Peptide name : BK-5

Source/Organism : Synthetic analogue of Bradykinin

Linear/Cyclic : Linear

Chirality : Mix

Peptide length: Not available

C-terminal modification: Linear

N-terminal modification : Free

Non-natural peptide information: Hyp = hydroxyproline

Assay type : MTS assay

Assay time : 24-h

Activity : Not Available

Cell line : HCT-116

Cancer type : Colorectal Cancer

Other activity : Anticancer

Amino Acid Composition Bar Chart : Not available

Molecular mass : Not available

Aliphatic index : Not available

Instability index : Not available

Hydrophobicity (GRAVY) : Not available

Isoelectric point : Not available

Charge (pH 7) : Not available

Aromaticity : Not available

Molar extinction coefficient (cysteine, cystine): Not available

Hydrophobic/hydrophilic ratio : Not available

hydrophobic moment : Not available

Missing amino acid : Not available

Most occurring amino acid : Not available

Most occurring amino acid frequency : Not available

Least occurring amino acid : Not available

Least occurring amino acid frequency : Not available

3D-structure: Not available

Secondary structure fraction (Helix, Turn, Sheet): Not available

SMILES Notation: Not available

Molecular descriptors: Not available

ADMET properties: Not available

1 : Szaryńska M, et al. Bradykinin and Neurotensin Analogues as Potential Compounds in Colon Cancer Therapy. Int J Mol Sci. 2023; 24:(unknown pages). doi: 10.3390/ijms24119644

Paper title : Bradykinin and Neurotensin Analogues as Potential Compounds in Colon Cancer Therapy.

Doi : https://doi.org/10.3390/ijms24119644

Abstract : Colorectal cancer (CRC) is one of the most lethal malignancies worldwide, so the attempts to find novel therapeutic approaches are necessary. The aim of our study was to analyze how chemical modifications influence physical, chemical, and biological properties of the two peptides, namely, bradykinin (BK) and neurotensin (NT). For this purpose, we used fourteen modified peptides, and their anti-cancers features were analyzed on the HCT116 CRC cell line. Our results confirmed that the spherical mode of a CRC cell line culture better reflects the natural tumour microenvironment. We observed that the size of the colonospheres was markedly reduced following treatment with some BK and NT analogues. The proportion of CD133+ cancer stem cells (CSCs) in colonospheres decreased following incubation with the aforementioned peptides. In our research, we found two groups of these peptides. The first group influenced all the analyzed cellular features, while the second seemed to include the most promising peptides that lowered the count of CD133+ CSCs with parallel substantial reduction in CRC cells viability. These analogues need further analysis to uncover their overall anti-cancer potential.