Role of Phytochemicals in the Treatment of Breast Cancer: Natural Swords Battling Cancer Cells

Breast cancer is the most common type of malignancy among ladies (around 30% of newly diagnosed patients every year). To date, various modern treatment modalities for breast cancer, such as radiotherapy, surgical method, hormonal therapy, and chemotherapeutic drug utilisation, are available. However, adverse drug reactions, therapeutic resistance, metastasis, or cancer reoccurrence chances remain the primary causes of mortality for breast cancer patients. To overcome all the potential drawbacks, we need to investigate novel techniques and strategies that are not considered previously to treat breast cancer effectively with safety and efficacy. For centuries, we utilise phytochemicals to treat various diseases because of their safety, low-cost, and least or no side effects. Recently, naturally produced phytochemicals gain immense attention as potential breast cancer therapeutics because of their ideal characteristics; for instance, they operate via modulating molecular pathways associated with cancer growth and progression. The primary mechanism involves inhibition of cell proliferation, angiogenesis, migration, invasion, increasing anti-oxidant status, initiation of the arrest of the cell cycle, and apoptosis. Remedial viability gets effectively enhanced when phytochemicals work as adjuvants with chemotherapeutic drugs. This comprehensive review revolves around the latest chemopreventive, chemotherapeutic, and chemoprotective treatments with their molecular mechanisms to treat breast cancer by utilising phytochemicals such as vinca alkaloids, resveratrol, curcumin, paclitaxel, silibinin, quercetin, genistein, and epigallocatechin gallate. The authors wish to extend the field of phytochemical study for its scientific validity and its druggability.