HPV, p16INK4a, and Genetic Changes in Vietnamese Cervical Neuroendocrine Cancer

| Posted in: Science

Journal name: The Malaysian Journal of Medical Sciences
Original article title: Human Papillomavirus Infection, p16INK4a Expression and Genetic Alterations in Vietnamese Cervical Neuroendocrine Cancer
The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access journal published online at least six times a year. It covers all aspects of medical sciences and prioritizes high-quality research.
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Original source:

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Author:

To Van Ta, Quang Ngoc Nguyen, Van-Long Truong, Toan Trung Tran, Hung Phi Nguyen, Linh Dieu Vuong


The Malaysian Journal of Medical Sciences:

(A peer-reviewed, open-access journal)

Full text available for: Human Papillomavirus Infection, p16INK4a Expression and Genetic Alterations in Vietnamese Cervical Neuroendocrine Cancer

Year: 2019 | Doi: 10.21315/mjms2019.26.5.15

Copyright (license): CC BY 4.0


Download the PDF file of the original publication


Summary of article contents:

Introduction

Neuroendocrine cervical cancer is an aggressive and rare subtype of cervical cancer, representing 0.5% to 3% of all cervical carcinomas. This cancer type is characterized by poor prognosis and a tendency for metastasis. In this study, researchers aimed to analyze human papillomavirus (HPV) infection prevalence and molecular abnormalities in neuroendocrine carcinomas of the uterine cervix among Vietnamese patients. The study focused on identifying high-risk HPV genotypes, characterized primarily by HPV types 16, 18, 31, and 45, and observed the correlation between HPV infection and markers such as p16INK4a expression, p53 mutations, and other genetic variations in the tumors.

Prevalence of High-Risk HPV Infection

The study revealed that 86.7% of the examined neuroendocrine cervical tumors were infected with high-risk HPV types, with HPV 18 being the most common strain identified. Overexpression of the p16INK4a protein was found in 93.3% of cases and significantly associated with high-risk HPV infections, suggesting it may serve as a reliable biomarker for HPV presence in these tumors. While p53 mutations were identified in a minority of cases (16.7%), no significant correlations were observed between HPV infections and specific genetic mutations, indicating that HPV infection might play a pivotal role in the development of cervical neuroendocrine carcinoma, independent of the genetic profile of the disease.

Conclusion

The findings of this study underscore the critical role of high-risk HPV in the pathogenesis of cervical neuroendocrine carcinoma, specifically within the Vietnamese population. With a notable incidence of p16INK4a expression correlating with HPV infection, these results suggest a potential focus for cervical cancer screening and targeted therapeutic strategies. The study recommends further research with larger sample sizes to enhance understanding of the genetic alterations in these tumors and their links to HPV infection, which may ultimately improve prognosis and treatment outcomes for affected patients.

FAQ section (important questions/answers):

What is neuroendocrine cervical cancer and its characteristics?

Neuroendocrine cervical cancer is a rare, aggressive subtype of cervical cancer. It represents 0.5%–3% of all cervical carcinomas and often has a poor prognosis due to its aggressive nature and high tendency for lymph node metastasis.

What role does HPV play in cervical neuroendocrine carcinoma?

High-risk HPV infection plays a significant oncogenic role in cervical neuroendocrine carcinoma, with HPV types 16, 18, 31, and 45 being prevalent in Vietnamese patients according to the study findings.

What molecular abnormalities were identified in the study?

The study detected p53 mutations in 16.7% and NRAS mutations in 3.3% of cases, while no mutations in EGFR, KRAS, or BRAF were found, demonstrating the unusual mutation landscape in cervical neuroendocrine carcinomas.

How is p16INK4a related to high-risk HPV strains?

The study found a significant association between p16INK4a overexpression and high-risk HPV infections, suggesting that p16INK4a may serve as a biomarker for HPV in neuroendocrine cervical carcinoma.

Glossary definitions and references:

Scientific and Ayurvedic Glossary list for “HPV, p16INK4a, and Genetic Changes in Vietnamese Cervical Neuroendocrine Cancer”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.

1) Cancer:
Cancer is a major public health challenge globally, second most common cancer in women. It describes the disease wherein abnormal cells divide uncontrollably and invade other tissues. In the context of this text, it specifically refers to neuroendocrine cervical cancer, a rare subtype characterized by aggressive behavior and poor prognosis.

2) Mutation:
Mutations are changes in the DNA sequence of an organism. They can result from environmental factors or errors during DNA replication. In this study, specific mutations in genes like p53 and NRAS were examined, which play significant roles in cancer development and progression, especially in neuroendocrine cervical cancer.

3) Table:
The table presented in the study lists crucial data about the prevalence of HPV genotypes, mutations, and their correlations with clinicopathological parameters. Tables serve as vital tools in research for summarizing and visualizing large sets of data, enabling easier comparison and analysis of results among different variables.

4) Study (Studying):
The study is a systematic investigation aiming to understand the prevalence and molecular characteristics of neuroendocrine cervical cancer in Vietnamese patients. It employed clinical, histological, and genetic analyses to draw conclusions about the role of HPV infections and genetic mutations in this aggressive form of cancer.

5) Disease:
Disease refers to a pathological condition that disrupts normal bodily functions. In this context, it specifically pertains to neuroendocrine cervical cancer, a rare malignancy. Understanding the disease is crucial for developing effective diagnosis, treatment, and preventive measures, especially as it exhibits aggressive behavior and poor outcomes.

6) Ramalingam:
Ramalingam appears to be one of the authors contributing to the study. Authors are vital in research publications as they provide expertise, design research methodologies, and interpret results. The credibility and depth of the study are often linked to the qualifications and background of its authors.

7) Srivastava (Shri-vastava, Shrivastava, Sri-vastava):
Srivastava is referenced in the study context, likely related to previous research or methodologies. In research, referencing established works aids in validating new findings and connecting them with the broader scientific discourse, which can help in addressing unanswered questions about cancer biology and treatment.

8) Devada:
Devada is mentioned among the authors or contributors to the study. Like other authors, Devada’s role could involve data collection, analysis, or providing insights into the research. Collaborative efforts enhance the quality of research, bringing diverse perspectives that contribute to a comprehensive understanding of the study topic.

9) Thomas:
Thomas likely refers to an author associated with the research, contributing either through intellectual input or practical research activities. The inclusion of recognized researchers adds credibility to the findings and helps ensure that the methodologies employed meet scientific standards critical for the field of cancer research.

10) Mahmud:
Mahmud likely represents another contributor in the study team, whose input is essential for research outcomes. The collaboration among different specialties is key in complex fields like oncology, where diverse expertise is needed to explore multifaceted issues related to cancer biology, treatment, and patient care.

11) Line:
Line can refer to guiding principles or methodologies followed during the study, or possibly a reference in the context of results. Establishing clear lines of inquiry is important in scientific research, enabling researchers to focus on specific hypotheses or phenomena while maintaining a structured investigative approach.

12) Viru:
Viru may refer to a specific type of virus or infectious agent, likely discussing the role of human papillomavirus (HPV) in cervical cancer development. Understanding the viral contributions helps unravel the mechanisms behind cancer progression, leading to improved prevention and treatment strategies targeting virus-related malignancies.

13) Pur:
Poor in this context refers to the unfavorable prognosis often associated with neuroendocrine cervical cancer. Terms indicate the intensity of a disease's impact on patient outcomes, highlighting the need for more research to improve understanding, diagnostics, and therapeutic approaches to enhance survival rates in affected populations.

14) Accumulation (Accumulating, Accumulate):
Accumulated indicates the gathering of data over time from various studies to form a broader understanding. In this research, it refers to existing literature that informs the context and previous findings related to HPV prevalence and mutations in cervical neuroendocrine cancer, underpinning the current study’s relevance.

15) Discussion:
Discussion sections are crucial in research articles as they interpret the results, compare them with existing literature, and propose implications. In this study, it reflects the analysis of the findings regarding HPV and molecular mutations in cervical cancer, allowing researchers to contemplate their significance in clinical practice.

16) Developing:
Developing relates to countries with less access to healthcare resources, which experience a disproportionate burden of cervical cancer. Understanding this aspect aids in targeting interventions and increasing awareness in these regions to enhance screening, vaccination, and treatment availability, ultimately improving health outcomes for affected populations.

17) Knowledge:
Knowledge encompasses the understanding gained through the research process. In this context, it refers to the insights gathered about high-risk HPV and molecular abnormalities in cervical neuroendocrine cancers, contributing to the existing base of scientific literature and enhancing future research directions and clinical practices.

18) Quality:
Quality refers to the standards and rigor of the research methods used in the study. High-quality research is fundamental in ensuring that findings are reliable, reproducible, and applicable in clinical contexts, influencing guidelines, and patient management strategies in the realm of cancer diagnosis and treatment.

19) Medium:
Medium can refer to the methods or channels used for data collection or analysis. In research, selecting appropriate media or techniques for experiments and observations is essential to yield significant results that can advance understanding and treatment of conditions such as neuroendocrine cervical cancer.

20) Rules:
Rules pertain to the principles or guidelines governing research methodologies. They ensure the reliability and validity of scientific inquiry, especially in studies concerning diseases like cancer where ethical considerations, statistical analyses, and proper conduct in data handling are critically important to the integrity of findings.

21) Sign:
Sign refers to indicators or symptoms associated with a disease. In the context of research, recognizing signs of malignancy, such as p16 overexpression in cervical cancer, is paramount for early diagnosis and treatment, contributing to better patient outcomes and survival rates in cancer care.

22) Post:
Post suggests subsequent actions or discussions following the completion of a study. In research, post-analysis conferences or publications help disseminate findings, evaluate implications, and foster further research inquiries, continuing the cycle of knowledge-building and innovation in addressing critical health issues like cancer.

Other Science Concepts:

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Discover the significance of concepts within the article: ‘HPV, p16INK4a, and Genetic Changes in Vietnamese Cervical Neuroendocrine Cancer’. Further sources in the context of Science might help you critically compare this page with similair documents:

Statistical analysis, Polymerase chain reaction, Surgical resection, Hematoxylin and eosin, Human papillomavirus, Cervical carcinoma, Cervical cancer, DNA Isolation, Human papillomavirus (HPV), Epidermal growth factor receptor, EGFR mutations, Immunohistochemical Staining, High-risk HPV, Tumour characteristics, HPV infection, Human Papillomavirus infection, Molecular modification, Pathological stage, Clinical characteristic, KRAS mutation, P53 mutation, Cervical carcinogenesis, Genetic alteration, BRAF mutation.

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