Phytochemicals for Cancer Treatment: An Update on Plant-Derived Anti-Cancer Compounds and their Mechanisms of Action.

Cancer remains one of the major causes of morbidity and mortality worldwide. Scientists from different fields are working to devise an efficient treatment strategy in order to reduce the global burden of cancer. Commonly used treatment approaches for cancer treatment include chemotherapy, immunotherapy, photodynamic therapy, radiation, surgery, etc. These treatment procedures have several pitfalls, such as toxicity, limited bioavailability, rapid elimination, poor specificity, and high cost. On the other side, plant-derived anticancer compounds exhibit several advantages and can overcome these shortcomings. Plant-based anticancer compounds are safer, potent, easily available, and comparatively cost-effective. The current review discusses pure plant- based compounds that are used as a therapeutic remedy for anticancer application. The proposed mechanisms of action, through which these compounds inhibit cancer cell growth, tumor growth, angiogenesis, instigate apoptosis, cytotoxicity, mitochondrial membrane degradation, and reduce cell viability as well as cell cycle progression, are also reviewed. These naturally occurring compounds exhibit great therapeutic potential and could be used as candidate drugs in clinical applications.

In vitro antifungal and antibacterial activities of extracts of Galium tricornutum subsp. longipedunculatum.

The aim of this study was to evaluate the antimicrobial activity of crude ethanolic extracts and fractions of the ariel parts and the fruits of Galium tricornutum subsp. longipedunculatum, traditionally used in northern areas of Pakistan for treating microbial infections of skin. Extracts and their fractions were tested against six bacteria and six fungal strains using the hole diffusion method and macrodilution method. All extracts and fractions possessed significant antimicrobial effect. Four fungal strains, Candida albicans, Trichophyton longifusus, Fusarium.solani and Candida glabrata, showed interesting susceptibility profiles when evaluated using the extracts and fractions with MICs ranging from 0.18 to 200 mg/mL. In case of bacterial strains, Staphylococcus aureus, Pseudomonas aeruginosa and Salmonella typhi were significantly susceptible to the extracts and fractions with MICs ranging from 0.12 to 200 mg/mL. Comparative results were carried out using imepenem, miconazole and amphotericin B as standard antibiotics.