Leidos, Inc.

Timothy W Phares

James Pannucci

Gabriel M Gutierrez

Vinayaka Kotraiah

Marc Mansour

Cecille D Browne

Michael Ryan Weil

Cecilie D Browne

Peter J Buontempo

This disclosure provides peptides which have a strong affinity for the checkpoint receptor 'programmed death 1' (PD-1). These peptides block the interaction of PD-1 with its ligand PD-L1 as well as the interaction of CTLA4 with CD86 and can therefore be used for various therapeutic purposes, such as inhibiting the progression of a hyperproliferative disorder, including cancer; treating infectious diseases; enhancing a response to vaccination; treating sepsis; and promoting hair re-pigmentation or lightening of pigmented skin lesions.

PD-1 and CTLA-4 dual inhibitor peptides

This disclosure provides nucleic acids encoding peptides which bind to LAG3 and can be used to block the interaction of LAG 3 with other molecules such as MHC-II, FGL1, and α-synuclein. These peptides can be used for various therapeutic purposes, such as inhibiting the progression of a hyperproliferative disorder, including cancer, or inhibiting the progression of a synucleinopathy, inhibiting the progression of sepsis, inhibiting the progression of an infectious disease, and enhancing a response to a vaccine.

LAG3 binding peptides

This disclosure provides peptides which can therefore be used for various therapeutic purposes, such as inhibiting the progression of a hyperproliferative disorder, including cancer; treating infectious diseases; enhancing a response to vaccination; treating sepsis; and promoting hair re-pigmentation or lightening of pigmented skin lesions.

Immunomodulatory peptides

This disclosure provides peptides that bind to LAG3 and can be used to block its interaction with other molecules such as MHC-II, FGL1, and &#x3b1;-synuclein. These peptides, with their demonstrated activity and short half-life, can be used to activate cellular immunity while significantly reducing the potential for adverse events that is often associated with the antibody-based checkpoint inhibitors. The peptides can be used as stand-alone therapeutics or can be used as immune modulators in combination with other therapies.

This disclosure provides peptides which bind to LAG3, such as SAPWEPLHWPEDWWQGTGEW (SEQ ID NO:1), and can be used to block the interaction of LAG 3 with other molecules such as MHC-II, FGL1, and &#x3b1;-synuclein. These peptides can be used for various therapeutic purposes, such as inhibiting the progression of a hyperproliferative disorder, including cancer, or inhibiting the progression of a synucleinopathy, inhibiting the progression of sepsis, inhibiting the progression of an infectious disease, and enhancing a response to a vaccine.

This disclosure provides peptide conjugates that are useful for inhibiting the progression of a hyperproliferative disorder, inhibiting the progression of sepsis, inhibiting the progression of an infectious disease, enhancing a response to a vaccine, or inhibiting the progression of a synucleinopathy.

Growing community of inventors

Reston, VA, United States of America

Timothy W Phares