Sequencing Laboratory

Chemotherapy is one of the primary treatment modalities for cancer and is often effective in reducing tumor size and inhibiting cancer cell growth. However, one of the major challenges in cancer treatment is drug resistance, which refers to the reduced or lost effectiveness of chemotherapeutic agents on cancer cells. This resistance can arise from various factors, including genetic alterations in cancer cells, patient-specific genetic differences, and epigenetic changes affecting gene expression.

Certain cancers become resistant to chemotherapy due to genetic and molecular mechanisms. For instance, mutations in genes involved in cell cycle regulation or DNA repair can render cancer cells resistant to chemotherapeutic drugs. These characteristics can influence not only the response to treatment but also the patient’s prognosis.

Cancer gene profiling helps identify and analyze these genetic alterations. Such profiles are generated using advanced technologies like Next-Generation Sequencing (NGS) and microarrays, enabling the identification of mutated genes in cancer cells. This information allows physicians to prescribe targeted and personalized therapies, increasing the likelihood of treatment success while avoiding unnecessary or ineffective interventions.

A critical aspect of this process is the identification of genetic biomarkers associated with chemotherapy resistance. These biomarkers allow clinicians to design precise treatment plans, improving the accuracy of cancer management and reducing the risk of recurrence. Moreover, gene profiles can guide the selection of the most effective therapies for individual patients, particularly in cases of advanced cancer or when drug resistance is present.

Finally, Next-Generation Sequencing (NGS), particularly at the exome or genome level (WES and WGS), provides a comprehensive view of genetic and molecular alterations in cancer cells. By integrating multiple approaches, such as disease-specific diagnostic panels, MLPA, SNP arrays, and other techniques, this strategy facilitates more accurate diagnosis and personalized treatment, ultimately contributing to cancer containment and improved patient quality of life.