Role of Proteases in Cancer

A special issue of Biomolecules (ISSN 2218-273X). This special issue belongs to the section "Molecular Biology".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 3132

Special Issue Editors


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Guest Editor
University of Arizona, Tucson, AZ, USA
Interests: gastrointestinal tumorigenesis; experimental mouse models of tumorigenesis; role of Kallikreins 6 in colorectal cancer and its utility as a biomarker and therapeutic target

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Guest Editor
Unit of Bacterial Genetics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
Interests: heat shock proteins; envelope stress response; protein folding catalysts; prolyl isomerase; LPS biosynthesis; LPS assembly; LPS modifications; non-coding regulatory RNAs; proteases; phosphatases; kinases
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Special Issue Information

Dear Colleagues,

Proteases are enzymes, which catalyze digestion of long proteins via hydrolysis of their peptide bonds into smaller polypeptides or single amino acids. Protein degradation, or proteolysis, is one of the most important processes in living organisms; therefore, proteases perform multiple functions in both normal and pathological states. Particularly, proteolytical degradation of extracellular matrix proteins by proteases is accepted as an event promoting neoplastic progression, although proteases that suppress cancer spreading have been identified as well.

Proteases perform complex and dynamic roles in cancer, as their expression is altered in most tumor cells. There are five major types of human protease classes established based on their catalytical mechanism: aspartic, cysteine, metalloproteinases, serine, and threonine. The roles of proteolytic enzymes may vary among cancer types and stages of malignant transformation and may include multiple classes of proteases and multiple proteolytic pathways within one type of cancer. Over the past four decades, significant information has been generated about the different functions of proteases in cancer. This Special issue will highlight the newest findings and advances in our understanding of proteinase-mediated molecular pathways in cancer.

Dr. Natalia A. Ignatenko
Dr. Gracjana Klein
Guest Editors

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Keywords

  • signaling proteases
  • proteolytic pathways
  • protease imaging in cancer
  • degradome

Published Papers (1 paper)

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Research

22 pages, 3957 KiB  
Article
Kallikrein-Related Peptidase 6 (KLK6) as a Contributor toward an Aggressive Cancer Cell Phenotype: A Potential Role in Colon Cancer Peritoneal Metastasis
by Hayet Bouzid, Feryel Soualmia, Katerina Oikonomopoulou, Antoninus Soosaipillai, Francine Walker, Khaoula Louati, Rea Lo Dico, Marc Pocard, Chahrazade El Amri, Natalia A. Ignatenko and Dalila Darmoul
Biomolecules 2022, 12(7), 1003; https://doi.org/10.3390/biom12071003 - 19 Jul 2022
Cited by 9 | Viewed by 2457
Abstract
Kallikrein-related peptidases (KLKs) are implicated in many cancer-related processes. KLK6, one of the 15 KLK family members, is a promising biomarker for diagnosis of many cancers and has been associated with poor prognosis of colorectal cancer (CRC) patients. Herein, we evaluated the expression [...] Read more.
Kallikrein-related peptidases (KLKs) are implicated in many cancer-related processes. KLK6, one of the 15 KLK family members, is a promising biomarker for diagnosis of many cancers and has been associated with poor prognosis of colorectal cancer (CRC) patients. Herein, we evaluated the expression and cellular functions of KLK6 in colon cancer-derived cell lines and in clinical samples from CRC patients. We showed that, although many KLKs transcripts are upregulated in colon cancer-derived cell lines, KLK6, KLK10, and KLK11 are the most highly secreted proteins. KLK6 induced calcium flux in HT29 cells by activation and internalization of protease-activated receptor 2 (PAR2). Furthermore, KLK6 induced extracellular signal–regulated kinases 1 and 2 (ERK1/2) phosphorylation. KLK6 suppression in HCT-116 colon cancer cells decreased the colony formation, increased cell adhesion to extracellular matrix proteins, and reduced spheroid formation and compaction. Immunohistochemistry (IHC) analysis demonstrated ectopic expression of KLK6 in human colon adenocarcinomas but not in normal epithelia. Importantly, high levels of KLK6 protein were detected in the ascites of CRC patients with peritoneal metastasis, but not in benign ascites. These data indicate that KLK6 overexpression is associated with aggressive CRC, and may be applied to differentiate between benign and malignant ascites. Full article
(This article belongs to the Special Issue Role of Proteases in Cancer)
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