A Closer Look At Targeted Cancer Therapy

Cancer treatment has advanced significantly from the broad approaches of the past. According to Dr. Murali Subramanian, MBBS, MD-General Medicine, DM-Medical Oncology, modern therapies are increasingly tailored to the unique characteristics of an individual’s tumour. This personalisation allows doctors to target the disease more effectively, reduce unnecessary side effects, and improve overall outcomes.

Presence and Location of Targets in Cancer Cells

For targeted cancer therapy to work, cancer cells must have a specific “target” an abnormality that drives their growth. These targets can be located on the cell surface, within the cytoplasm, or deep inside the cell. Even patients with the same type and stage of cancer, like breast cancer, may have tumours with different targets, meaning their cancers behave differently. Because of this variability, treatment must be personalised. Each specific abnormality requires a drug designed to act precisely on that target, ensuring maximum effectiveness and minimising unnecessary side effects.

How Targeted Cancer Therapy Works

Chemotherapy vs. targeted therapy. Targeted cancer therapy focuses on the specific abnormalities within cancer cells that drive their growth and proliferation. These cancer cell targets vary from patient to patient, even among those with the same type of cancer, such as breast cancer. By identifying these unique targets, doctors can prescribe drugs that interfere only with the cancer’s growth mechanisms.

Unlike traditional chemotherapy, which attacks all rapidly dividing cells, targeted therapy acts precisely, often sparing healthy tissue. Common approaches include blocking internal growth signals, preventing tumour blood supply, and enhancing immune recognition of cancer cells.

Types of Targeted Cancer Therapies

Oral cancer medication includes 

Tyrosine Kinase Inhibitors (TKIs)
These drugs block enzymes critical for cancer cell proliferation. Many TKIs are available as oral medications for cancer, allowing patients to take them at home with ease.

Monoclonal Antibodies
These lab-engineered proteins attach to specific cancer cell markers and are usually administered as intravenous cancer therapy. They can inhibit tumour growth directly or mark the cells for destruction by the immune system.

Other targeted therapies focus on genetic mutations or hormone receptors, depending on the cancer’s molecular profile.

Final thoughts 

Targeted cancer therapy offers a precise approach by focusing on the unique abnormalities driving tumour growth. By sparing healthy cells and addressing specific cancer cell targets, it provides more effective treatment with generally fewer side effects, representing a significant advancement over traditional chemotherapy in personalised cancer care.

Disclaimer: The information in this guide is intended for general awareness and educational purposes only. It should not be considered a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of your doctor or a qualified healthcare provider with any questions you may have about lung cancer, immunotherapy, or any other medical condition. Do not ignore professional advice or delay seeking care because of something you have read here. While insights are provided by Dr. Murali Subramanian and based on trusted sources, individual cases may differ. MrMed does not promote or endorse any specific procedure, product, or treatment unless clearly mentioned.