Abstract: The invention provides a method for treating cancer in which a level of reduced folate carrier (RFC) or folylpolyglutamate synthetase (FPGS) in cancer cells of the biopsy is determined. If the level of RFC or FPGS in the cancer cells is below a threshold value, the cancer is treated with an inhibitor of serine-hydroxymethyl-transferase (SHMT)1. If the level of RFC or FPGS in the cancer cells is above the threshold value, the cancer is treated with an inhibitor of SHMT2.

Abstract: Provided herein are nanoparticles encapsulating a required substance for enriching immune cells with the required substance, compositions comprising the same and methods for their preparation. Further provided are methods of using the nanoparticles for enriching the immune cells with the required substance as well as methods of treating cancer using the nanoparticles or compositions comprising the same.

Abstract: The invention provides a method for treating cancer in which a level of reduced folate carrier (RFC) or folylpolyglutamate synthetase (FPGS) in cancer cells of the biopsy is determined. If the level of RFC or FPGS in the cancer cells is below a threshold value, the cancer is treated with an inhibitor of serine-hydroxymethyltransferase (SHMT)1.

Abstract: A method for creating a metabolic map of metabolic reactions by selecting metabolic reactions active in cancer cells. A core set of metabolic reactions occurring in the cancer cells is designated. For each permutation, whether inhibition of the k-th non-core reaction together with inhibition of all previously deleted non-core reactions results in inhibition of any of the core reactions or results in inhibition of the flux of biomass metabolites to biomass is determined. If inhibition of the k-th non-core reaction and inhibition of all previously deleted non-core reactions does not result in inhibition of any core reactions and does not result in inhibition of the flux of biomass metabolites to biomass, then the k-th non-core reaction is deleted from the set of non-core reactions. The number of permutations for which the k-th non-core reaction is not deleted is determined and a metabolic map is then created based on that number.

Abstract: A method for creating a metabolic map of metabolic reactions by selecting metabolic reactions active in cancer cells. A core set of metabolic reactions occurring in the cancer cells is designated. For each permutation, whether inhibition of the k-th non-core reaction together with inhibition of all previously deleted non-core reactions results in inhibition of any of the core reactions or results in inhibition of the flux of biomass metabolites to biomass is determined. If inhibition of the k-th non-core reaction and inhibition of all previously deleted non-core reactions does not result in inhibition of any core reactions and does not result in inhibition of the flux of biomass metabolites to biomass, then the k-th non-core reaction is deleted from the set of non-core reactions. The number of permutations for which the k-th non-core reaction is not deleted is determined and a metabolic map is then created based on that number.