1
|
Páhi ZG, Szűcs D, Miklós V, Ördög N, Monostori T, Varga J, Kemény L, Veréb Z, Pankotai T. Increased DNA damage of adipose tissue-derived mesenchymal stem cells under inflammatory conditions. Heliyon 2024; 10:e36275. [PMID: 39296022 PMCID: PMC11407982 DOI: 10.1016/j.heliyon.2024.e36275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 08/07/2024] [Accepted: 08/13/2024] [Indexed: 09/21/2024] Open
Abstract
Cells have evolved various DNA repair mechanisms to prevent DNA damage from building up. Malfunctions during DNA repair can influence cellular homeostasis because they can bring on genomic instability through the improper recognition of DNA damage or dysregulation of the repair process. Maintaining proper DNA repair is also essential for stem cells (SCs), as they provide a differentiated cell population to the living organism. SCs are regularly used in personalized stem cell therapy. Patients must be treated with specific activators to produce these SCs effectively. This report investigated the impact of treating mesenchymal stem cells (MSC) with lipopolysaccharide, tumor necrosis factor, interferon-gamma, polyinosinic acid, interleukin 1 beta, while monitoring their transcription-related response using next-generation sequencing. RNA sequencing revealed robust gene expression changes, including those of specific genes encoding proteins implicated in DNA damage response. Stem cells can effectively repair specific DNA damages; moreover, they fail to undergo senescence or cell death when genetic lesions accumulate. Here, we draw attention to an elevated DNA repair activation following MSC induction, which may be the main reason for the ineffective stem cell transplantation and may also contribute to the genetic drift that can initiate tumor formation.
Collapse
Affiliation(s)
- Zoltán G Páhi
- Hungarian Centre of Excellence for Molecular Medicine (HCEMM), Genome Integrity and DNA Repair Core Group, University of Szeged, Szeged, Hungary
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Diána Szűcs
- Competence Centre of the Life Sciences Cluster of the Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, Szeged, Hungary
- Doctoral School of Clinical Medicine, University of Szeged, Szeged, Hungary
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Vanda Miklós
- Hungarian Centre of Excellence for Molecular Medicine (HCEMM), Genome Integrity and DNA Repair Core Group, University of Szeged, Szeged, Hungary
- USZ Biobank, University of Szeged, Szeged, Hungary
| | - Nóra Ördög
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
- Competence Centre of the Life Sciences Cluster of the Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, Szeged, Hungary
- Doctoral School of Clinical Medicine, University of Szeged, Szeged, Hungary
| | - Tamás Monostori
- Competence Centre of the Life Sciences Cluster of the Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, Szeged, Hungary
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - János Varga
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Lajos Kemény
- Competence Centre of the Life Sciences Cluster of the Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, Szeged, Hungary
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
- Hungarian Centre of Excellence for Molecular Medicine (HCEMM), HCEMM-USZ Skin Research Group, University of Szeged, Szeged, Hungary
| | - Zoltán Veréb
- Competence Centre of the Life Sciences Cluster of the Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, Szeged, Hungary
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Tibor Pankotai
- Hungarian Centre of Excellence for Molecular Medicine (HCEMM), Genome Integrity and DNA Repair Core Group, University of Szeged, Szeged, Hungary
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| |
Collapse
|
2
|
Shin MK, Hwang IW, Jang BY, Bu KB, Han DH, Lee SH, Oh JW, Yoo JS, Sung JS. The Identification of a Novel Spider Toxin Peptide, Lycotoxin-Pa2a, with Antibacterial and Anti-Inflammatory Activities. Antibiotics (Basel) 2023; 12:1708. [PMID: 38136742 PMCID: PMC10740532 DOI: 10.3390/antibiotics12121708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
With the increasing challenge of controlling infectious diseases due to the emergence of antibiotic-resistant strains, the importance of discovering new antimicrobial agents is rapidly increasing. Animal venoms contain a variety of functional peptides, making them a promising platform for pharmaceutical development. In this study, a novel toxin peptide with antibacterial and anti-inflammatory activities was discovered from the spider venom gland transcriptome by implementing computational approaches. Lycotoxin-Pa2a (Lytx-Pa2a) showed homology to known-spider toxin, where functional prediction indicated the potential of both antibacterial and anti-inflammatory peptides without hemolytic activity. The colony-forming assay and minimum inhibitory concentration test showed that Lytx-Pa2a exhibited comparable or stronger antibacterial activity against pathogenic strains than melittin. Following mechanistic studies revealed that Lytx-Pa2a disrupts both cytoplasmic and outer membranes of bacteria while simultaneously inducing the accumulation of reactive oxygen species. The peptide exerted no significant toxicity when treated to human primary cells, murine macrophages, and bovine red blood cells. Moreover, Lytx-Pa2a alleviated lipopolysaccharide-induced inflammation in mouse macrophages by suppressing the expression of inflammatory mediators. These findings not only suggested that Lytx-Pa2a with dual activity can be utilized as a new antimicrobial agent for infectious diseases but also demonstrated the implementation of in silico methods for discovering a novel functional peptide, which may enhance the future utilization of biological resources.
Collapse
Affiliation(s)
- Min Kyoung Shin
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| | - In-Wook Hwang
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| | - Bo-Young Jang
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| | - Kyung-Bin Bu
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| | - Dong-Hee Han
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| | - Seung-Ho Lee
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| | - Jin Wook Oh
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| | - Jung Sun Yoo
- Species Diversity Research Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea;
| | - Jung-Suk Sung
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (I.-W.H.); (B.-Y.J.); (K.-B.B.); (D.-H.H.); (S.-H.L.); (J.W.O.)
| |
Collapse
|