I don’t know much about cancer, but there’s potentially critical revelations of fundamental medicinal roles for niacin in combination with curcumin (and monolaurin with how hard COVID is attacking the gut) in concert with regulation of immune and metabolic health through the GPR109A receptor.
Will curcumin nanosystems be the next promising antiviral alternatives in COVID-19 treatment trials?
https://www.sciencedirect.com/science/article/pii/S0753332221003632
Turmeric as a Possible Treatment for COVID-19-Induced Anosmia and Ageusia
https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC8502749/
Nicotinate-curcumin inhibits AngII-induced vascular smooth muscle cell phenotype switching by upregulating Daxx expression
https://www.tandfonline.com/doi/full/10.1080/19336918.2021.1909899
SARS-CoV-2-Induced Gut Microbiome Dysbiosis: Implications for Colorectal Cancer
https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC8198029/