The present disclosure provides therapeutic agents and uses thereof for drugs for treatment of tumors and/or cancers. The active ingredients of the therapeutic agents comprise an oncolytic virus that selectively replicate in tumor cells and comprise NK cells.

Aspects of the invention concern a composition or a kit-of-parts comprising i) a virus which is a member of the Reoviridae family and ii) sialic acid and/or a molecule comprising at least one sialic acid moiety, as well therapeutic applications thereof.

Aspects of the invention concern a composition or a kit-of-parts comprising i) a virus which is a member of the Reoviridae family and ii) sialic acid and/or a molecule comprising at least one sialic acid moiety, as well therapeutic applications thereof.

Aspects of the invention concern a composition or a kit-of-parts comprising i) a virus which is a member of the Reoviridae family and ii) sialic acid and/or a molecule comprising at least one sialic acid moiety, as well therapeutic applications thereof.

Provided herein are methods of treating cancer in a subject. The methods include administering to the subject one or more doses of an oncolytic virus (e.g., in an initial round of treatment); selecting a subject with a T-cell population exhibiting high peripheral clonality; and administering to the subject with a T-cell population exhibiting high peripheral clonality a one or more subsequent doses of the oncolytic virus (e.g., in a second round of treatment).

Provided herein are methods of treating cancer in a subject. The methods include administering to the subject one or more doses of an oncolytic virus (e.g., in an initial round of treatment); selecting a subject with a T-cell population exhibiting high peripheral clonality; and administering to the subject with a T-cell population exhibiting high peripheral clonality a one or more subsequent doses of the oncolytic virus (e.g., in a second round of treatment).

Provided herein are methods of treating cancer in a subject. The methods include administering to the subject one or more doses of an oncolytic virus (e.g., in an initial round of treatment); selecting a subject with a T-cell population exhibiting high peripheral clonality; and administering to the subject with a T-cell population exhibiting high peripheral clonality a one or more subsequent doses of the oncolytic virus (e.g., in a second round of treatment).

Oncolytic viruses offer an in situ vaccination approach to activate tumor-specific T cell responses. However, the upregulation of PD-L1 expression on tumor cells and immune cells leads to tumor resistance to oncolytic immunotherapy. Herein, we generate an engineered oncolytic virus that coexpresses a PD-L1 inhibitor and GM-CSF. This oncolytic virus is capable of secreting the PD-L1 inhibitor that systemically binds and inhibits PD-L1 on tumor cells and immune cells. The intratumoral injection with the oncolytic virus overcomes PD-L1-mediated immunosuppression during both the priming and effector phases, provokes systemic T cell responses against dominant and subdominant neoantigen epitopes derived from mutations, and leads to an effective rejection of both virus-injected and distant tumors. This engineered oncolytic virus allows for activation of tumor neoantigen-specific T cell responses, providing a potent, individual tumor-specific oncolytic immunotherapy for cancer patients, especially those resistant to PD-1/PD-L1 blockade therapy.

Methods for the preparation of polymeric films which encase and preserve bioactive agents. In particular, the invention is directed to the preparation of oral thin films containing bioactive proteins or viruses. For example, methods and compositions are disclosed for preservation of rotavirus and antibodies in thin dry films.

The disclosure provides a pharmaceutical composition for use in treating fibrosis comprising a reovirus as an active ingredient.