1.Lycium barbarum polysaccharides alleviates cisplatin-induced granulosa cell injury by downregulating miR-23a.
Liuqing LIU ; Kun WANG ; Xueqing WANG ; Bingxin DU
Journal of Southern Medical University 2025;45(11):2340-2349
OBJECTIVES:
To evaluate the protective effect of Lycium barbarum polysaccharides (LBP) against cisplatin-induced ovarian granulosa cell injury and investigate its possible mechanisms.
METHODS:
Human granulosa-like tumor cell line (KGN) were treated with 2.5 µg/mL cisplatin for 24 h, followed by treatment with 100, 500, and 1000 mg/L LBP, and the changes in cell viability, apoptosis, level of anti-Müllerian hormone (AMH), and cell ultrastructure were detected with CCK-8 assay, flow cytometry, ELISA and transmission electron microscopy. The cellular expressions of Bax, caspase-3, Bcl-2, and the PI3K/AKT pathway proteins were analyzed using Western blotting, and the expression of miR-23a was detected with RT-qPCR. KGN cell models with lentivirus-mediated miR-23a overexpression or knockdown were used to verify the therapeutic mechanism of LBP.
RESULTS:
Cisplatin treatment significantly inhibited cell viability, induced apoptosis, decreased AMH level, caused ultrastructural abnormalities, increased Bax and caspase-3 expression, and lowered Bcl-2 expression in KGN cells. Cisplatin also suppressed the activation of the PI3K/AKT signaling pathway and upregulated miR-23a expression in the cells. LBP intervention obviously alleviated cisplatin-induced injuries in KGN cells, and in particular, LBP treatment at the medium dose for 24 h significantly improved KGN cell viability, reduced apoptosis, enhanced their endocrine function, and ameliorated ultrastructural abnormalities. Mechanistically, medium-dose LBP obviously activated the PI3K/AKT pathway by downregulating miR-23a in cisplatin-treated cells, subsequently inhibiting Bax and caspase-3 while upregulating Bcl-2. Overexpression of miR-23a weakened while knockdown of miR-23a significantly enhanced the protective effects of LBP.
CONCLUSIONS
LBP alleviates cisplatin-induced apoptosis in KGN cells by inhibiting miR-23a expression and activating the PI3K/AKT pathway, suggesting a potential therapeutic strategy for ovarian function preservation.
Humans
;
Cisplatin/adverse effects*
;
MicroRNAs/genetics*
;
Female
;
Granulosa Cells/cytology*
;
Apoptosis/drug effects*
;
Drugs, Chinese Herbal/pharmacology*
;
Down-Regulation
;
Signal Transduction/drug effects*
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Phosphatidylinositol 3-Kinases/metabolism*
;
Cell Line, Tumor
;
Cell Survival/drug effects*
2.Coincidental finding of Sertoli-Leydig Cell Tumor in a postmenopausal woman with mild hyperandrogenism, ovarian teratoma, and pelvic organ prolapse: A case report
Hermina Silonga-Arce ; Minnou O. Tapia
Philippine Journal of Reproductive Endocrinology and Infertility 2024;21(1):8-13
A Sertoli-Leydig cell tumor (SLCT) is an extremely rare type of sex cord stromal tumor of the
ovary, which mainly secretes testosterone, thus manifestations of hyperandrogenism commonly
appear. This paper shall discuss a case of a postmenopausal woman who presented with pelvic
organ prolapse, large left ovarian cyst and mild signs of hyperandrogenism. She underwent
total abdominal hysterectomy with bilateral salpingo-oophorectomy, which on microscopic
examination of the specimens, revealed a Mature cystic teratoma on the left ovary and an
incidental finding of a well-differentiated SLCT, on the grossly normal-looking ovary. This
histopathologic diagnosis of SLCT explained the patient’s hyperandrogenic characteristics.
Authors likewise discussed the proper management of SLCT, including immunostaining and
need for adjuvant chemotherapy.
Sertoli-Leydig Cell Tumor
3.Central precocious puberty should be taken seriously in children with Leydig cell tumors of the testis after surgical treatment: a tertiary center experience.
Pei LIU ; Zong-Han LI ; Hong-Cheng SONG ; Chun-Xiu GONG ; Wei-Ping ZHANG
Asian Journal of Andrology 2024;26(6):617-621
Central precocious puberty secondary to Leydig cell tumors is rare in children. We retrospectively analyzed the mid- to long-term follow-up data of patients with Leydig cell tumors. The clinical data of 12 consecutive patients who were treated at Beijing Children's Hospital, Capital Medical University (Beijing, China), between January 2016 and October 2023 were retrospectively reviewed. Clinical evaluations, including physical examination, hormone examination, serum tumor marker analysis, abdominal and scrotal ultrasound, chest X-ray, and bone age measurement, were conducted before surgery and at follow-up time points. Surgical approaches were selected according to the individual conditions. Patients with an abnormal hormonal status and suspected of having central precocious puberty were referred to endocrinologists to confirm the diagnosis. Subsequently, gonadotropin-releasing hormone analog therapy was proposed. The mean patient age was 81.3 (range: 40-140) months at the time of the operation. Ten patients had peripheral precocious puberty at admission. All patients had elevated preoperative testosterone levels, whereas tumor marker levels were normal. Testis-sparing surgery was performed in eleven patients, and radical orchiectomy was performed in one patient. The follow-up duration (mean ± standard deviation) was 36.2 ± 25.3 months. Five patients had central precocious puberty, with a mean duration of 3.4 (range: 1-6) months postoperatively. Three patients were receiving gonadotropin-releasing hormone analog therapy, and good suppression of puberty was observed. No risk factors were found for secondary central precocious puberty. There was a high prevalence of central precocious puberty secondary to Leydig cell tumors in our study. Gonadotropin-releasing hormone analog therapy has satisfactory treatment effects. Larger sample sizes and long-term follow-up are needed in future studies.
Humans
;
Male
;
Puberty, Precocious/etiology*
;
Testicular Neoplasms/surgery*
;
Child
;
Retrospective Studies
;
Leydig Cell Tumor/complications*
;
Child, Preschool
;
Orchiectomy
;
Testosterone/blood*
;
Tertiary Care Centers
5.MRI Findings of the Uterine Tumors Resembling Ovarian Sex Cord Tumors:Report of Two Cases.
De-Han QIN ; Bo-Tao WANG ; Zhi-Ye CHEN
Acta Academiae Medicinae Sinicae 2023;45(6):1015-1018
Uterine tumors resembling ovarian sex cord tumors are rarely reported with limited imaging findings.The current study reported two case of uterine tumors resembling ovarian sex cord tumors and described the detailed MRI findings,which would provide valuable imaging evidence for the diagnosis of such tumors.
Female
;
Humans
;
Uterine Neoplasms/diagnostic imaging*
;
Ovarian Neoplasms/pathology*
;
Sex Cord-Gonadal Stromal Tumors/pathology*
;
Magnetic Resonance Imaging
7.Two Cases of Uterine Tumors Resembling Ovarian Sex-cord Tumors: Rare Case of Uterine Tumor
Im Hyeon KIM ; Yun Ha HWANG ; Joong Gyu HA ; In Taek HWANG ; Seung Hyun KIM
The Ewha Medical Journal 2020;43(1):19-23
Uterine tumors resembling ovarian sex-cord tumors (UTROSCT) are very rare tumors that occur mainly in the uterine fundus of women in reproductive age. These tumors can be classified into group 1 and group 2 by histological results. In group 1, epithelial-like differentiation is partially observed in the tumors. In group 2, sex-cord elements are predominant in uterine mural mass. We experienced UTROSCT group 1 in a 29-year-old woman who complained of severe abdominal pain that started one week after delivery and UTROSCT group 2 case in a 49-year-old woman who complained of dysfunctional uterine bleeding. We report two different types of UTROSCT cases that we experienced.
Abdominal Pain
;
Adult
;
Female
;
Humans
;
Metrorrhagia
;
Middle Aged
;
Sex Cord-Gonadal Stromal Tumors
;
Uterine Diseases
;
Uterine Neoplasms
9.Diagnosis of an indistinct Leydig cell tumor by positron emission tomography-computed tomography
Jinkyoung KONG ; Yoo Mee PARK ; Young Sik CHOI ; SiHyun CHO ; Byung Seok LEE ; Joo Hyun PARK
Obstetrics & Gynecology Science 2019;62(3):194-198
A 51-year-old perimenopausal female patient presented with hirsutism and voice thickening which was started approximately one and a half years ago. Her initial hormone assay revealed elevated plasma testosterone, 5a-dihydrotestosterone, and dehydroepiandrosterone (DHEA) levels and therefore androgen-secreting tumor was first suspected. However, the lesion was inconspicuous on transvaginal sonography, abdominal-pelvic computed tomography (CT) scan, and pelvic magnetic resonance (MRI) imaging. Consequently, 18F-fluorodeoxyglucose (FDG) positron emission tomography-CT was performed, which localized the lesion as a focal FDG uptake within the right adnexa. Total laparoscopic hysterectomy with bilateral salpingo-oophorectomy was performed, and although visible gross mass lesions were not observed intraoperatively, pure Leydig cell tumor was pathologically confirmed within the right ovary. Plasma testosterone, 5a-dihydrotestosterone, and DHEA levels were normalized postoperatively. Clinical signs of virilization were also significantly resolved after 3-months of follow-up.
Dehydroepiandrosterone
;
Diagnosis
;
Electrons
;
Female
;
Follow-Up Studies
;
Hirsutism
;
Humans
;
Hysterectomy
;
Leydig Cell Tumor
;
Middle Aged
;
Ovary
;
Plasma
;
Sertoli-Leydig Cell Tumor
;
Testosterone
;
Virilism
;
Voice
10.Intraoperative consultation for ovarian tumors
Yeungnam University Journal of Medicine 2019;36(3):163-182
The primary function of intraoperative frozen consultation is to provide an as accurate and prompt diagnosis as possible during surgery and to guide the surgeon in further management. However, the evaluation of frozen section (FS) is sometimes difficult because of suboptimal tissue quality and frozen artifacts compared with routinely processed tissue section. The pathologist responsible for the FS diagnosis requires experience and good judgment. Ovarian tumors are a heterogeneous group of tumors including primary surface epithelial tumors, germ cell tumors and sex cord-stromal tumors, secondary tumors, and other groups of tumors of uncertain histogenesis or nonspecific stroma. Intraoperative FS is a very important and reliable tool that guides the surgical management of ovarian tumors. In this review, the diagnostic key points for the pathologist and the implication of the FS diagnosis on the operator’s decisions are discussed.
Artifacts
;
Diagnosis
;
Frozen Sections
;
Judgment
;
Neoplasms, Germ Cell and Embryonal
;
Sex Cord-Gonadal Stromal Tumors


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