV-neu mice deficient in STAT1 are susceptible to develop ovarian teratomas.

The International Journal of Developmental Biology
Lára HannesdóttirWolfgang Doppler

Abstract

Signal transducer and activator of transcription 1 (STAT1) serves in the protection of the organism against pathogens and other harmful insults. It is implicated in innate immune response, immunosurveillance, tumor-suppression, and the response to genotoxic as well as oxidative stress. We report here that 9 of 140 examined STAT1 deficient mouse mammary tumor virus-neu (MMTV-neu) mice developed differentiated ovarian teratomas, which histologically resemble benign dermatoid cysts. Conventional karyotyping revealed diploidy without structural rearrangements of the chromosomes. STAT1 proficient MMTV-neu mice with the same genetic background (FVB/N), and STAT1 deficient C57BL/6 mice failed to develop this type of tumor. This indicates that STAT1 deficiency promotes teratoma formation and this depends on MMTV-neu expression and/or the genetic background. Since ovarian teratomas are considered to develop as a consequence of alterations in the maturation of oocytes and follicular cells, we compared the ovaries from non-tumor bearing STAT1 deficient and proficient MMTV-neu mice. No detectable alterations in the number and proportion of the different follicular developmental stages were detected, implying the absence of non-redundant fu...Continue Reading

Citations

May 20, 2020·Therapeutic Advances in Medical Oncology·Jinguo ZhangGuoxiong Xu
Nov 22, 2020·Journal of Ovarian Research·Yao JiangXiaolong Yuan

❮ Previous
Next ❯

Related Concepts

Related Feeds

Apoptosis in Cancer

Apoptosis is an important mechanism in cancer. By evading apoptosis, tumors can continue to grow without regulation and metastasize systemically. Many therapies are evaluating the use of pro-apoptotic activation to eliminate cancer growth. Here is the latest research on apoptosis in cancer.

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis

Related Papers

Proceedings of the National Academy of Sciences of the United States of America
C R FisherE R Simpson
The Journal of Clinical Endocrinology and Metabolism
Robert F Casper, Mohamed F M Mitwally
Menopause : the Journal of the North American Menopause Society
Lu SunVolodymyr Dvornyk
© 2021 Meta ULC. All rights reserved