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Gastrointestinal Malignancy: Genetic Implications to Clinical Applications
Abstract:
Alterations in the DNA sequences of genes, or mutations, have traditionally been viewed as the primary factors driving tumor progression, however, epigenetic evidence would suggest that some heritable traits are mediated by changes in DNA expression that are not dependent upon alterations in the primary DNA sequence. Advances in the genetic understanding of cancer have, in some instances, allowed for more precise administration of anti-neoplastic therapy. Targeted therapies, the aim of which are to target specific cellular proteins or processes used by the cancer cells, have been advocated to avoid the adverse side effects attributable to a lack of cell specificity associated with traditional chemotherapy. Here we aim to describe the current state of understanding regarding the genetic related causes of cancers, the targeted therapies aimed at killing them and the inter-relationship between these two.
Insights
Cancer progression involves genetic mutations and epigenetic changes affecting DNA expression. Targeted therapies offer precise anti-cancer treatment by focusing on specific cellular mechanisms, improving upon traditional chemotherapy.
Area of Science:
- Oncology
- Genetics
- Epigenetics
Background:
- Traditionally, genetic mutations were considered the main drivers of cancer progression.
- Epigenetic modifications, which alter DNA expression without changing the DNA sequence, also play a significant role in heritable traits and cancer.
- Advances in understanding cancer genetics have enabled more precise therapeutic strategies.
Purpose of the Study:
- To review the current understanding of genetic factors in cancer development.
- To discuss targeted therapies designed to combat cancer cells.
- To explore the relationship between cancer genetics and targeted treatment approaches.
Main Methods:
- Literature review of genetic and epigenetic factors in cancer.
- Analysis of targeted therapy mechanisms and their specificity.
- Examination of the interplay between genetic alterations and therapeutic responses.
Main Results:
- Genetic mutations are key drivers of tumor progression.
- Epigenetic changes influence gene expression and heritable traits.
- Targeted therapies provide a more specific approach to cancer treatment compared to traditional chemotherapy, minimizing side effects.
Conclusions:
- Understanding the genetic and epigenetic landscape of cancer is crucial for developing effective treatments.
- Targeted therapies represent a significant advancement in personalized cancer care.
- The integration of genetic insights and targeted therapeutic strategies is essential for improving patient outcomes.
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