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Relationship of HER2 with age, gender, location of the tumor, and tumor budding in colorectal adenocarcinoma at H. Adam Malik General Hospital, Medan, Indonesia

  • Adi Muradi Muhar ,
  • Lidya Imelda Laksmi ,
  • Nova Sabrina Lubis ,


Abstract

Link of Video Abstract: https://youtu.be/_B_bL8gi7hU

 

Background: Colorectal carcinoma is one of the most common malignancies and is one of the leading causes of cancer-related death worldwide. The incidence of colorectal carcinoma in Indonesia is reported to be 12.8 per 100,000 adult population, accounting for 9.5% of all cancer-related deaths. Assessment of Human Epidermal Growth Factor Receptor 2 (HER2) expression is used to help predict tumor behavior and the effect of anti-HER2 receptor therapy. This study aims to analyze the relationship between HER2 immunohistochemical expression with age, gender, tumor location, and tumor budding in this malignancy.

Methods: This study is a cross sectional analytic study of 45 samples diagnosed with colorectal carcinoma at H. Adam Malik General Hospital Medan. Tumor budding was assessed for tumor invasiveness based on the International Tumor Budding Consensus Conference (ITBCC) 2016 in a field area of ​​0.785 mm2 with a 20x objective lens using a three-level scoring system, which was categorized into low budding (0-4 buds), intermediate budding (5-9 buds), and high budding (≥10 buds). Staining was performed using immunohistochemistry of the monoclonal anti-human HER2 anti-human DBS manufacturer, which would appear positive on the tumor cell membrane at a dilution of 1:100. HER2 expression was assessed using the HERACLES criteria. The results are presented as a score of 0, 1+, 2+, 3+, then categorized into negative (score 0-2+) and positive (score 3+). Data were analyzed using SPSS version 25.0 for Windows.

Results: There was no significant relationship between HER2 and clinicopathological parameters such as age (p=0.755), gender (p>0.05) and tumor location (p>0.05). However, there was a significant relationship between HER2 and tumor budding histopathological parameters with a value of p=0.011 in a positive direction (the greater the number of budding, the more positive HER2 expression, and vice versa).

Conclusion: HER2 is not significantly related to age, gender and tumor location. However, it is significantly associated with tumor budding. HER2 plays a role in the proliferation and differentiation of colorectal carcinoma tumor cells.

Keywords: HER2 colorectal cancer tumor budding

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How to Cite

Muhar, A. M., Laksmi, L. I., & Lubis, N. S. (2023). Relationship of HER2 with age, gender, location of the tumor, and tumor budding in colorectal adenocarcinoma at H. Adam Malik General Hospital, Medan, Indonesia. Bali Medical Journal, 12(3), 3187–3191. https://doi.org/10.15562/bmj.v12i3.4805
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Adi Muradi Muhar
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BMJ Journal

Lidya Imelda Laksmi
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Nova Sabrina Lubis
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