Journal Article

Uterine adenomyosis is an oligoclonal disorder associated with KRAS mutations

Inoue, Satoshi, Saito, Tsuyoshi, Osuga, Yutaka, Osuka, Satoko, Takeuchi, Kengo, Mano, Hiroyuki, Taguchi, Ayumi, Ueno, Toshihide, Tanaka, Yosuke, Sakata, Seiji, Yoshida, Emiko, Kojima, Shinya, Hirota, Yasushi, Tanaka, Tomoki, Muraoka, Ayako, Hashimoto, Taiki, Takeyama, Reina, Hayashi, Takuo, Oda, Katsutoshi, Kawazu, Masahito, Fukui, Yamato, Ikemura, Masako, Kiyono, Tohru, Terao, Yasuhisa

2019

Overview

Uterine adenomyosis is a benign disorder that often co-occurs with endometriosis and/or leiomyoma, and impairs quality of life. The genomic features of adenomyosis are unknown. Here we apply next-generation sequencing to adenomyosis (70 individuals and 192 multi-regional samples), as well as co-occurring leiomyoma and endometriosis, and find recurring KRAS mutations in 26/70 (37.1%) of adenomyosis cases. Multi-regional sequencing reveals oligoclonality in adenomyosis, with some mutations also detected in normal endometrium and/or co-occurring endometriosis. KRAS mutations are more frequent in cases of adenomyosis with co-occurring endometriosis, low progesterone receptor (PR) expression, or progestin (dienogest; DNG) pretreatment. DNG’s anti-proliferative effect is diminished via epigenetic silencing of PR in immortalized cells with mutant KRAS . Our genomic analyses suggest that adenomyotic lesions frequently contain KRAS mutations that may reduce DNG efficacy, and that adenomyosis and endometriosis may share molecular etiology, explaining their co-occurrence. These findings could lead to genetically guided therapy and/or relapse risk assessment after uterine-sparing surgery. Uterine adenomyosis often co-occurs with endometriosis or leiomyoma, but little is known about its molecular underpinnings. Here, the authors show that KRAS mutations are frequent in this disease, which might reduce sensitivity to progestin treatment via epigenetic silencing of the progesterone receptor.

• Publisher: Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
• Subject: 45 / 45/23 / 631/208/212 / 631/67/1517/1931 / 631/67/2329 / 692/420 / 692/699 / Adenomyosis - complications / Adenomyosis - genetics / Adenomyosis - therapy / Adult / Cell Proliferation - drug effects / Cell Proliferation - genetics / DNA Mutational Analysis / Endometriosis / Endometriosis - complications / Endometriosis - genetics / Endometriosis - therapy / Endometrium / Endometrium - pathology / Endometrium - surgery / Etiology / Female / Fibroids / Genomic analysis / High-Throughput Nucleotide Sequencing / Humanities and Social Sciences / Humans / Hysterectomy / K-Ras protein / Middle Aged / multidisciplinary / Mutation / Myometrium - pathology / Myometrium - surgery / Nandrolone - analogs & derivatives / Nandrolone - pharmacology / Nandrolone - therapeutic use / Next-generation sequencing / Pretreatment / Progesterone / Progestin / Proto-Oncogene Proteins p21(ras) - genetics / Quality of life / Receptors, Progesterone - genetics / Receptors, Progesterone - metabolism / Risk assessment / Science / Science (multidisciplinary) / Surgery / Treatment Outcome / Uterus / Young Adult