Abstract: Provided herein are methods of treating cancer in a subject, wherein the cancer is extrachromosomal DNA-positive (ecDNA-positive) or therapeutically resistant, the method comprising administering to the subject a therapeutically effective amount of a replication stress (RS) pathway agent alone or in combination with a targeted therapeutic.

Abstract: Provided herein are methods of treating cancer in a subject, wherein the cancer is extrachromosomal DNA-positive (ecDNA-positive) or therapeutically resistant, the method comprising administering to the subject a therapeutically effective amount of a replication stress (RS) pathway agent alone or in combination with a targeted therapeutic.

Abstract: Provided herein are methods of treating cancer in a subject, wherein the cancer is extrachromosomal DNA-positive (ecDNA-positive) or therapeutically resistant, the method comprising administering to the subject a therapeutically effective amount of a replication stress (RS) pathway agent alone or in combination with a targeted therapeutic.

Abstract: Provided herein are methods of treating cancer in a subject, wherein the cancer is extrachromosomal DNA-positive (ecDNA-positive) or therapeutically resistant, the method comprising administering to the subject a therapeutically effective amount of a replication stress (RS) pathway agent alone or in combination with a targeted therapeutic.

Abstract: Provided herein are methods of treating cancer in a subject, wherein the cancer is extrachromosomal DNA-positive (ecDNA-positive) or therapeutically resistant, the method comprising administering to the subject a therapeutically effective amount of a replication stress (RS) pathway agent alone or in combination with a targeted therapeutic.

Abstract: Provided herein are methods of treating cancer in a subject, wherein the cancer is extrachromosomal DNA-positive (ecDNA-positive) or therapeutically resistant, the method comprising administering to the subject a therapeutically effective amount of a replication stress (RS) pathway agent alone or in combination with a targeted therapeutic.

Abstract: There are provided, inter alia, methods for treatment of cancer. The methods include means of identifying the NAD biosynthetic pathway on which depend cancer cells in a tumor, in a subject suffering from cancer. The methods further include administering to a subject in need a therapeutically effective amount of an inhibitor of the NMRK1 enzyme pathway to a tumor where the cancer cells are dependent of the NAD salvage pathway, allowing to lower the of dose FK866 administered to the subject. The methods also include administering to a subject in need a therapeutically effective amount of a bacterial inhibitor of NADSYN1 to a tumor where the cancer cells depend on the Preiss Handler pathway.