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Progesterone Receptor is a Haploinsufficient Tumor Suppressor Gene in Cervical Cancer
Molecular Cancer Research ( IF 4.1 ) Pub Date : 2020-11-02 , DOI: 10.1158/1541-7786.mcr-20-0704
Yuri Park 1 , Seunghan Baik 1 , Charles Ho 1 , Chin-Yo Lin 1 , Sang-Hyuk Chung 1
Affiliation  

Tumor-suppressor genes (TSG) are often deleted or transcriptionally suppressed in cancer. PGR codes for progesterone receptor (PR), a transcription factor whose function depends on its ligand. Although PR expression is often undetectable in cervical cancer, its relevance to the endocrine-related etiology of this prevalent gynecological disease remains unclear. In this study, we show that the deletion of one Pgr allele in cervical epithelium promoted spontaneous cervical cancer in human papilloma viral oncogene-expressing transgenic mice as efficiently as the ablation of both Pgr alleles. We also show that tumors arising in the transgenic mice with one or both Pgr alleles did not express PR or expressed at the reduced levels compared with the normal epithelium. PR status correlated with estrogen receptor α (ERα) status in the mouse model and the Cancer Genome Atlas (TCGA) dataset. TCGA data analyses revealed that PGR expression significantly decreased in cervical cancer and that the biallelic deletion of PGR was rare. Furthermore, low PGR expression was associated with poor prognosis in young patients with cervical cancer. These discoveries point to PGR as a haploinsufficient TSG in the uterine cervix. They also raise the possibility that the restoration of PGR expression may improve the survival rate. Implications: The decreased expression of PR may increase the risk of cervical cancer in human papillomavirus–infected women. Visual Overview: http://mcr.aacrjournals.org/content/molcanres/19/1/42/F1.large.jpg. Visual Overview

中文翻译:

孕酮受体是宫颈癌中单倍体不足的肿瘤抑制基因

肿瘤抑制基因 (TSG) 在癌症中经常被删除或转录抑制。PGR 编码孕酮受体 (PR),这是一种转录因子,其功能取决于其配体。虽然 PR 表达在宫颈癌中通常无法检测到,但其与这种流行妇科疾病的内分泌相关病因的相关性仍不清楚。在这项研究中,我们表明,在表达人乳头瘤病毒癌基因的转基因小鼠中,宫颈上皮中一个 Pgr 等位基因的缺失与两个 Pgr 等位基因的消融一样有效地促进了自发宫颈癌。我们还表明,与正常上皮相比,具有一个或两个 Pgr 等位基因的转基因小鼠中出现的肿瘤不表达 PR 或以降低的水平表达。PR 状态与小鼠模型和癌症基因组图谱 (TCGA) 数据集中的雌激素受体α (ERα) 状态相关。TCGA 数据分析显示,宫颈癌中 PGR 表达显着降低,并且 PGR 的双等位基因缺失很少见。此外,低 PGR 表达与年轻宫颈癌患者预后不良有关。这些发现表明 PGR 是子宫颈中单倍体不足的 TSG。他们还提出了恢复 PGR 表达可以提高存活率的可能性。启示:PR 表达降低可能会增加感染人乳头瘤病毒的女性患宫颈癌的风险。视觉概览:http://mcr.aacrjournals.org/content/molcanres/19/1/42/F1.large.jpg。视觉概览 TCGA 数据分析显示,宫颈癌中 PGR 表达显着降低,并且 PGR 的双等位基因缺失很少见。此外,低 PGR 表达与年轻宫颈癌患者预后不良有关。这些发现表明 PGR 是子宫颈中单倍体不足的 TSG。他们还提出了恢复 PGR 表达可以提高存活率的可能性。启示:PR 表达降低可能会增加感染人乳头瘤病毒的女性患宫颈癌的风险。视觉概览:http://mcr.aacrjournals.org/content/molcanres/19/1/42/F1.large.jpg。视觉概览 TCGA 数据分析显示,宫颈癌中 PGR 表达显着降低,并且 PGR 的双等位基因缺失很少见。此外,低 PGR 表达与年轻宫颈癌患者预后不良有关。这些发现表明 PGR 是子宫颈中单倍体不足的 TSG。他们还提出了恢复 PGR 表达可以提高存活率的可能性。启示:PR 表达降低可能会增加感染人乳头瘤病毒的女性患宫颈癌的风险。视觉概览:http://mcr.aacrjournals.org/content/molcanres/19/1/42/F1.large.jpg。视觉概览 这些发现表明 PGR 是子宫颈中单倍体不足的 TSG。他们还提出了恢复 PGR 表达可以提高存活率的可能性。启示:PR 表达降低可能会增加感染人乳头瘤病毒的女性患宫颈癌的风险。视觉概览:http://mcr.aacrjournals.org/content/molcanres/19/1/42/F1.large.jpg。视觉概览 这些发现表明 PGR 是子宫颈中单倍体不足的 TSG。他们还提出了恢复 PGR 表达可以提高存活率的可能性。启示:PR 表达降低可能会增加感染人乳头瘤病毒的女性患宫颈癌的风险。视觉概览:http://mcr.aacrjournals.org/content/molcanres/19/1/42/F1.large.jpg。视觉概览
更新日期:2020-11-02
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