tp4 peptide TP4-LYC1 - total-synthesis-of-subtilin-solid-phase-peptide-synthesis TP4 (Nile tilapia piscidin TP4 Peptide: A Multifaceted Antimicrobial Agent with Therapeutic Promise

where-can-i-buy-copper-peptides The TP4 peptide, specifically Tilapia Piscidin 4 (TP4), is emerging as a significant player in the field of antimicrobial and therapeutic research作者：BC Su·2020·被引用次数：17—TP4targets adenine nucleotide translocator (ANT) 2, a protein essential for adenine nucleotide exchange across the inner membrane.. Derived from the Nile tilapia (Oreochromis niloticus), this cationic, amphipathic peptide exhibits a prominent alpha-helical secondary structure and possesses a remarkable range of biological activities. Research indicates that TP4 is not only a potent antimicrobial agent effective against various bacterial strains, including multidrug-resistant *Helicobacter pylori*, but also demonstrates promising anticancer properties. Its multifaceted nature, as highlighted by its ability to induce apoptosis in cancer cells and its potential as a food preservative, underscores its broad therapeutic utility.

Antimicrobial and Antibacterial Efficacy

A primary characteristic of the TP4 peptide is its potent bactericidal activity作者：BC Su·2019·被引用次数：44—Antimicrobialpeptidetilapia piscidin 4 (TP4) from Oreochromis niloticus exhibits potent bactericidal and anti-tumorigenic effects. In a variety of cancers, .... Studies have shown that TP4 effectively inhibits a wide spectrum of both Gram-positive and Gram-negative bacteria.Hydrophobic residues are critical for the helix-forming ... Its mechanism of action often involves membrane perturbation, leading to pore formation and bacterial cell death. For instance, TP4 has demonstrated a high antibacterial effect against *E. coli* O157:H7 and is considered a potential monotherapeutic agent for *H. pylori* infections. Furthermore, TP4 has been investigated for its antibiofilm activity against bacteria associated with bacterial vaginosis, showcasing its versatility in combating microbial challenges. The peptide's ability to assemble into oligomers on bacterial membranes provides direct evidence for its lytic capabilities.

Anticancer Applications and Mechanisms

Beyond its antimicrobial roles, the TP4 peptide exhibits significant anticancer activity, making it a compelling candidate for cancer therapy. Research indicates that TP4 can effectively reduce the viability of various cancer cells, including MCF-7 cells and human synovial sarcoma cells.作者：BC Su·2019·被引用次数：44—Antimicrobialpeptidetilapia piscidin 4 (TP4) from Oreochromis niloticus exhibits potent bactericidal and anti-tumorigenic effects. In a variety of cancers, ... Its cytotoxic effects are often mediated by inducing excessive production of reactive oxygen species (ROS), leading to cellular damage and programmed cell death (apoptosis) or necrosis. Some studies suggest TP4 targets specific cellular components, such as the microtubule network or mitochondria, to disrupt cellular functions and promote cancer cell demise. By targeting mitochondrial adenine nucleotide translocator (ANT) 2, TP4 can disrupt cellular energy exchange, contributing to its anti-tumorigenic effects作者：PK Hazam·2024·被引用次数：11—In this study, we explored the potential application ofTP4 as a food preservative, asking whether it can prevent spoilage due to microbial contamination.. This targeted action, coupled with its ability to trigger oxidative stress and mitochondrial hyperpolarization, positions TP4 as a promising agent for novel cancer treatment strategies.

Immunomodulatory and Other Biological Activities

The TP4 peptide's influence extends to the immune system, where it has demonstrated immunomodulatory effects. It has been observed to suppress regulatory T cell (Treg) populations and influence pro- and anti-inflammatory cytokines, potentially restoring immune balance.作者：JL Narayana·2015·被引用次数：95—The results of this study indicate thatTP4 may be an effective and safe monotherapeutic agentfor the treatment of multidrug resistant H. pylori infections. In addition to its antimicrobial and anticancer roles, TP4 has also been explored for applications such as a food preservative, leveraging its ability to prevent spoilage due to microbial contamination. Its capacity to stimulate cell proliferation and regulate cellular processes also points to broader biological functions that are still under investigation.2025年11月7日—TP4 is a 25 amino acid polypeptidewith prominent alpha-helical secondary structure. Furthermore, it is a cationic, amphipathic peptide that has ... The development of chimeric peptides like TP4-LYC1, which combine TP4 with other functional elements, further expands the therapeutic potential by enhancing cytotoxic effects against cancer cells.

Structural Properties and Future Directions

TP4 is characterized as a 25-amino acid polypeptide with a distinct alpha-helical structure.Hydrophobic residues are critical for the helix-forming ... Its cationic and amphipathic nature is crucial for its interaction with cell membranes and subsequent biological activities. Understanding the precise molecular mechanisms, including how hydrophobic residues contribute to its helix-forming and membrane-disrupting capabilities, is an ongoing area of researchTP4 (Nile tilapia piscidin) | Antimicrobial Peptide. Future directions for TP4 research likely involve further exploration of its therapeutic applications, optimization of its delivery and efficacy, and investigation into its safety profile. The potential for utilizing TP4 as a feed supplement due to its antibacterial and immune-regulatory activities also warrants further investigation, particularly in aquaculture. As research progresses, the TP4 peptide is poised to become a valuable tool in combating infectious diseases and developing novel cancer therapies.