The present disclosure provides conjugates comprising a binding moiety and an immunomodulatory imide compound, e.g., substituted isoindoline compound, wherein the immunomodulatory imide compound is conjugated to a binding moiety via an optional linker. Also provided are compositions comprising the conjugates. The conjugates and compositions are useful for treating a disease or condition, e.g., cancer, in a subject in need thereof.

The present invention is directed to a pharmaceutical composition including (e.g. for use as an adjuvant) a polymeric carrier cargo complex, comprising as a carrier a polymeric carrier formed by disulfide-crosslinked cationic components; and as a cargo at least one nucleic acid molecule, and at least one antigen that is selected from an antigen from a pathogen associated with infectious disease; an antigen associated with allergy or allergic disease; an antigen associated with autoimmune disease; or an antigen associated with a cancer or tumour disease, or in each case a fragment, variant and/or derivative of said antigen. The pharmaceutical composition allows for efficient induction of an adaptive immune response directed against said antigen. The present invention furthermore provides kits, as well as the use of the pharmaceutical composition or the kit as a vaccine, particularly in the treatment of infectious diseases, allergies, autoimmune diseases and tumour or cancer diseases.

A composition for treating and/or preventing Hepatitis B virus infection and Hepatitis B virus infection mediated diseases and the method thereof are provided. In some embodiments, the composition includes a polyriboinosinic acid-polyribocytidylic acid (PIC), at least one antibiotic or polyamide compound, at least one positive ion, and Hepatitis B virus surface antigen. In some embodiments, the composition includes PIC, at least one antibiotic or polyamide compound, at least one positive ion, Hepatitis B virus surface antigen and Hepatitis B virus core antigen. The present disclosure also relates to a method of treating and/or preventing Hepatitis B virus infection, particularly for treating chronic HBV infection.

To develop a universal and long-lasting influenza or other pathogens vaccine has been a mission impossible goal in the life science and health field. Applicants disclose, herein, vaccines prepared against SARS-COV-2, an influenza A strain vaccine prepared from a 1934 influenza virus (A/PR/8/34 H1N1, Puerto Roca, 1934), and an influenza B strain vaccine prepared from a 1940 influenza virus. The disclosed vaccine induces production of broadly neutralizing antibodies in mice. The presently disclosed vaccine is able to inhibit two other influenza A strains: a 2009 influenza H1N1 virus collected from Los Angeles (A/California/07/2009) and a 2014 influenza H3N2 virus collected from Hong Kong (A/Hongkong/4801/2014). Applicants also describe an influenza B strain vaccine prepared from a B strain virus from a 1940 patient in USA (B/L11/40). The B strain vaccine also produced broadly neutralizing antibodies, in this case against a B strain from Colorado 2017 (B/Colorado/2017). Applicant's methods and compositions are not only useful in creating influenza vaccines with broad activity against other influenza subtypes but also be efficient to generate long-lasting SARS-CoV-2 vaccines against emerging new variants either through recombined protein antigens from SARS-CoV-2 or inactivated SARS-CoV-2 virus.

Disclosed herein relates to immunotherapeutic compositions comprising immunotherapeutic peptides comprising neoepitopes, polynucleotides encoding the immunotherapeutic peptides, antigen presenting cells comprising the immunotherapeutic peptides or polynucleotides, or T cell receptors specific for the neoepitopes. Also disclosed herein is use of the immunotherapeutic compositions.

The present invention in particular relates to a method of producing an immunogenic composition exhibiting reduced virucidal activity, as well as to the immunogenic composition and uses thereof, wherein the method in particular comprises the steps of: (a) providing a mixture with a first liquid and a recombinant protein, (b) concentrating the recombinant protein in the mixture by removing a portion of the first liquid from the mixture, and (c) processing the solution resulting from step (b) by continuous diafiltration.

The invention disclosed herein are embodiments of compounds capable of treating a viral infection. For example, the compounds are capable of inhibiting viral downmodulation of major histocompatibility complex I (MHC-I), such as by acting as immunomodulators of the immune system to treat, cure or eradicate a viral infection (e.g., HIV infection). More particularly, the present disclosure relates to the use of a heteroaryl compound or salts or analogs thereof, in the treatment of patients infected with a virus. The disclosed compounds may be used alone or in combination with other pharmacologically active agents to treat, cure or eradicate the virus, particularly in patients with persistent, latent viral infection. In some embodiments, the disclosed compounds can be used alone or in combination with other pharmacologically active agents to promote reactivation of viral production in latent cells and eradication of such cells.

Provided are a vaccine adjuvant composition including, as an active ingredient, bavachin capable of improving antibody titer and enhancing cellular immunity and humoral immunity when administered together with an antigen, a vaccine preparation including the bavachin and an antigen, a method of promoting an immune response, the method including the step of administering the vaccine adjuvant composition to a subject together with a vaccine composition or before and after administration of the vaccine composition, and a vaccine adjuvant composition for promoting an immune response, the vaccine adjuvant composition including the bavachin. Since the vaccine adjuvant composition of the present invention includes bavachin isolated from an extract of Psoralea corylifolia, of which safety has been secured, it may exhibit safety and may enhance both the humoral and cellular immune responses as well as the titer of antibodies generated by antigens.

The invention relates to an immunogenic or vaccine composition against the 2019 novel coronavirus (SARS-CoV-2), comprising a nucleic acid construct encoding a SARS-CoV-2 coronavirus Spike (S) protein antigen or a fragment thereof comprising the receptor-binding domain, wherein the nucleic acid construct sequence is codon-optimized for expression in human.

The present application relates to method of vaccinating a subject against infection by an enveloped virus. The method includes providing a compound of the Formula (I) as described herein, and contacting the compound of Formula (I) with an isolated enveloped virus, having a membrane, to inactivate the membrane of the isolated enveloped virus. The subject is then treated with the enveloped virus having an inactivated membrane to vaccinate the subject against the enveloped virus. Further disclosed is an ex vivo vaccine composition including the compound of Formula (I) and an enveloped virus.