Progesterone Receptor
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eLife ◽  
2022 ◽  
Vol 11 ◽  
Author(s):  
Alejandro La Greca ◽  
Nicolás Bellora ◽  
François Le Dily ◽  
Rodrigo Jara ◽  
Ana Silvina Nacht ◽  
...  

Estrogen (E2) and Progesterone (Pg), via their specific receptors (ERalpha and PR), are major determinants in the development and progression of endometrial carcinomas, However, their precise mechanism of action and the role of other transcription factors involved are not entirely clear. Using Ishikawa endometrial cancer cells, we report that E2 treatment exposes a set of progestin-dependent PR binding sites which include both E2 and progestin target genes. ChIP-seq results from hormone-treated cells revealed a non-random distribution of PAX2 binding in the vicinity of these estrogen-promoted PR sites. Altered expression of hormone regulated genes in PAX2 knockdown cells suggests a role for PAX2 in fine-tuning ERalpha and PR interplay in transcriptional regulation. Analysis of long-range interactions by Hi-C coupled with ATAC-seq data showed that these regions, that we call 'progestin control regions' (PgCRs), exhibited an open chromatin state even before hormone exposure and were non-randomly associated with regulated genes. Nearly 20% of genes potentially influenced by PgCRs were found to be altered during progression of endometrial cancer. Our findings suggest that endometrial response to progestins in differentiated endometrial tumor cells results in part from binding of PR together with PAX2 to accessible chromatin regions. What maintains these regions open remains to be studied.


Author(s):  
Carolyn L. Westhoff ◽  
Hua Guo ◽  
Zhong Wang ◽  
Hanina Hibshoosh ◽  
Margaret Polaneczky ◽  
...  

2022 ◽  
Author(s):  
Lili Chen ◽  
Meng Huang ◽  
Minyan Chen ◽  
Yuxiang Lin ◽  
Jing Li ◽  
...  

Abstract Background: Except for BRCA1/2, there is no data on the relationship between genetic counseling for the range of mutations and early-onset breast cancer populations. We looked for a link between inherited genes and the molecular subtype of early-onset breast cancer.Methods: We genotyped 1214 individuals with early-onset sporadic breast cancer (age≤40 years) who were BRCA1/2-negative in 3 genes: TP53, PALB2, and RECQL. We focus on the immunohistochemistry characteristics that are unique to each patient. Results: The mutation rates of TP53, PALB2, and RECQL in 1214 BRCA-negative young individuals were 4/1214(0.33%), 8/1214(0.66%), 2/1214(0.16%), respectively. The fact that the TP53 mutation rate was 3.49% among estrogen receptor-and/or progesterone receptor-positive, human epidermal growth factor receptor 2 (HER-2) amplification patients under the age of 35 (P<0.001) was particularly noteworthy. Conclusion: According to the findings, TP53 genetic testing should focus on women under 35 with HR-positive and HER2-positve IDC patients.


2022 ◽  
Author(s):  
Salim Arslan ◽  
Xiusi Li ◽  
Julian Schmidt ◽  
Julius Hense ◽  
Andre Geraldes ◽  
...  

We present a public validation of PANProfiler (ER, PR, HER2), an in-vitro medical device (IVD) that predicts the qualitative status of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) by analysing the hematoxylin and eosin (H&E)-stained tissue scan. In public validation on 648 (ER), 648 (PR) and 560 (HER2) unseen cases with known biomarker status, the device achieves an accuracy of 87% (ER), 83% (PR) and 87% (HER2). The validation offers early evidence of the ability to predict clinically relevant breast biomarkers from an H&E slide in a relevant clinical setting.


Folia Medica ◽  
2021 ◽  
Vol 63 (6) ◽  
pp. 985-989
Author(s):  
Lokot Donna Lubis ◽  
Sarah Dina ◽  
Derissa Khairina Khaidirman

Primary vulvar adenocarcinoma is a very rare neoplasm, accounting for only 1% of all gynecologic malignancies. Most of the glandular carcinomas originated from the Bartholin&rsquo;s gland. Because of the rare incidence, the pathogenesis and radiotherapy response are not fully understood. A 47-year-old female from our hospital was diagnosed with primary Bartholin adenocarcinoma and received radiotherapy as definitive treatment. We evaluated the presence of high-risk and low-risk human papillomavirus (HPV) DNA to associate the role of HPV infection, and evaluated its molecular features by the expression of vimentin, p16, estrogen receptor, progesterone receptor, S-100, and Ki 67.


2021 ◽  
pp. 106689692110704
Author(s):  
Aishwarya Sharma ◽  
Munita Bal ◽  
Santosh Menon

Endometrial stromal sarcoma (ESS) is a rare uterine neoplasm infrequently arising in extra-genital sites. Herein, we report an extremely rare case of primary extra-genital ESS of transverse mesocolon occurring in a 51-year-old female presenting with gradually increasing abdominal mass. The clinical diagnosis considered was a gastrointestinal stromal tumor. Intra-operatively, the mass was confined exclusively to the transverse mesocolon. Microscopy revealed a cellular tumor composed of oval to elongate neoplastic cells with hyperchromatic nuclei, inconspicuous nucleoli and were immunoreactive for CD10, progesterone receptor (PR), estrogen receptor (ER), and PAX8; negative for KIT, CD34, SMA, S100, synaptophysin, chromogranin, WT-1, and calretinin. A distinct arborizing network of arterioles along with foci of endometriosis was also seen. We present this case for its extreme rarity and the challenges entailed in its diagnosis.


2022 ◽  
Vol 226 (1) ◽  
pp. S507
Author(s):  
Emily K. Redman ◽  
Jessica Thorpe ◽  
David N. Hackney ◽  
Raymond W. Redline ◽  
Rachel A. Wilson ◽  
...  

Author(s):  
María Florencia Abascal ◽  
Andrés Elía ◽  
Michelle Alvarez ◽  
Gabriela Pataccini ◽  
Gonzalo Sequeira ◽  
...  

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