Abstract: Provided herein are nucleic acid molecules encoding viral replication proteins and antigenic coronavirus proteins or fragments thereof. Also provided herein are compositions that include nucleic acid molecules encoding viral replication and antigenic proteins, and lipids. Nucleic acid molecules provided herein are useful for inducing immune responses.

Abstract: The present disclosure describes compounds of Formula (I) and pharmaceutically acceptable salts thereof:

Abstract: Provided herein are nucleic acid molecules encoding viral replication proteins and antigenic coronavirus proteins or fragments thereof. Also provided herein are compositions that include nucleic acid molecules encoding viral replication and antigenic proteins, and lipids. Nucleic acid molecules provided herein are useful for inducing immune responses.

Abstract: Provided herein are RNA molecules encoding viral replication proteins and antigenic proteins or fragments thereof. Also provided herein are compositions that include RNA molecules encoding viral replication proteins and antigenic proteins or fragments thereof, and lipids. RNA molecules and compositions including them are useful for inducing immune responses.

Abstract: Lipid formulations that encapsulate messenger RNA (mRNA) are provided herein. The mRNA can be used to express CFTR protein in vitro or in vivo. The lipid formulations can be administered via inhalation to treat cystic fibrosis.

Abstract: The present disclosure describes compounds of Formula (I) or a pharmaceutically acceptable salt thereof: wherein: R1 and R2 are each independently (CH3(CH2)m)2CH—, (CH3(CH2)m)(CH3(CH2)m-1)CH, (CH3(CH2)m)(CH3(CH2)m-2)CH, (CH3(CH2)m)2CHCH2—, or (CH3(CH2)m)(CH3(CH2)m-1)CHCH2—, wherein m is 4-11; L1 and L2 are each independently absent, a linear C1-5 alkylene, or (CH2)p—O—(CH2)q, wherein p and q are each independently 1-3; R3 is a linear C2-5 alkylene optionally substituted with one or two methyl groups; R4 and R5 are each independently H or C1-6 alkyl; X is O or S; and n is 0-2.

Abstract: Peptides and Peptide-lipid conjugates are provided in which the peptide has the general Formula (I) wherein, A1 is selected from serine, threonine, O—C1-6 alkyl serine, and O—C1-6 alkyl threonine; A2 is selected from serine, threonine, O—C1-6 alkyl serine, and O—C1-6 alkyl threonine; A3 is selected from glutamic acid, glutamine, asparagine, and aspartic acid; A4 is proline; each A5 is independently selected from a natural or modified amino acid; The peptide-lipid conjugates can be used in lipid formulations for the delivery of nucleic acids.

Abstract: A lipid composition containing a nucleic acid, wherein the lipid composition comprises a peptide-lipid conjugate, is provided. The peptide of the peptide-lipid conjugates can be from 4 to 52 amino acids in length. Methods of using the lipid composition in the in vivo delivery of nucleic acids are further provided.

Abstract: Methods of preparing lyophilized lipid nanoparticle-nucleic acid compositions are provided. The methods comprise preparing a suspension of lipid nanoparticles with a monosaccharide and one or more excipients selected from thiosulfate, potassium sorbate, sodium benzoate, and iodixanol. Lyophilized lipid nanoparticle-nucleic acid compositions and methods of reconstituting and administering the same are further provided.

Abstract: Nucleotides encoding a Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) protein are provided herein. Also describe are mRNA constructs that can be used to express CFTR protein in vitro or in vivo. The mRNA constructs can be formulated in a lipid formulation and administered via inhalation to treat cystic fibrosis.

Abstract: Provided herein are nucleic acid molecules encoding viral replication proteins and antigenic coronavirus proteins or fragments thereof. Also provided herein are compositions that include nucleic acid molecules encoding viral replication and antigenic proteins, and lipids. Nucleic acid molecules provided herein are useful for inducing immune responses.