Probiotic-based chemotherapy targeting cancer stem cells and immune-inhibitory receptors in advanced metastatic cancers: A pharmaceutical mixture encompassing a pharmacological formulation encompassing Metformin, Navitoclax/ABT-263, & Dasatinib (MND) and probiotic Lactobacillus rhamnosus increases the expression of tumor suppressor genes, such as  E-cadherin, GRHL3,  PTPN14, p53, and TA-p73/p63, inhibits immune-inhibitory receptors/molecules, targets cancer stem cells, confers protection against chemoresistance and prolongs survival, via up-regulation of its target gene, 22/April/2019, 9.53 pm