The only human cathelicidin antimicrobial peptide, playing key roles in innate immune defense, wound healing, and modulation of inflammatory responses.
The host-defense peptide cathelicidin LL37 is an innate immune defense peptide with broad-spectrum antimicrobial effects. Experiments showed that the antimicrobial activity of LL37(17-29), the active core of LL37, was associated with peptide aggregat…
INTRODUCTION: Urinary catheterization frequently causes urinary tract infections and patient discomfort. While hydrogel coatings combining antibacterial and hydrophilic properties offer a potential solution, challenges such as uncontrolled antimicrob…
Sterile inflammation, resulting from hepatocyte death and subsequent release of damage-associated molecular patterns (DAMPs), significantly contributes to liver disease pathogenesis. Neutrophils, as primary responders to liver injury, undergo NETosis…
INTRODUCTION: Antimicrobial peptides (AMPs) hold promises to counter antimicrobial resistance. They cause several deleterious effects in bacterial cells by interfering with cell wall biosynthesis, DNA replication, transcription, and translation. OBJE…
Mesenchymal stem cells (MSCs) have emerged as promising alternatives to fight drug-resistant bacterial infections. This study investigates the antibacterial activity of palatal adipose tissue-derived MSCs (PMSCs), particularly when cultured within a…
INTRODUCTION: Periodontitis is a plaque-induced condition that causes irreparable damage to the supporting tissues of the teeth, and tobacco smoking is a recognized exacerbating and risk factor. Antibiotic-resistant bacteria are a consequence of anti…
The double cooperative effect between two major antimicrobial peptides, LL-37 and HNP1, where their combination enhances antimicrobial efficiency while reducing cytotoxicity, offers a promising strategy for developing safer and more effective antibio…
OBJECTIVE: This study aimed to elucidate the molecular mechanisms through which CXCL2 contributes to the pathogenesis of idiopathic interstitial pneumonia (IIP). METHODS: Neutrophils were isolated, and the formation of neutrophil extracellular traps…
Rosacea is a chronic inflammatory skin condition marked by excessive M1 macrophage polarization and angiogenesis, resulting in erythema and tissue inflammation. Despite available treatments, many patients experience recurrent flare-ups. This study ex…
The escalating global threat of antimicrobial resistance (AMR) and chronic biofilm-associated infections underscores the urgent need for novel therapeutic agents. Antimicrobial peptides (AMPs) offer a promising alternative due to their potent activit…
INTRODUCTION: Activated polymorphonuclear neutrophils (PMN) release neutrophil extracellular traps (NETs) composed of a web-like DNA core, concomitant with nuclear histones, granular peptides and enzymes. NETs in human urine and their potential role…
Dynamic changes in lipid membrane composition are a common response to stress, often involving shifts in key lipid molecules. Phosphatidic acid (PA), a central precursor in lipid biosynthesis, accumulates when anionic phospholipid synthesis is blocke…
TLR-targeted immunotherapy represents a promising strategy for combating infectious diseases by initiating or enhancing protective antimicrobial immunity. Here, we identified the first frog-derived TLR2 and TLR4 agonist, Cathelicidin-Ka (Cath-Ka), fr…
BACKGROUND: Pneumonia remains a leading cause of morbidity and mortality among children globally, especially in low- and middle-income countries, where poor nutrition and limited access to healthcare increase vulnerability. Vitamin D deficiency is co…
Host defense peptides (HDPs), ancestral effectors of innate immunity, have emerged as pleiotropic regulators transcending their antimicrobial origins. This review critically examines the complex interplay among HDPs, hemostasis, and tissue repair. We…
Cathelicidins are evolutionarily conserved host defence peptides known for their dual antimicrobial and immunomodulatory functions. Among them, LL-37 in humans and CRAMP in rodents have emerged as crucial regulators of both mucosal immunity and CNS i…
The gastrointestinal mucus barrier (GIMB) is a gelatinous structure consisting primarily of mucins, water, and cathelicidin. Such a structure is the first line of defense against pathogens in the intestinal cavity and acts an important environment fo…
GF-17, the main antimicrobial domain of LL-37, exhibits optimal amphipathicity and heightened hydrophobicity, leading to increased hemolytic activity. A series of novel GF-17-like antimicrobial peptides (AMPs) were designed using lysine scanning to e…
BACKGROUND AND AIMS: Nonsteroidal anti-inflammatory drugs (NSAIDs) can cause small intestinal injury and dysbiosis. Although NSAID-induced dysbiosis is well-characterized and contributes to enteropathy, the changes in host-bacterial interactions duri…
Antimicrobial peptides (AMPs) are tiny proteins essential for innate immunity in various taxa, including mammals and insects. They provide defence against a wide range of pathogens, including bacteria, viruses, fungi, and parasites. Apart from their…