A prophylactic and/or therapeutic food composition for control of bacterial and/or fungal infection in bees and/or bee larvae, and methods of using and making the same. Bee feed compositions comprising bacterial and/or fungal antibodies dispersed in an edible base composition. Use of bacterial and/or fungal antigenic agents to passively generate bacterial and/or fungal antibodies in chicken egg yolks, and use of such bacterial and/or fungal antibodies for prophylaxis or treatment of bacterial and/or fungal infection in the bees and/or larvae.

Described herein are antigen-binding molecules that bind to bacteria (e.g., Listeria monocytogenes) and methods of use thereof. Also described herein are compositions and kits comprising these antigen-binding molecules.

The present invention provides a construction method and application of a live-attenuated Listeria monocytogenes, in which a wild-type strain of Listeria monocytogenes EGD-e is used as construction parental strains, and the residues N478 and V479 of LLO are respectively mutated into plasmid free alanine. The live-attenuated strain of Listeria monocytogenes in the present invention can be used as a live vaccine vector and an immunologic adjuvant.

Methods and compositions useful in treating neurodegenerative disorders are based on septapeptides and extended forms thereof (or portions thereof) that exhibit chemokine activity with respect to microglial cell precursors.

Methods and compositions useful in treating neurodegenerative disorders are based on septapeptides and extended forms thereof (or portions thereof) that exhibit chemokine activity with respect to microglial cell precursors.

Disclosed are methods of modulating antibody function, in particular, via modifying one or more terminal sialic acid residues of an antibody. In certain aspects, the antibody may be an IgG antibody, wherein one or more terminal sialic acid residues is modified to modulate the antibody function. Further disclosed are methods of using such modified antibodies, and compositions comprising modified antibodies.

The present invention relates to compositions comprising a recombinant attenuated Listeria strain expressing a truncated ActA and fusion proteins thereof and methods of using the same for inducing anti-disease immune responses, and treatment of the same, including a tumor growth or cancer. In particular, the invention relates to the treatment of a tumor growth or cancer using a live attenuated recombinant Listeria strain that expresses a fusion protein of a truncated ActA fused to an antigen.

A hybridoma cell line secreting an ActA monoclonal antibody and a use thereof. The hybridoma cell line was deposited on Jul. 8, 2021, at the China Center for Type Culture Collection (CCTCC) with the depository accession number of CCTCC NO: C2021174. The present invention also discloses the ActA monoclonal antibody secreted by this hybridoma cell line or its progeny cell line, a detection kit containing this ActA monoclonal antibody, immunomagnetic beads, the preparation method and use of immunomagnetic beads, and competitive ELISA and indirect ELISA detection methods. The ActA monoclonal antibody of the present invention has the advantages of high titer, good specificity, and strong affinity with the natural antigen. The Listeria competitive ELISA detection kit and immunomagnetic beads developed based on this antibody have high sensitivity and good stability, effectively monitoring the level of ActA antibodies in clinical serum samples, and can be used for labeling Listeria monocytogenes.

The present invention provides a method for increasing the efficacy of an anticancer therapy by administering to a subject in need thereof at least one compound that at least partially blocks the activity of a bacterial DnaK, and pharmaceutical compositions comprising the same.

A hybridoma cell line secreting an ActA monoclonal antibody and a use thereof. The hybridoma cell line was deposited on Jul. 8, 2021, at the China Center for Type Culture Collection (CCTCC) with the depository accession number of CCTCC NO: C2021174. The present invention also discloses the ActA monoclonal antibody secreted by this hybridoma cell line or its progeny cell line, a detection kit containing this ActA monoclonal antibody, immunomagnetic beads, the preparation method and use of immunomagnetic beads, and competitive ELISA and indirect ELISA detection methods. The ActA monoclonal antibody of the present invention has the advantages of high titer, good specificity, and strong affinity with the natural antigen. The Listeria competitive ELISA detection kit and immunomagnetic beads developed based on this antibody have high sensitivity and good stability, effectively monitoring the level of ActA antibodies in clinical serum samples, and can be used for labeling Listeria monocytogenes.