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Inicio Revista Española de Patología Comparison of B-cell lymphoma 2 (BCL-2) expression in disordered proliferative e...
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Available online 4 July 2024
Comparison of B-cell lymphoma 2 (BCL-2) expression in disordered proliferative endometrium and simple endometrial hyperplasia
Comparación de la expresión del linfoma de células B2 (BCL-2) en el endometrio proliferativo desordenado y la hiperplasia endometrial simple
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Zahra Ghorbanniadelavara, Mohammadreza Jalali Nadoushanb,
Corresponding author
, Masood Soltanipura,c
a Medical Students Research Committee, Shahed University, Tehran, Iran
b Department of Pathology, Faculty of Medicine, Shahed University, Tehran, Iran
c Quality of Life Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
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Table 1. Demographic characteristics of the patients included in the study.
Table 2. Comparison of BCL-2 expression in DPE and simple EH.
Table 3. Relationship between age and BCL-2 expression in DPE and simple EH.
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Abstract
Background and objective

B-cell lymphoma-2 (BCL-2) is an anti-apoptotic protein that may play a role in disordered proliferative endometrium (DPE) and endometrial hyperplasia (EH). Several studies have investigated BCL-2 expression in normal, hyperplastic endometrium and endometrial adenocarcinoma, with conflicting results. Therefore, the present study aimed to compare the expression of BCL-2 in disordered proliferative endometrium and simple EH.

Methods

In this cross-sectional study, 63 DPE and 67 SEH samples from patients referred to Mostafa Khomeini Hospital between 2017 and 2022 were immunohistochemically stained by BCL-2 antibody. BCL-2 expression in each sample was reported as negative, weak positive, and strong positive. The findings were analyzed using SPSS version 16 software.

Results

Negative, weakly positive, and strongly positive BCL-2 expression was observed in 55.6%, 38.1%, and 6.3% of DPE samples, and 61.2%, 31.3%, and 7.5% of SEH samples, respectively, which does not show a statistically significant difference (p=0.718). There was no relationship between the age of patients and BCL-2 expression in any of the two groups of DPE and SEH (p=0.378 and p=0.178, respectively).

Conclusion

BCL-2 expression is observed with a relatively similar frequency in DPE and SEH samples, and it is probably under the control of oestrogen hormone as the main factor involved in the pathogenesis of these lesions.

Keywords:
Disordered proliferative endometrium
Simple endometrial hyperplasia
BCL-2
Apoptosis
Resumen
Antecedentes y objetivo

El linfoma de células B2 (BCL-2) es una proteína antiapoptótica que puede desempeñar un papel en el endometrio proliferativo desordenado (EPD) y en la hiperplasia endometrial (HE). Varios estudios han investigado la expresión de BCL-2 en el endometrio normal, en el hiperplásico y en el adenocarcinoma de endometrio, con resultados contradictorios. Por lo tanto, el objetivo del presente estudio fue comparar la expresión de BCL-2 en el endometrio proliferativo desordenado y la hiperplasia endometrial simple.

Métodos

En este estudio transversal se tiñeron inmunohistoquímicamente 63 muestras de EPD y 67 muestras de HE de pacientes remitidas al Hospital Mostafa Khomeini entre 2017 y 2022 con anticuerpos BCL-2. La expresión de BCL-2 en cada muestra se informó como negativa, débilmente positiva y fuertemente positiva. Los hallazgos se analizaron utilizando el programa SPSS versión 16.

Resultados

Se observó expresión negativa, débilmente positiva y fuertemente positiva de BCL-2 en el 55,6%, el 38,1% y el 6,3% de las muestras de EPD, y en el 61,2%, el 31,3% y el 7,5% de las muestras de HE, respectivamente, lo que no muestra una diferencia estadísticamente significativa (p=0,718). No hubo relación entre la edad de las pacientes y la expresión de BCL-2 en ninguno de los dos grupos de EPD y HE (p=0,378 y p=0,178, respectivamente).

Conclusión

La expresión de BCL-2 se observa con una frecuencia relativamente similar en las muestras de EPD y HE, y probablemente esté bajo el control de la hormona estrógeno como el principal factor que interviene en la patogénesis de estas lesiones.

Palabras clave:
Endometrio proliferativo desordenado
Hiperplasia endometrial simple
BCL-2
Apoptosis

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