CPC Class C12Q

This disclosure provides a method for treating HPV-positive squamous cell carcinoma of the head and neck comprising administering to the subject an immune checkpoint inhibitor, e.g., an anti-PD-1 antibody or an anti-PD-L1 antibody. The disclosure also provides a method for treating HPV-negative squamous cell carcinoma of the head and neck administering to the subject an immune checkpoint inhibitor, e.g., an anti-PD-1 antibody or an anti-PD-L1 antibody. The subject can be additionally administered another anti-cancer agent.

Described herein is a mycobacterium mutant, comprising at least one mutation in at least one gene sequence encoding global gene regulators (GGRs) selected from the group consisting of sigH, sigL, sigE, ECF-1, and mixtures thereof, wherein the GGR gene is at least partially inactivated. Described herein also is a vaccine based on the mutant and a method of differentiating between subjects that have been infected with mycobacterium and subjects that have not been infected with mycobacterium or have been vaccinated with a mycobacterium vaccine.

A nucleic acid isothermal amplification method is based on a polymerase spiral reaction using only one pair of primers. The method employs a self-spiraling amplification method, and has a high amplification efficiency.