Abstract: The present disclosure provides isolated monoclonal antibodies or an antigen-binding portion thereof that specifically bind to CD40 preferably human CD40 with high affinity, and that function as CD40 agonists. The disclosed invention also relates to antibodies that are chimeric, humanized, bispecific, derivatized, single chain antibodies or portions of fusion proteins. Nucleic acid molecules encoding the antibodies of the disclosed invention, hybridoma, and methods for expressing the antibodies of the disclosed invention are also provided. Pharmaceutical compositions comprising the antibodies of the disclosed invention are also provided. This disclosure also provides methods for regulating humoral and cellular immune responses, as well as methods for treating cancer using an anti-CD40 agonist antibody of the disclosed invention.

Abstract: An isolated bispecific antibody or antigen-binding portion thereof includes a first chain which specifically binds to human PD-1(hPD-1) and blocks the interaction between hPD-1 and PD-L1, and a second chain which specifically binds to human CD47 and inhibits its interaction with SIRP-alpha, where the first chain and the second chain are coupled in a knob-in-hole format through their respective CH3 domain.

Abstract: The present disclosure provides isolated monoclonal antibodies or antigen-binding portions thereof that specifically bind to CD47 preferably human CD47 with high affinity, and can enhance tumor-targeting immune response by therapeutically boosting the phagocytic function of macrophage for cancer treatment. The disclosure also provides antibodies that are chimeric, humanized, bispecific, derivatized, single chain antibodies or portions of fusion proteins. Nucleic acid molecules encoding the antibodies of the disclosed invention and hybridoma are also provided. Pharmaceutical compositions comprising the antibodies of the disclosed invention are also provided. This disclosure also provides methods for regulating innate immune responses, as well as methods for treating cancer using an anti-CD47 antagonist antibody of the disclosed invention.

Abstract: The present disclosure provides isolated monoclonal antibodies or an antigen-binding portion thereof that specifically bind to CD40 preferably human CD40 with high affinity, and that function as CD40 agonists. The disclosed invention also relates to antibodies that are chimeric, humanized, bispecific, derivatized, single chain antibodies or portions of fusion proteins. Nucleic acid molecules encoding the antibodies of the disclosed invention, hybridoma, and methods for expressing the antibodies of the disclosed invention are also provided. Pharmaceutical compositions comprising the antibodies of the disclosed invention are also provided. This disclosure also provides methods for regulating humoral and cellular immune responses, as well as methods for treating cancer using an anti-CD40 agonist antibody of the disclosed invention.

Abstract: The present disclosure provides isolated monoclonal antibodies or an antigen-binding portion thereof that specifically bind to CD40 preferably human CD40 with high affinity, and that function as CD40 agonists. The disclosed invention also relates to antibodies that are chimeric, humanized, bispecific, derivatized, single chain antibodies or portions of fusion proteins. Nucleic acid molecules encoding the antibodies of the disclosed invention, hybridoma, and methods for expressing the antibodies of the disclosed invention are also provided. Pharmaceutical compositions comprising the antibodies of the disclosed invention are also provided. This disclosure also provides methods for regulating humoral and cellular immune responses, as well as methods for treating cancer using an anti-CD40 agonist antibody of the disclosed invention.