1
|
Blackman A, Rees AC, Bowers RR, Jones CM, Vaena SG, Clark MA, Carter S, Villamor ED, Evans D, Emanuel AJ, Fullbright G, Long DT, Spruill L, Romeo MJ, Helke KL, Delaney JR. MYC is sufficient to generate mid-life high-grade serous ovarian and uterine serous carcinomas in a p53-R270H mouse model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.24.576924. [PMID: 38352443 PMCID: PMC10862747 DOI: 10.1101/2024.01.24.576924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Genetically engineered mouse models (GEMM) have fundamentally changed how ovarian cancer etiology, early detection, and treatment is understood. However, previous GEMMs of high-grade serous ovarian cancer (HGSOC) have had to utilize genetics rarely or never found in human HGSOC to yield ovarian cancer within the lifespan of a mouse. MYC, an oncogene, is amongst the most amplified genes in HGSOC, but it has not previously been utilized to drive HGSOC GEMMs. We coupled Myc and dominant negative mutant p53-R270H with a fallopian tube epithelium-specific promoter Ovgp1 to generate a new GEMM of HGSOC. Female mice developed lethal cancer at an average of 15.1 months. Histopathological examination of mice revealed HGSOC characteristics including nuclear p53 and nuclear MYC in clusters of cells within the fallopian tube epithelium and ovarian surface epithelium. Unexpectedly, nuclear p53 and MYC clustered cell expression was also identified in the uterine luminal epithelium, possibly from intraepithelial metastasis from the fallopian tube epithelium (FTE). Extracted tumor cells exhibited strong loss of heterozygosity at the p53 locus, leaving the mutant allele. Copy number alterations in these cancer cells were prevalent, disrupting a large fraction of genes. Transcriptome profiles most closely matched human HGSOC and serous endometrial cancer. Taken together, these results demonstrate the Myc and Trp53-R270H transgene was able to recapitulate many phenotypic hallmarks of HGSOC through the utilization of strictly human-mimetic genetic hallmarks of HGSOC. This new mouse model enables further exploration of ovarian cancer pathogenesis, particularly in the 50% of HGSOC which lack homology directed repair mutations. Histological and transcriptomic findings are consistent with the hypothesis that uterine serous cancer may originate from the fallopian tube epithelium.
Collapse
|
2
|
Cramer DW. Incessant ovulation: a review of its importance in predicting cancer risk. Front Oncol 2023; 13:1240309. [PMID: 37869082 PMCID: PMC10588628 DOI: 10.3389/fonc.2023.1240309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/16/2023] [Indexed: 10/24/2023] Open
Abstract
Estrous cycles are recurring changes in therian mammals induced by estrogen, progesterone, and other hormones culminating in endometrial proliferation, ovulation, and implantation if fertilization occurred. In women, the estrous cycle is the menstrual cycle; but, unlike most mammals, the end of an infertile cycle is marked by endometrial sloughing and the start of another without an anestrous phase. Women stop cycling at menopause, while in most mammals, cycles continue until death. Epidemiologic studies identified menarche, menopause, births, lactation, and oral contraceptive (OC) use as key risk factors for ovarian, breast, and endometrial cancers. A composite variable was created to estimate the number of cycles not interrupted by events that stop ovulation. Captured by the phrase "incessant ovulation", repetitive cycles were first postulated to affect ovarian cancer risk and later extended to breast and endometrial cancers. These associations could be explained by cumulative effects of repetitive tissue changes within reproductive organs, immune consequences of repetitive ovulation through the glycoprotein mucin 1, and residual effects of past ovulations that enhance ovarian production of testosterone. The latter two pathways could affect the risk for cancers in other organs not considered "reproductive".
Collapse
Affiliation(s)
- Daniel W. Cramer
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| |
Collapse
|
3
|
Najdi N, Esmailzadeh A, Shokrpour M, Nikfar S, Razavi SZ, Sepidarkish M, Maroufizadeh S, Safiri S, Almasi-Hashiani A. A systematic review and meta-analysis on tubal ligation and breast cancer risk. Syst Rev 2022; 11:126. [PMID: 35718766 PMCID: PMC9208107 DOI: 10.1186/s13643-022-02000-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Based on previous studies, it has been hypothesized that tube sterilization may be associated with a lower risk of breast cancer. This study aims to investigate the relationship between tubal ligation and the risk of breast cancer through a systematic review and meta-analysis. METHODS In this systematic review and meta-analysis, PubMed/Medline, Web of Science, Scopus, and Google Scholar were searched for relevant non randomized studies published up to November 2020. Then, we screened the papers to include the eligible papers in the meta-analysis. Finally, we pooled the extracted results of individual studies to estimate the summary effect size. All analyses were done using Stata software version 13 (Stata Corp, College Station, TX). RESULTS Four hundred sixty-four papers were retrieved from PubMed/Medline (160), Scopus (165), and Web of Science (139), and 21 papers from Google Scholar and manual search of references in selected full texts. After the removal of duplicates and screening of the papers, 11 articles (6 cohort and 5 case-control study) were included in the final analysis. The results of cohort (RR = 0.99, 95% CI = 0.97-1.0, I2 = 21.1%) and case control studies (OR = 0.87, 95% CI = 0.62-1.12, I2 = 88.9%) revealed that tubal ligation was not significantly associated with breast cancer risk. CONCLUSION According to our findings, tubal ligation cannot be considered as a risk factor associated with breast cancer risk.
Collapse
Affiliation(s)
- Nazila Najdi
- Department of Obstetrics and Gynecology, Arak University of Medical Sciences, Arak, Iran
| | - Arezoo Esmailzadeh
- Department of Obstetrics and Gynecology, Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maryam Shokrpour
- Department of Obstetrics and Gynecology, Arak University of Medical Sciences, Arak, Iran
| | - Somayeh Nikfar
- Department of Obstetrics and Gynecology, Arak University of Medical Sciences, Arak, Iran
| | | | - Mahdi Sepidarkish
- Department of Biostatistics and Epidemiology, Babol University of Medical Sciences, Babol, Iran
| | - Saman Maroufizadeh
- Department of Biostatistics, School of Health, Guilan University of Medical Sciences, Rasht, Iran
| | - Saeid Safiri
- Research Center for Integrative Medicine in Aging, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Social Determinants of Health Research Center, Department of Community Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Almasi-Hashiani
- Department of Epidemiology, School of Health, Arak University of Medical Sciences, Golestan St., Arak, Iran. .,Traditional and Complementary Medicine Research Center, Arak University of Medical Sciences, Golestan St., Arak, Iran.
| |
Collapse
|
4
|
Youseflu S, Jahanian Sadatmahalleh S. Psycho-sexual influence of sterilization on women's quality of life: a path model. Health Qual Life Outcomes 2021; 19:89. [PMID: 33731117 PMCID: PMC7968239 DOI: 10.1186/s12955-021-01733-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 03/08/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Tubal ligation, as a permanent contraception method, have a negative and positive impact on women's life. This study aimed to test a conceptual model considering the interrelated role of menorrhagia, body image concern, self-esteem, sexual function, anxiety and depression on quality of life (QOL) of sterilized women. METHODS The current study was conducted as a cross-sectional study on 200 sterilized women. Data were collected using a socio-demographic checklist, Short Form Health Survey (SF-12), pictorial blood loss assessment chart, female sexual function index, hospital anxiety and depression scale, body image concern inventory, and Rosenberg Self-esteem Scale. Data were analyzed using Pearson correlation coefficient and path analysis. RESULTS Results show that anxiety, sexual function, self-esteem, and body image dissatisfaction have a direct effect on women's QOL. Higher level of anxiety, and body dissatisfaction directly reduce QOL. Sexual function, and menorrhagia, with an indirect effect through anxiety, reduces QOL. Higher level of anxiety with indirect effect thorough self-esteem can worsen QOL. Also, sexual function indirectly affects QOL through anxiety. CONCLUSION It looks that the proposed predictors of this model are greatly important. These findings give support for a hypothetical model in which betterment in SF, body image satisfaction, self-esteem, anxiety, and menorrhagia led to a good QOL of sterilized women. Hence, in designing care for sterilized women, these factors should be considered.
Collapse
Affiliation(s)
- Samaneh Youseflu
- Department of Midwifery, School of Nursing and Midwifery, Zanjan University of Medical Sciences, Zanjan, Iran
| | | |
Collapse
|
5
|
Yassa M, Pulatoğlu Ç. Patients' perceptions toward and the driving factors of decision-making for opportunistic bilateral salpingectomy at the time of cesarean section. Turk J Obstet Gynecol 2020; 17:115-122. [PMID: 32850186 PMCID: PMC7406902 DOI: 10.4274/tjod.galenos.2020.12129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 05/10/2020] [Indexed: 01/19/2023] Open
Abstract
Objective: Enough data can be found in the literature regarding the protective effect of tubal ligation on gynecological cancers. In addition, a large body of evidence revealed that prophylactic bilateral salpingectomy had no significant negative effect on the ovarian function, quality of life, sexuality, surgery duration, and cost-effectivity. This study was aimed at exploring the underlying factors that motivate women for either opportunistic bilateral salpingectomy (OBS) or tubal ligation, particularly focusing on their preferences, knowledge, and beliefs toward female sterilization, satisfaction from counseling, and body image following the salpingectomy. Materials and Methods: A total of 54 patients who had undergone surgical sterilization with either OBS or tubal ligation were included in this prospective cohort study. The acceptance rate of the OBS at the time of cesarean section among pregnant women seeking surgical sterilization was calculated. The underlying reasons for women’s acceptance or refusal for salpingectomy were assessed by a non-validated data collection tool that had 14 open-ended questions focusing on the women’s preferences, knowledge, beliefs toward female sterilization, satisfaction from counseling, and body image following the salpingectomy. Results: The acceptance rate of OBS at the time of cesarean section among pregnant women and electively among non-pregnant women were 93.5% (n=43/46) and 75% (6/8), respectively. The main driving factors influencing the decision of preferring OBS over tubal ligation were the risk-reducing effect for ovarian cancer and superior pregnancy prevention. Conclusion: The acceptance rate of OBS at the time of cesarean section was found to be very high, and it should therefore be offered at the time of cesarean section to women who desire permanent contraception.
Collapse
Affiliation(s)
- Murat Yassa
- Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital, Clinic of Obstetrics and Gynecology, İstanbul, Turkey
| | - Çiğdem Pulatoğlu
- İstinye University, Medical Park Gaziosmanpaşa Hospital, Clinic of Obstetrics and Gynecology, İstanbul, Turkey
| |
Collapse
|
6
|
Steenbeek MP, Bulten J, Snijders MPLM, Lombaers M, Hendriks J, van den Brand M, Kraayenbrink AA, Massuger LFAG, Sweegers S, de Hullu JA, Pijnenborg JMA, Küsters-Vandevelde HVN, Reijnen C. Fallopian tube abnormalities in uterine serous carcinoma. Gynecol Oncol 2020; 158:339-346. [PMID: 32409160 DOI: 10.1016/j.ygyno.2020.04.707] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/27/2020] [Indexed: 01/02/2023]
Abstract
OBJECTIVE Uterine serous carcinoma (USC) is presumed to arise from endometrial intra-epithelial carcinoma (EIC), whereas tubo-ovarian high-grade serous carcinomas have similar precursor lesions in the Fallopian tube, i.e. serous tubal intra-epithelial carcinoma (STIC). The presence of Fallopian tube abnormalities and their clonal relationship to the concurrent USC was investigated. METHODS In this multicenter study, all patients treated for USC between 1992 and 2017 were retrospectively identified. Histopathological diagnosis of USC, EIC and STIC was revised by an expert pathologist. Additionally, all Fallopian tube sections were immunohistochemically stained (p53 and Ki-67). Fallopian tube abnormalities were classified as either p53 signature, serous tubal intra-epithelial lesion (STIL) or STIC. The USCs and Fallopian tube abnormalities were analyzed by targeted next-generation sequencing. RESULTS In 168 included patients, Fallopian tube abnormalities were found in 27.4% (46/168): p53-signatures in 17.9% (30/168), STILs in 3.0% (5/168) and STICs in 6.5% (11/168). In subgroup analysis, STICs were found in 9.5% (11/115) of patients with at least one section of the fimbriated end embedded. Next-generation sequencing showed identical TP53-mutations in the STIC and corresponding USC. CONCLUSIONS In conclusion, the presence of Fallopian tube abnormalities was shown in a high percentage of patients with USC, representing either true precursor lesions or metastasized disease.
Collapse
Affiliation(s)
- Miranda P Steenbeek
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Johan Bulten
- Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Marc P L M Snijders
- Department of Obstetrics and Gynecology, Canisius-Wilhelmina Hospital, Nijmegen, the Netherlands
| | - Marike Lombaers
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jeanine Hendriks
- Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Arjan A Kraayenbrink
- Department of Obstetrics and Gynecology, Rijnstate Hospital, Arnhem, the Netherlands
| | - Leon F A G Massuger
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Sanne Sweegers
- Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Joanne A de Hullu
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Johanna M A Pijnenborg
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Casper Reijnen
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Obstetrics and Gynecology, Canisius-Wilhelmina Hospital, Nijmegen, the Netherlands
| |
Collapse
|