Which class of antineoplastic drugs does Doxorubicin belong to? Pharmacological classification and clinical significance analysis

Doxorubicin is a broad-spectrum anti-tumor drug that belongs to the Anthracycline antibiotics. It was first isolated from Streptomyces and is widely used in the treatment of a variety of solid tumors and hematological malignancies due to its potent anti-tumor activity. Doxorubicin is one of the classic cytotoxic chemotherapy drugs and is included in the World Health Organization's Essential Drugs List, which has great clinical significance.

Pharmacologically, doxorubicin mainly inhibits the proliferation of tumor cells by binding to the DNA helical structure and inserting between DNA base pairs, preventing DNA replication and transcription. At the same time, it can also damage cell membranes and mitochondria by generating free radicals and induce cell apoptosis. In addition, doxorubicin also inhibits the activity of topoisomerase II, making DNA double-strand breaks irreparable. This multi-target mechanism gives it significant anti-tumor effects.

Clinically, doxorubicin is widely used in breast cancer, ovarian cancer, lung cancer, gastrointestinal tumors, and various hematological malignancies, such as acute leukemia and Hodgkin lymphoma. It is often used as an important component of combination chemotherapy regimens to improve efficacy and reduce the risk of drug resistance. Due to its strong potency, treatment plans usually require strict dosage control to avoid serious adverse reactions such as cardiotoxicity and bone marrow suppression.
The clinical significance of doxorubicin is also reflected in its combined application with targeted drugs and new immunotherapy. Through the combination regimen, patients' survival and quality of life can be improved while retaining the anti-tumor effect. At the same time, the pharmacological properties of doxorubicin provide a reference for the development of new drugs. For example, the development of liposomal doxorubicin effectively reduces cardiotoxicity, making it safer and more controllable in clinical practice.
Reference: https://www.drugs.com/