background: chlorotoxin is a 36-amino acid peptide found in the venom of the leiurus quinquestriatus which blocks small-conductance chloride channels. chlorotoxin binds preferentially to glioma cells that allow development of new methods for the treatment and diagnosis of several types of cancer. thus chlorotoxin derivative was labeled with 131i for further investigation. materials and methods:...

introduction: bombesin is a 14-aminoacid peptide isolated from frog skin. the mammalian counterparts of the frog peptide are neuromedin b (nmb) and gastrin-releasing peptide (grp). bombesin (bbn) is a peptide showing high affinity for the gastrin releasing peptide receptor (grpr). prostate, small cell lung cancer, breast, gastric, and colon cancers are known to over express receptors to bombesi...

Combination of RGD cell adhesion peptide with GHK modulator synergistically improves targeting tumor cells. Amphiphilic peptides can be effectively displayed on liposomal surface for screening and drug delivery applications.

  Introduction: Bombesin is a 14-aminoacid peptide isolated from frog skin. The mammalian counterparts of the frog peptide are neuromedin B (NMB) and gastrin-releasing peptide (GRP). Bombesin (BBN) is a peptide showing high affinity for the gastrin releasing peptide receptor (GRPr). Prostate, small cell lung cancer, breast, gastric, and colon cancers are known to over...

Background/Aim: We have tested whether the anticancer peptide, PNC-27, that kills cancer cells but not normal by binding to cell membrane HDM-2 forming pores, CD44+ colon stem cells. Materials and Methods: Flow cytometry determined CD44 expression on six-colon lines one line (CCD-18Co). MTT, LDH release, annexin V caspase 3 assays were used assess PNC-27-induced death. Bioluminescence imaging m...

Abstract Vaccination with tumor epitopes associated MHC-I is an attractive approach directed at inducing tumor-specific CTLs. However, challenges remain in improving the therapeutic efficacy of peptide epitope vaccines, including low immunogenicity and insufficient stimulation innate immune components vivo. Herein, we report innovative strategy to overcome limitations. The essential feature thi...

Epitope peptides are not suitable for nasal administration immunity due to their poor immunogenicity and low delivery efficiency. Here, we reported an intranasal self-assembled nanovaccine (I-OVA NE), which was loaded with the IKVAV-OVA257–264 (I-OVA), a laminin peptide (Ile-Lys-Val-ala-Val, IKVAV) OVA257–264 epitope conjugated peptide. This I-OVA at concentration of 4 mg/mL showed average part...

AMD3100 (Plerixafor), a specific antagonist of CXCR4, is the most potent small molecule non-peptide inhibitor to CXCR4/CXCL12 axis. The chemokine receptor CXCR4 and its ligand CXCL12 (SDF-1) expressed in variety tumor cells play an important role regulating biological behavior. microenvironment (TME) environment around tumor, comprising blood vessels, immune cells, fibroblasts, signaling molecu...