The present disclosure relates to methods and compositions comprising derivatized-chitosan polyplexes reversibly coated with a polyanion-containing block co-polymer for the localized expression of IL-12 in mucosal tissues, preferably in combination with an IFN-1 activator/inducer, for use in cancer immunotherapy.

As a system that enables effective delivery of a pharmaceutical active ingredient to a submucosal tissue of the bladder, a transmucosal delivery system including a conjugate of a hydrophobic compound containing the pharmaceutical active ingredient and chondroitin sulfate is provided.

As a system that enables effective delivery of a pharmaceutical active ingredient to a submucosal tissue of the bladder, a transmucosal delivery system including a conjugate of a hydrophobic compound containing the pharmaceutical active ingredient and chondroitin sulfate is provided.

Embodiments disclosed herein relates to ganglioside GM3-containing mixed lipids nanoparticles having an overall size between 60-100 nm, the making thereof and the uses. The nanoparticles selectively targeted to CD169+ expressing cells such as dendritic cells and macrophage. The nanoparticles are endocytosed by the CD169+ expressing cells.

Embodiments disclosed herein relates to ganglioside GM3-containing mixed lipids nanoparticles having an overall size between 60-100 nm, the making thereof and the uses. The nanoparticles selectively targeted to CD169+ expressing cells such as dendritic cells and macrophage. The nanoparticles are endocytosed by the CD169+ expressing cells.

Disclosed are methods and compositions for repolarizing a tumor associated macrophage (TAM) from M2 to M1 comprising administering to a subject in need thereof an effective dose of a compound comprising a dextran backbone and one or more CD206 targeting moieties conjugated thereto. In certain aspects, the compound further comprises a therapeutic agent selected from: paclitaxel, gemcitabine, lapatinib, and doxorubicin. In further aspect, the therapeutic agent comprises a chelator and at least one metal ion. In certain implementations, the at least one metal ion comprises at least one Cu(II) ions.

Disclosed are methods and compositions for repolarizing a tumor associated macrophage (TAM) from M2 to M1 comprising administering to a subject in need thereof an effective dose of a compound comprising a dextran backbone and one or more CD206 targeting moieties conjugated thereto. In certain aspects, the compound further comprises a therapeutic agent selected from: paclitaxel, gemcitabine, lapatinib, and doxorubicin. In further aspect, the therapeutic agent comprises a chelator and at least one metal ion. In certain implementations, the at least one metal ion comprises at least one Cu(II) ions.

The present invention provides an oligodeoxynucleotide which comprises a CpG oligodeoxynucleotide comprising a nucleotide sequence represented by formula (1):

5′X-CpG-L-CpG-TZ3′  (I) wherein X is T or C, L is a nucleotide sequence consisting of 1 to 7 bases, and Z is T or C, and consisting of 8 to 16 bases, and
a polydeoxyadenylic acid having a length capable of forming a complex with a β-1,3-glucan,
wherein the polydeoxyadenylic acid is linked to the 3′ side of the CpG oligodeoxynucleotide.

In addition, the present invention provides a complex containing said oligodeoxynucleotide and a β-1,3-glucan.

The present invention provides an oligodeoxynucleotide which comprises a CpG oligodeoxynucleotide comprising a nucleotide sequence represented by formula (1):

5′X-CpG-L-CpG-TZ3′  (I) wherein X is T or C, L is a nucleotide sequence consisting of 1 to 7 bases, and Z is T or C, and consisting of 8 to 16 bases, and
a polydeoxyadenylic acid having a length capable of forming a complex with a β-1,3-glucan,
wherein the polydeoxyadenylic acid is linked to the 3′ side of the CpG oligodeoxynucleotide.

In addition, the present invention provides a complex containing said oligodeoxynucleotide and a β-1,3-glucan.

A compound that includes a dextran backbone having at least one C-type lectin targeting moieties attached thereto. Also disclosed are embodiments of the compound that include at least one therapeutic agent and/or at least one detection label attached to the dextran backbone. The compound may be effective for treatment of Corona Covid-19 (SARS-covid-2) virus, its variants and other related viral diseases, and disorders. Further disclosed are methods for diagnosing and treating diseases and/or disorders directly using the disclosed compounds.