Abstract: The current disclosure provides for methods of identifying and treating small cell neuroendocrine (SCN) tumors and small-round-blue cell tumor (SRBCT). Aspects of the disclosure relate to a method comprising measuring the level of expression of one or more biomarkers from Tables 1-3 in a biological sample from a cancer patient. Further aspects relate to a method for treating small cell neuroendocrine (SCN) cancer or small-round-blue cell tumor (SRBCT) in a patient comprising administering a cancer treatment to the patient, wherein the cancer treatment is a treatment selected from Table 4A, 4B, or combinations of treatments from Table 4A and/or 4B.

Abstract: The current methods and compositions provide for a novel therapeutic method for treating patients diagnosed with melanoma, especially those that have become resistant to certain other therapies. Accordingly, certain aspects of the disclosure relate to a method for treating melanoma in a subject, the method comprising administering a composition comprising a ferroptosis-inducing agent or other dedifferentiated melanoma-targeting agent to the subject.

Abstract: An immunocapture-based in vitro kinase assay on an integrated polydimethylsiloxane (PDMS) microfluidics platform that can reproducibly measure kinase activity from as few as 3,000 cells is described. For this platform, the standard radiometric 32P-ATP labeled phosphate transfer assay was adopted. Implementation on a microfluidic device required the development of methods for repeated trapping and mixing of solid-phase affinity micro beads. A solid state beta-particle camera imbedded directly below the microfluidic device was used to provide real-time quantitative detection of the signal from this and other microfluidic radio bioassays. The integrated device can measure ABL protein kinase activity from BCR-ABL positive leukemia patient samples, and can measure the small molecule phosphorylation such as phosphorylation of the deoxycytidine analog 18F-FAC by deoxycytidine kinase (dCK) isolated from cell lysates.