Abstract: The present invention provides therapeutic, diagnostic, and prognostic methods for cancer. The invention provides methods of treating a cancer, methods of determining whether an individual having a cancer is likely to respond to a treatment including an immune checkpoint inhibitor (e.g., a PD-L1 axis binding antagonist), methods of predicting responsiveness of an individual having a cancer to a treatment including an immune checkpoint inhibitor (e.g., a PD-L1 axis binding antagonist), methods of selecting a therapy for an individual having a cancer, methods of providing a prognosis for an individual having a cancer, and methods of monitoring a response of an individual having a cancer, based on a blood tumor mutational burden (bTMB) score or a maximum somatic allele frequency (MSAF) from a sample (e.g., a whole blood sample, a plasma sample, a serum sample, or a combination thereof) from the individual.

Abstract: The present invention provides therapeutic, diagnostic, and prognostic methods for cancer. The invention provides methods of treating a cancer, methods of determining whether an individual having a cancer is likely to respond to a treatment including an immune checkpoint inhibitor (e.g., a PD-L1 axis binding antagonist), methods of predicting responsiveness of an individual having a cancer to a treatment including an immune checkpoint inhibitor (e.g., a PD-L1 axis binding antagonist), methods of selecting a therapy for an individual having a cancer, methods of providing a prognosis for an individual having a cancer, and methods of monitoring a response of an individual having a cancer, based on a blood tumor mutational burden (bTMB) score or a maximum somatic allele frequency (MSAF) from a sample (e.g., a whole blood sample, a plasma sample, a serum sample, or a combination thereof) from the individual.

Abstract: Compositions for targeted mutagenesis of cell surface receptors for HIV and methods of their use are provided herein. The compositions include triplex-forming molecules that displace the polypyrimidine strand of target duplex and form a triple-stranded structure and hybrid duplex in a sequence specific manner with the polypurine strand of the target duplex. The triplex-forming molecules include a mixed-sequence “tail” which increases the stringency of binding to the target duplex, improves the frequency of modification at the target site, and reduces the requirement for a polypurine:polypyrimidine stretch. Methods for using the triplex-forming molecules in combination with one or more donor oligonucleotides for targeted modification of sites within or adjacent to genes that encodes cell surface receptors for human immunodeficiency virus (HIV) are also disclosed. Methods for ex vivo and in vivo prophylaxis and therapy of HIV infection using the disclosed compositions are also provided.