Abstract: Disclosed herein are novel methods and compositions for targeting drug delivery systems to specific cells. One aspect relates to a drug delivery system comprising an elastin-like peptide (ELP) component and a ligand selected from the group consisting of an polymeric immunoglobulin receptor binding site in the C?3 domain of dimeric human IgA (mIgA) and knob capable of either drug encapsulation or drug attachment. Further aspects relate to drug delivery systems comprising an elastin-like peptide (ELP) component and a ligand; wherein the ligand specifically binds to a receptor selected from the group consisting of coxsackievirus and adenovirus receptor (CAR) and polymeric immunoglobulin receptor (pIgR). Further aspects include the novel transcytosing properties of the elastin-like peptide and the ligand, knob. Also provided are methods and pharmaceutical compositions comprising the disclosed therapeutics.

Abstract: Disclosed herein are novel methods and compositions for targeting drug delivery systems to specific cells. One aspect relates to a drug delivery system comprising an elastin-like peptide (ELP) component and a ligand selected from the group consisting of mIgA and knob capable of either drug encapsulation or drug attachment. Further aspects relate to drug delivery systems comprising an elastin-like peptide (ELP) component and a ligand; wherein the ligand specifically binds to a receptor selected from the group consisting of CAR and pIgR. Further aspects include the novel transcytosing properties of the elastin-like peptide and the ligand, knob. Also provided are methods and pharmaceutical compositions comprising the disclosed therapeutics.

Abstract: Provided herein are therapeutic agents comprising an elastin-like peptide (ELP) component and a ligand that specifically targets and binds an ICAM-1 receptor. In one aspect, the ELP comprises, or alternatively consists essentially of, or yet further consists of one or more sequence(s) designated S48I48 and/or mICMA-1 SI and/or hICAM-1 S1 or biological equivalents thereof. In a further aspect, the ELP/ligand composition further comprises a therapeutic agent. In one aspect, the therapeutic agent is specific to the treatment or amelioration of symptoms associated with autoimmune disorders such as SjS.

Abstract: Disclosed herein are novel methods and compositions for targeting drug delivery systems to specific cells. One aspect relates to a drug delivery system comprising an elastin-like peptide (ELP) component and a ligand selected from the group consisting of mIgA and knob capable of either drug encapsulation or drug attachment. Further aspects relate to drug delivery systems comprising an elastin-like peptide (ELP) component and a ligand; wherein the ligand specifically binds to a receptor selected from the group consisting of CAR and pIgR. Further aspects include the novel transcytosing properties of the elastin-like peptide and the ligand, knob. Also provided are methods and pharmaceutical compositions comprising the disclosed therapeutics.

Abstract: Provided herein are therapeutic agents comprising an elastin-like peptide (ELP) component and a ligand that specifically targets and binds an ICAM-1 receptor. In one aspect, the ELP comprises, or alternatively consists essentially of, or yet further consists of one or more sequence(s) designated S48I48 and/or mICMA-1 SI and/or hICAM-1 S1 or biological equivalents thereof. In a further aspect, the ELP/ligand composition further comprises a therapeutic agent. In one aspect, the therapeutic agent is specific to the treatment or amelioration of symptoms associated with autoimmune disorders such as SjS.