Natural sugar-based therapy targeting cancer stem cells and immune-inhibitory receptors in advanced metastatic cancers: A pharmaceutical mixture encompassing a pharmacological formulation encompassing Xylobiose (a disaccharide of xylose, with a  a beta-1,4-bond), and probiotic Lactobacillus rhamnosus increases the expression of tumor suppressor genes, such as  HNF4α, CDK2AP1, E-cadherin, p53, and TA-p73/p63, stalls cell cycle progression, inhibits immune-inhibitory receptors/molecules, suppresses cancer stem cell proliferation, inhibits migration, invasion and metastasis of cancer cells, confers protection against chemoresistance and prolongs survival, via up-regulation of its target gene, 14/May/2019, 10.40 am