Provided is a polypeptide containing the amino acid sequence as shown in SEQ ID NO. 1, and the present invention belongs to the field of biomedicine. The polypeptide can inhibit the infection with novel coronavirus 2019-nCoV (SARS-CoV-2) and SARS-like viruses, and can thus provide good candidate drugs for the prevention and treatment of 2019-nCoV and SARS-like viruses which may break out in the future. Further provided is a polypeptide derivative having palmic acid or cholesterol modifications.

This disclosure is directed to agonists of the apelin receptor (APJ) and uses of such agonists.

This disclosure is directed to agonists of the apelin receptor (APJ) and uses of such agonists.

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.

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.

Disclosed herein are new antiviral compounds, together with pharmaceutical compositions that include one or more antiviral compounds, and methods of synthesizing the same. Also disclosed herein are methods of ameliorating and/or treating a paramyxovirus viral infection with one or more small molecule compounds. Examples of paramyxovirus infection include an infection caused by human respiratory syncytial virus (RSV).

Disclosed herein are new antiviral compounds, together with pharmaceutical compositions that include one or more antiviral compounds, and methods of synthesizing the same. Also disclosed herein are methods of ameliorating and/or treating a paramyxovirus viral infection with one or more small molecule compounds. Examples of paramyxovirus infection include an infection caused by human respiratory syncytial virus (RSV).

Small molecule activators of interferon regulatory factor (IRF), such as IRF3, and methods of use are provided. In particular, compositions and methods for upregulating interferon regulatory factor 3 (IRF3) activity, such as in the brain following stroke to provide potent protection against ischemic brain injury, to improve a therapeutic time window for providing treatments to stroke patients and/or for enhancement of vaccine platforms are disclosed.

Small molecule activators of interferon regulatory factor (IRF), such as IRF3, and methods of use are provided. In particular, compositions and methods for upregulating interferon regulatory factor 3 (IRF3) activity, such as in the brain following stroke to provide potent protection against ischemic brain injury, to improve a therapeutic time window for providing treatments to stroke patients and/or for enhancement of vaccine platforms are disclosed.

Compounds of formulae (I) and (II), compositions, and methods for use in inhibiting the E3 enzyme Cbl-b in the ubiquitin proteasome pathway are disclosed. The compounds, compositions, and methods can be used to modulate the immune system, to treat diseases amenable to immune system modulation, and for treatment of cells in vivo, in vitro, or ex vivo.

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