Synthetic antimicrobial peptides, compositions comprising thereof, and methods of use for modulating one or more symptoms of an infection in a subject are disclosed. In some aspects, the infection is caused by mycobacteria, for example, a nontuberculous mycobacterium such as Mycobacterium abscessus. In other aspects, the infection is caused by Escherichia coli, Pseudomonas aeruginosa, or methicillin-resistant Staphylococcus aureus (MRSA). Also disclosed are methods of identifying synthetic antimicrobial peptides against a pathogen with no known effective treatment using a library of synthetic peptides.

Compositions for topical treatment to reduce the appearance of the hyperpigmented lesions of melasma are presented. Such compositions include defensins in concentrations that are below those that exhibit antimicrobial activity, and can be in the form of a topically applied gel, lotion, wash, shampoo, cream, or mask. Various formulations for such compositions, which can include various pharmaceutically acceptable stabilizers, emollients, and fragrances, are provided.

The method of encapsulating an active protein includes (a) establishing a primary mesenchymal cell culture; (b) maintaining the cell culture until the culture surface is fully covered by the cultured cells; (c) obtaining a culture fluid from the cultured cells; (d) purifying the culture fluid from cell debris and suspended cells; (e) transferring the upper liquid phase to a new vessel; (f) gently mixing the purified liquid phase with an aqueous solution of polyvinyl alcohol; (g) adding ethyl alcohol to the mixture while stirring continuously; and (h) depositing the material on the collector surface by electro spinning or electrospraying. The invention includes an antibacterial composition containing an active protein and a polymer and ethyl alcohol. The active protein is a fibrous, fully water-soluble material containing proteins released by mesenchymal cells, including cathelicidin.

A method of treating a sterile inflammatory condition in a subject using an isolated dermcidin peptide or an active fragment thereof of or an active analog thereof is provided. Also provided is a method of inhibiting organ transplantation-associated ischemia/reperfusion and/or organ transplantation-associated inflammation.

The present disclosure provides compositions (e.g., pyrimidines) and methods capable of potentiating the effects of antimicrobial agents and/or antiviral agents against bacterial infections and/or viral infections, respectively. Methods of sensitizing bacteria to antimicrobial agents and/or antiviral agents, as well as pharmaceutical compositions and therapeutic/prophylactic methods directed at microbial infections and/or viral infections are also provided.

A method of treating or preventing a microbial infection in a patient is provided, along with a wound irrigation system and a composition in the form of an irrigation liquid for reducing microbial load or preventing microbial infection in a wound.

The present invention relates to methods for treatment or prevention of asthma, mild intermittent asthma, mild persistent asthma, moderate persistent asthma, severe persistent asthma, eosinophilic asthma, neutrophilic asthma, steroid refractory asthma, status asthmaticus, pneumonia, bronchiectasis, COPD, sarcoidosis, and lung cancer based on reducing airway hyper responsiveness, increasing pulmonary compliance, reducing lung inflammation, reducing inflammatory cell count in bronchoalveolar fluid and reducing cytokine production by administration of a mammalian α- and/or β-defensin.

The present invention relates to new peptides the amino acid sequences of which are derived from HD-5, for use in the treatment and/or prevention of Herpesviridae infections, in particular for treating and/or preventing a Betaherpesviridae infection, such as a HCMV-infection.

Peptide compounds and compositions containing the peptide compounds and methods for treating various infections, wounds, and skin conditions such as atopic dermatitis. Examples of wounds that may be treated include surface wounds such as lacerations, abrasions, avulsions, incisions, and amputations, pressure sores, bed sores, wounds due to peripheral vascular disease, post-surgical wounds, diabetic ulcers and wounds, burns, ocular wounds and abrasions, ocular ulcers, and treatment of inflammatory conditions such as dry eye. The peptide compounds and compositions may be used as treatments to enhance acceptance of grafts such as skin grafts and organ grafts.

Peptide compounds and compositions containing the peptide compounds and methods for treating various infections, wounds, and skin conditions such as atopic dermatitis. Examples of wounds that may be treated include surface wounds such as lacerations, abrasions, avulsions, incisions, and amputations, pressure sores, bed sores, wounds due to peripheral vascular disease, post-surgical wounds, diabetic ulcers and wounds, burns, ocular wounds and abrasions, ocular ulcers, and treatment of inflammatory conditions such as dry eye. The peptide compounds and compositions may be used as treatments to enhance acceptance of grafts such as skin grafts and organ grafts.