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IJCRR - 13(22), November, 2021

Pages: 12-16

Date of Publication: 20-Nov-2021


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Expression of Estrogen and Progesterone Receptors in Ovarian Neoplasms

Author: Faizah, Aziz Mir Rizwan, Sharma Uma

Category: Healthcare

Abstract:Introduction: Ovarian cancer is one of the most aggressive malignancies of the female reproductive system and is the seventh most common cause of cancer-related deaths in females constituting about 4.0% of all female malignancies. Among cancers of the female genital tract, the incidence of ovarian cancer rank below only carcinoma of the cervix and the endometrium. Aim of the Study: The study aims to analyze the expression of estrogen receptor (ER) and progesterone receptor (PR) immunohistochemical markers in ovarian neoplasms and correlate these with age, histological type and grade of the tumour. Material and Methods: A retro-prospective study was conducted in the Pathology department of our institution for a period of 1 year, from April 2019 to March 2020. 57 cases of ovarian tumours were studied. Haematoxylin & Eosin staining was done followed by immunohistochemical staining for ER and PR. Results: Most of the tumours were benign and serous tumours were the most common histopathological entity. Expression of ER was more in malignant tumours (76.92%) than borderline (66.66%) and benign tumours (53.65%). The expression of PR was more in benign (60.97%) than borderline (33.33%) and malignant (38.41 %) tumours. Conclusion: ER expression was more in malignant tumours and PR expression was a more prevalent feature of benign tumors. This may support the role of estrogen in oncogenesis and indicate a protective role of progesterone in the development of ovarian carcinomas.

Keywords: Estrogen, Neoplasm, Ovarian, Progesterone, Reproductive system, IHC

Full Text:

INTRODUCTION

Ovarian tumours can arise from surface epithelium, germ cells, sex cord and ovarian stroma and have a diverse spectrum of histological features according to the particular tumour entity.1,2  The World Health Organization (WHO) Classification for ovarian tumours is based on the tissue of origin: surface epithelial (65%), germ cell (15%), sex cord-stromal (10%), metastatic (5%) and miscellaneous.3 Surface epithelial tumours are further sub-classified by cell type (serous, mucinous, endometrioid, clear cell carcinoma and Brenner’s) and atypia (benign, borderline or malignant). Most malignant ovarian tumours are surface epithelial (90%).1,2 About 80% of ovarian tumours are benign, and these occur mostly in young women between 20 and 35 years whereas borderline tumours occur at a slightly older age.3,4  Risk factors in ovarian carcinogenesis are not well defined. Pregnancy and oral contraceptives reduce, whereas family history increases the risk.

Steroid hormones, primarily estrogen and progesterone have been implicated in ovarian carcinogenesis.5 Estrogen favours neoplastic transformation of ovarian surface epithelial cells, whereas progesterone offers protection against ovarian cancer development.

As a higher expression of estrogen receptor (ER) and progesterone receptor (PR) has been reported in ovarian neoplasm, it is hypothesized that expression patterns of ER and PR may be related to tumour behaviour, prognosis, or both. 6, 7

 Ovarian neoplasms are characterized by changes in the receptor status; they may be primarily receptor-negative or may have lost receptors during disease progression.

 Previous studies show estrogen receptors increased positivity in high-grade / malignant tumours and progesterone receptors more in low-grade tumours. In patients with carcinoma of the breast and endometrium, the relationship between tumour estrogen and progesterone receptor (PR) levels and the prognosis is well documented.8 The clinical significance of ER and PR expression in ovarian carcinomas has not been well established in the literature. There are more studies on surface epithelial tumours, as being commonest, than compared to other ovarian neoplasms.9 Clinical significance of ER and PR expression in ovarian carcinoma has not been well established.8

MATERIAL AND METHODS

The study is based on 57 cases of ovarian neoplasm, including benign, borderline and malignant tumours, received in the Department of Pathology of our institution. This is a prospective and retrospective study after clearance from the ethical committee.

Relevant clinical details were obtained from patients' records including age, marital status, parity and presenting complaints. All specimens were thoroughly examined for size, laterality, the surface extension of tumour, unilocular/multilocular, cystic/solid or both, microscopic subtypes and grade of the tumour.

Haematoxylin & Eosin staining was done on paraffin sections of ovarian specimens received in the department. Immunohistochemical staining for ER and PR was done as per the standard procedure.

STATISTICAL ANALYSIS

Statistical analysis was done with Microsoft Excel 2007 software and further analyzed in SPSS version 24. All the categorical variables were expressed in terms of number/ frequency and percentages. Bar and pie charts were used to describe the categorical variables. A p-value less than 0.05 was considered statistically significant.

RESULTS:

The overall mean age of the patients was 40.5 ± 15.4 years with the mean age in the malignant group being higher (51.27 ± 16.05 years) than in the rest. About two-thirds of the patients in this study were of the premenopausal category. Overall, the most common complaint was pain abdomen and abdominal distension. A family history of ovarian or other malignancies was seen more in the malignant group (Table 1).

On gross examination, most of the tumours were cystic comprising about 74% of the total. An overwhelming majority of these tumours were found to be benign. Only 4(7%) of the tumours were predominantly solid and all of these turned out to be malignant on histopathology. The rest of the tumours had a variegated appearance with both solid and cystic components (Chart 1).

Serous tumours were the most common histopathological entity comprising approx. 50% of the benign group as well as the overall tumours. The next common tumour was benign cystic teratoma or dermoid (24.6 %). All of these tumours were found to be benign on histopathology. Mucinous cystadenocarcinomas (15%) and immature teratomas (3.5%), two cases each, were noted in the malignant category.

In the current study, the expression of ER was more in malignant tumours (76.92%) than borderline (66.66%) and benign tumours (53.65%) (Table 3, Chart 2). This may support the role of estrogen in oncogenesis.

The expression of PR was more in benign (60.97%) than borderline (33.33%) and malignant (38.41 %) tumours (Table 3, Chart 2). This probably indicates the protective role of progesterone in the development of ovarian carcinomas.

DISCUSSION

Ovarian cancer is the seventh most common cancer worldwide (The age-standardized mortality rate being 4.0/100,000). In India too, female cancer cases, especially ovarian cancer figures are escalating. India shows dangerous data of having the 3rd highest number of cancer cases among women after China and USA. India has the 2nd highest incidence of ovarian cancer globally. 10 The present study was carried out on 57 cases of various ovarian neoplasms. Tumours were classified according to WHO classification. Age has a strong correlation to ovarian cancer risk and 80% of cases are diagnosed after 50 years of age. The age range in our study was 15 to 75 years (mean 40.5 ± 15.4 years) similar to some of the previous studies.11  It is observed that benign tumours occur in the younger age group while malignant ones mostly occur in the 5th and 6th decade. The peak incidence of benign ovarian tumours was in the age group of 20- 40 years. The youngest case in the present study was 15 years old girl, who had a dermoid cyst of the right ovary. In the Ganga Pilli et al. study, peak age was 3rd to 4th decade accounting for 55.7% of cases. The youngest case was 8-month old.12 Basu et al. reported mean age as 48.8±11.2 years.13 Another study in India by Mondal et al. reported median age of 48 years at diagnosis and a maximum incidence of 44.3% in the age group of 41-50 years.14

Pain abdomen was the most common presenting symptom. Nausea, vomiting and ascites were seen in malignant tumours. In a study conducted by Sarkar et al. too, pain abdomen was the most common chief complaint overall.15

Studies reported that most of the cases of epithelial ovarian cancer occur after menopause in Caucasians. A multicentre case-control study also showed that 73% of epithelial ovarian cancer occurred after menopause in the United States. 16 In our study we found that the prevalence of epithelial ovarian cancer was slightly higher in postmenopausal women (54%) than in premenopausal women (46%). This incidence is quite similar to one found in another study conducted in Chinese women.17

Family history of malignancy was elucidated from all the patients in our study and a positive family history of ovarian or other malignancies was seen more in the malignant group. Many studies have established higher ovarian cancer risk in women with a family history of ovarian cancer, breast cancer and cancers of other sites.18

On gross examination, the majority of the tumours were cystic in appearance comprising 40 cases (70.17 %). The next common category of tumours had a mixed appearance with both cystic and solid components contributing to 12 cases (21.05%). The rest of the cases were purely solid in appearance. A similar proportion of cases was seen in a study conducted by Sarkar et al.15

Out of 57 cases, 41 cases were benign (71.92%), 13 cases were malignant (22.80%) and 3 cases of borderline tumours (5.26%). Similar incidences of histopathological subtypes have been noted in many previous studies (Mondal et al., Sarkar et al. 14, 15)

In the present series surface, epithelial tumours were the commonest, comprising 40 cases of 57 ovarian neoplasms. Serous type of tumours contributed to the majority i.e. 29 (50.9%) of total tumours as well as the benign i.e. 21 (51.2%) and malignant i.e. 6 (46.1%) ones (Table 2).

High estrogen (E2) levels, one of the risk factors for ovarian cancer development are often observed in ovarian cancer patients which increases the mobility of ovarian cancer cells by the inhibition of cell to cell adhesion resulting in metastasis. ER and PR show the effects of estrogen and progesterone on proliferation and apoptosis of ovarian cancer cells and a review of the literature shows that ER or PR positivity may be linked with metastasis of ovarian cancer. Ovarian cancers commonly show early peritoneal metastases; the peritoneal cavity is also the most common site of ovarian cancer recurrence.19

Similar to other studies, the present study also showed higher expression of ER in malignant cases than the expression of PR. Among the histological subtypes, ER expression was seen mostly in the serous tumours. The solitary cases of endometroid, Brenners’s and granulosa cell tumours, respectively, also showed positive ER expression.

The PR expression was mostly a feature of benign tumours in our study with the dermoid cyst showing maximum PR positivity (78.57%) followed by the serous subgroup.

These results of steroid hormone immunohistochemical expression were consistent with the previous studies like Naik et al.20 and Verma N et al.21

CONCLUSION

In our current study with limited sample size, we found that the ER expression was more in malignant tumours and PR expression was a more prevalent feature of benign tumours. This may support the role of estrogen in oncogenesis and indicate a protective role of progesterone in the development of ovarian carcinomas. However, this needs more extensive research with a much greater number of cases for better inference and a greater appeal.Acknowledgement:

The authors wish to acknowledge the lab technicians of the Department of Pathology of the institution for their support.

Source of Funding: Nil

Conflict of Interest: The authors declare there is no conflict of interest among them.

Author’s Contribution:

Faizah - Concept, study design, data analysis and manuscript preparation.

Aziz M R - Manuscript preparation and statistical analysis.

Sweta and Sharma U - Collection of data, data analysis and manuscript drafting

References:

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3. Duska LR, Kohn EC. The new classifications of the ovarian, fallopian tube, and primary peritoneal cancer and their clinical implications. Ann Oncol. 2017; 28(suppl 8): viii8- viii12.

4. Sylvia MT, Kumar S, Dasari P. The expression of immunohistochemical markers estrogen receptor, progesterone receptor, Her-2-neu, p53 and Ki-67 in epithelial ovarian tumours and its correlation with clinicopathologic variables. Indian J Pathol Microbiol 2012; 55:33-7.

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7. Yager JD. Chapter 3: Endogenous Estrogens as Carcinogens Through Metabolic Activation. J Natl Cancer Inst Monographs 2000; 2000:67–73

8. Liehr JG. Is estradiol a genotoxic mutagenic carcinogen? Endocrine reviews. 2000 Feb 1;21(1):40-54.

9.  Atla B, Sarkar RN, Rasaputra M. Clinicopathological and IHC study (estrogen receptors, progesterone receptor, HER2/NEU) in malignant ovarian tumours. Int J Res Med Sci. 2016 Apr;4(4):1068-73.

10. Hussein MJ, Salai JS. Clinical and histopathological features of ovarian cancer in Rizgary Hospital/Erbil City from 2014 to 2017. Medical Journal of Babylon. 2019;16(2):112-8.

11. Maheshwari V, Tyagi SP, Saxena K, Tyagi N, Sharma R, Aziz M, et al. Surface epithelial tumours of the ovary. Indian J Pathol Microbiol 1994; 37:75-85.

12. Pilli GS, Suneeta KP, Dhaded AV, Yenni VV. Ovarian tumours: a study of 282 cases. J Indian Med Assoc. 2002;100(7):420-447.

13.  Basu P, De P, Mandal S, Ray K, Biswas J. Study of ‘patterns of care of ovarian cancer patients in a specialized cancer institute in Kolkata, Eastern India. Indian J Cancer. 2009; 46:28-33.

14. Mondal SK, Bandyopadhyay R, Nag DR, Roychowdhury S, Mondal PK et al. Histologic pattern, bilaterality and clinical evaluation of 957ovarian neoplasms: A 10-year study in a tertiary hospital of eastern India. J Can Res Ther. 2011; 7:4337.

15. Sarkar M, Jha T, Das TK, Sau V, Mitra S, Roy K. Spectrum of epithelial ovarian tumours with HER2/neu expression by the carcinomas among patients admitted in a tertiary care hospital in Eastern India. Int J Med Sci Public Health 2015; 4:1388-1392

16. Moorman PG, Alberg AJ, Bandera EV, Barnholtz-Sloan J, Bondy M, Cote ML et al. Reproductive factors and ovarian cancer risk in African-American women. Ann Epidemiol. 2016; 26:654–62.

17. Shen F, Chen S, Gao Y, Dai X, Chen Q. The prevalence of malignant and borderline ovarian cancer in pre-and post-menopausal Chinese women. Oncotarget. 2017 Oct 6;8(46):80589.

18. Negri E, Pelucchi C, Franceschi S, Montella M, Conti E, Dal Maso L et al. Family history of cancer and risk of ovarian cancer. Eur J Cancer 2003; 39: 505– 10.

19. Chen S, Dai X, Gao Y, Shen F, Ding J, Chen Q. The positivity of estrogen receptor and progesterone receptor may not be associated with metastasis and recurrence in epithelial ovarian cancer. Scientific Reports. 2017 Dec 5;7(1):1-7.

20. Naik PS, Deshmukh S, Khandeparkar SG, Joshi A, Babanagare S, Potdar J, et al. Epithelial ovarian tumours: clinicopathological correlation and immunohistochemical study. J Midlife Health. 2015;6(4):178–83

21. Verma N, Kumar M, Sagar M, Babu S, Singhai A, Singh N, et al. Expression of estrogen receptor, progesterone receptor, and human epidermal growth factor receptor type 2/neu in surface epithelial ovarian tumours and its clinicohistopathological correlation. Indian J Health Sci Biomed Res 2018; 11:19-24.

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Awards, Research and Publication incentive Schemes by IJCRR

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One article from every issue is selected for the ‘Best Article Award’. Authors of selected ‘Best Article’ are rewarded with a certificate. IJCRR Editorial Board members select one ‘Best Article’ from the published issue based on originality, novelty, social usefulness of the work. The corresponding author of selected ‘Best Article Award’ is communicated and information of award is displayed on IJCRR’s website. Drop a mail to editor@ijcrr.com for more details.

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This award is instituted to encourage women researchers to publish her work in IJCRR. Women researcher, who intends to publish her research work in IJCRR as the first author is eligible to apply for this award. Editorial Board members decide on the selection of women researchers based on the originality, novelty, and social contribution of the research work. The corresponding author of the selected manuscript is communicated and information is displayed on IJCRR’s website. Under this award selected women, the author is eligible for publication incentives. Drop a mail to editor@ijcrr.com for more details.

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Best Article Award

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A Study by Gainneos PD et al. entitled "A Comparative Evaluation of the Levels of Salivary IgA in HIV Affected Children and the Children of the General Population within the Age Group of 9 – 12 Years – A Cross-Sectional Study" is awarded Best Article of Vol 13 issue 05 Special issue on Recent Advances in Dentistry for better Oral Health
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A Study by Sindhu Priya E S et al. entitled "Neuroprotective activity of Pyrazolone Derivatives Against Paraquat-induced Oxidative Stress and Locomotor Impairment in Drosophila melanogaster" is awarded Best Article for Vol 12 issue 23
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A study by Amruta Choudhary et al. entitled "Family Planning Knowledge, Attitude and Practice Among Women of Reproductive Age from Rural Area of Central India" is awarded Best Article for special issue "Modern Therapeutics Applications"
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A Study by Muhammet Lutfi SELCUK and Fatma entitled "Distinction of Gray and White Matter for Some Histological Staining Methods in New Zealand Rabbit's Brain" is awarded best article for  Vol 12 issue 11
A Study by Anamul Haq et al. entitled "Etiology of Abnormal Uterine Bleeding in Adolescents – Emphasis Upon Polycystic Ovarian Syndrome" is awarded best article for  Vol 12 issue 10
A Study by entitled "Estimation of Reference Interval of Serum Progesterone During Three Trimesters of Normal Pregnancy in a Tertiary Care Hospital of Kolkata" is awarded best article for  Vol 12 issue 09
A Study by Ilona Gracie De Souza & Pavan Kumar G. entitled "Effect of Releasing Myofascial Chain in Patients with Patellofemoral Pain Syndrome - A Randomized Clinical Trial" is awarded best article for  Vol 12 issue 08
A Study by Virendra Atam et. al. entitled "Clinical Profile and Short - Term Mortality Predictors in Acute Stroke with Emphasis on Stress Hyperglycemia and THRIVE Score : An Observational Study" is awarded best article for  Vol 12 issue 07
A Study by K. Krupashree et. al. entitled "Protective Effects of Picrorhizakurroa Against Fumonisin B1 Induced Hepatotoxicity in Mice" is awarded best article for issue Vol 10 issue 20
A study by Mithun K.P. et al "Larvicidal Activity of Crude Solanum Nigrum Leaf and Berries Extract Against Dengue Vector-Aedesaegypti" is awarded Best Article for Vol 10 issue 14 of IJCRR
A study by Asha Menon "Women in Child Care and Early Education: Truly Nontraditional Work" is awarded Best Article for Vol 10 issue 13
A study by Deep J. M. "Prevalence of Molar-Incisor Hypomineralization in 7-13 Years Old Children of Biratnagar, Nepal: A Cross Sectional Study" is awarded Best Article for Vol 10 issue 11 of IJCRR
A review by Chitra et al to analyse relation between Obesity and Type 2 diabetes is awarded 'Best Article' for Vol 10 issue 10 by IJCRR. 
A study by Karanpreet et al "Pregnancy Induced Hypertension: A Study on Its Multisystem Involvement" is given Best Paper Award for Vol 10 issue 09

List of Awardees

A Study by Ese Anibor et al. "Evaluation of Temporomandibular Joint Disorders Among Delta State University Students in Abraka, Nigeria" from Vol 13 issue 16 received Emerging Researcher Award


A Study by Alkhansa Mahmoud et al. entitled "mRNA Expression of Somatostatin Receptors (1-5) in MCF7 and MDA-MB231 Breast Cancer Cells" from Vol 13 issue 06 received Emerging Researcher Award


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International Journal of Current Research and Review (IJCRR) provides platform for researchers to publish and discuss their original research and review work. IJCRR can not be held responsible for views, opinions and written statements of researchers published in this journal

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