1
|
Wei X, Huang Z, Jiang L, Li Y, Zhang X, Leng Y, Jiang C. Charting the landscape of the environmental exposome. IMETA 2022; 1:e50. [PMID: 38867899 PMCID: PMC10989948 DOI: 10.1002/imt2.50] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/13/2022] [Accepted: 07/30/2022] [Indexed: 06/14/2024]
Abstract
The exposome depicts the total exposures in the lifetime of an organism. Human exposome comprises exposures from environmental and humanistic sources. Biological, chemical, and physical environmental exposures pose potential health threats, especially to susceptible populations. Although still in its nascent stage, we are beginning to recognize the vast and dynamic nature of the exposome. In this review, we systematically summarize the biological and chemical environmental exposomes in three broad environmental matrices-air, soil, and water; each contains several distinct subcategories, along with a brief introduction to the physical exposome. Disease-related environmental exposures are highlighted, and humans are also a major source of disease-related biological exposures. We further discuss the interactions between biological, chemical, and physical exposomes. Finally, we propose a list of outstanding challenges under the exposome research framework that need to be addressed to move the field forward. Taken together, we present a detailed landscape of environmental exposome to prime researchers to join this exciting new field.
Collapse
Affiliation(s)
- Xin Wei
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Zinuo Huang
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Liuyiqi Jiang
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Yueer Li
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Xinyue Zhang
- Department of GeneticsStanford UniversityStanfordCaliforniaUSA
| | - Yuxin Leng
- Department of Intensive Care UnitPeking University Third HospitalBeijingChina
| | - Chao Jiang
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| |
Collapse
|
2
|
Ferraro MG, Piccolo M, Pezzella A, Guerra F, Maione F, Tenore GC, Santamaria R, Irace C, Novellino E. Promelanogenic Effects by an Annurca Apple-Based Natural Formulation in Human Primary Melanocytes. Clin Cosmet Investig Dermatol 2021; 14:291-301. [PMID: 33790611 PMCID: PMC8008161 DOI: 10.2147/ccid.s299569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/25/2021] [Indexed: 01/21/2023]
Abstract
Introduction Melanocytes are engaged in synthesis, transport, and release of pigments at the epidermal-melanin units in response to the finely regulated melanogenic pathway. A multifaceted combination of both intrinsic and extrinsic factors – from endocrine and paracrine dynamics to exogenous stimuli such as sunlight and xenobiotics – modulates expression and activity of proteins involved in pigmentation, including the rate-limiting enzyme tyrosinase. As well as playing critical physiological functions comprising skin photoprotection, melanins define hair and skin pigmentation which in turn have impacted considerably to human social communication since time immemorial. Additionally, numerous skin diseases based on pigmentation alterations can have serious public influence. While several melanogenesis inhibitors are already available, the number of melanin activators and tyrosinase stimulators as drug-like agents is still limited. Methods To explore the biological effects of an Annurca Apple-based nutraceutical preparation (AMS) on melanin production, experiments in cellular models of human skin were performed. Both primary cultures and co-cultures of epidermal melanocytes (HEMa) and follicular keratinocytes (HHFK) were used. Results We show that AMS, by now branded for its cutaneous beneficial effects, induces in total biocompatibility a significant promelanogenic effect in human primary melanocytes. In line, we found melanin cytosolic accumulation consistent with tyrosinase up-regulation. Conclusion Disposal of skin pigmenting agents would be attractive for the treatment of hypopigmentation disorders, to postpone skin photoaging or simply for fashion, so that discovery and development of melanogenesis stimulators, especially from natural sources, is nowadays a dynamic area of research.
Collapse
Affiliation(s)
- Maria Grazia Ferraro
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Marialuisa Piccolo
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Alessandro Pezzella
- Department of Chemical Sciences, University of Naples "Federico II", Naples, 80126, Italy
| | - Fabrizia Guerra
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Francesco Maione
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Gian Carlo Tenore
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Rita Santamaria
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Carlo Irace
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Ettore Novellino
- Department of Pharmacy, School of Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| |
Collapse
|
3
|
Titanium Dioxide Nanoparticles Induced HeLa Cell Necrosis under UVA Radiation through the ROS-mPTP Pathway. NANOMATERIALS 2020; 10:nano10102029. [PMID: 33076304 PMCID: PMC7602383 DOI: 10.3390/nano10102029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/09/2020] [Accepted: 10/11/2020] [Indexed: 12/16/2022]
Abstract
Titanium dioxide nanoparticles (nano-TiO2), as a common nanomaterial, are widely used in water purification, paint, skincare and sunscreens. Its safety has always been a concern. Prior studies have shown that ultraviolet A (UVA) can exacerbate the toxicity of nano-TiO2, including inducing cell apoptosis, changing glycosylation levels, arresting cell cycle, inhibiting tumor cell and bacterial growth. However, whether the combination of UVA and nano-TiO2 cause cell necrosis and its mechanism are still rarely reported. In this study, we investigated the cytotoxicity and phototoxicity of mixture crystalline nano-TiO2 (25% rutile and 75% anatase, 21 nm) under UVA irradiation in HeLa cells. Our results showed that the abnormal membrane integrity and the ultrastructure of HeLa cells, together with the decreased viability induced by nano-TiO2 under UVA irradiation, were due to cell necrosis rather than caspase-dependent apoptosis. Furthermore, nano-TiO2 and UVA generated the reactive oxygen species (ROS) and caused the mitochondrial permeability transition pore (mPTP) of HeLa cells to abnormally open. Cell viability was significantly increased after adding vitamin C (VC) or cyclosporin A (CsA) individually to inhibit ROS and mPTP. Clearance of ROS could not only impede the opening of mPTP but also reduce the rate of cell necrosis. The results suggest the possible mechanism of HeLa cell necrosis caused by nano-TiO2 under UVA irradiation through the ROS-mPTP pathway.
Collapse
|
4
|
An W, Zhu JW, Jiang F, Jiang H, Zhao JL, Liu MY, Li GX, Shi XG, Sun C, Li ZS. Fibromodulin is upregulated by oxidative stress through the MAPK/AP-1 pathway to promote pancreatic stellate cell activation. Pancreatology 2020; 20:278-287. [PMID: 31831391 DOI: 10.1016/j.pan.2019.09.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/15/2019] [Accepted: 09/25/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Fibromodulin (FMOD) expression in chronic pancreatitis (CP) tissues and its effect on PSC was unknown. Our aim was to investigate the role of FMOD in regulating PSC profibrogenic phenotype and the molecular mechanism of CP. METHODS Rat CP models were induced by dibutyltin dichloride. Pancreatic fibrosis was evaluated by Sirius Red staining. The expression of FMOD and α-SMA was measured, the correlation between FMOD expression and fibrosis was investigated in CP models and CP patients. The effects of FMOD on PSCs were examined by CCK-8 and migration assays. We investigated the mechanisms underlying FMOD expression using MND and a MAPK pathway inhibitor. Luciferase reporter and chromatin immunoprecipitation assays were used to investigate the effects of AP-1 on FMOD expression. RESULTS Sirius Red staining revealed high collagen deposition in model rats. Higher expression of FMOD and α-SMA was observed in fibrotic tissues, and the expression of FMOD was correlated with that of α-SMA and the areas of Sirius Red staining. Upregulation of FMOD increased the expression of collagen I and α-SMA and the proliferation and migration of PSCs. MND induced FMOD and α-SMA expression, and knockdown of FMOD abated α-SMA expression. ERK and JNK inhibitors attenuated FMOD expression as induced by MND. AP-1 upregulated the expression of FMOD. AP-1 binds to the FMOD promoter and transcriptionally regulates FMOD expression. CONCLUSION FMOD levels are upregulated in fibrosis tissues in CP and it is a critical downstream mediator of oxidative stress. FMOD induces PSC activation and maintains the fibrosis phenotype of PSCs.
Collapse
Affiliation(s)
- Wei An
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Jian-Wei Zhu
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215008, China
| | - Fei Jiang
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Hui Jiang
- Department of Pathology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Jiu-Long Zhao
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Mu-Yun Liu
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Gui-Xiang Li
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Xin-Gang Shi
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Chang Sun
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Zhao-Shen Li
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| |
Collapse
|
5
|
Nastase MV, Janicova A, Wygrecka M, Schaefer L. Signaling at the Crossroads: Matrix-Derived Proteoglycan and Reactive Oxygen Species Signaling. Antioxid Redox Signal 2017; 27:855-873. [PMID: 28510506 DOI: 10.1089/ars.2017.7165] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Proteoglycans (PGs), besides their structural contribution, have emerged as dynamic components that mediate a multitude of cellular events. The various roles of PGs are attributed to their structure, spatial localization, and ability to act as ligands and receptors. Reactive oxygen species (ROS) are small mediators that are generated in physiological and pathological conditions. Besides their reactivity and ability to induce oxidative stress, a growing body of data suggests that ROS signaling is more relevant than direct radical damage in development of human pathologies. Recent Advances: Cell surface transmembrane PGs (syndecans, cluster of differentiation 44) represent receptors in diverse and complex transduction networks, which involve redox signaling with implications in cancer, fibrosis, renal dysfunction, or Alzheimer's disease. Through NADPH oxidase (NOX)-dependent ROS, the extracellular PG, hyaluronan is involved in osteoclastogenesis and cancer. The ROS sources, NOX1 and NOX4, increase biglycan-induced inflammation, while NOX2 is a negative regulator. CRITICAL ISSUES The complexity of the mechanisms that bring ROS into the light of PG biology might be the foundation of a new research area with significant promise for understanding health and disease. Important aspects need to be investigated in PG/ROS signaling: the discovery of specific targets of ROS, the precise ROS-induced chemical modifications of these targets, and the study of their pathological relevance. FUTURE DIRECTIONS As we become more and more aware of the interactions between PG and ROS signaling underlying intracellular communication and cell fate decisions, it is quite conceivable that this field will allow to identify new therapeutic targets.-Antioxid. Redox Signal. 27, 855-873.
Collapse
Affiliation(s)
- Madalina-Viviana Nastase
- 1 Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität , Frankfurt am Main, Germany .,2 National Institute for Chemical-Pharmaceutical Research and Development , Bucharest, Romania
| | - Andrea Janicova
- 1 Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität , Frankfurt am Main, Germany
| | - Malgorzata Wygrecka
- 3 Department of Biochemistry, Faculty of Medicine, Justus Liebig University , Giessen, Germany
| | - Liliana Schaefer
- 1 Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität , Frankfurt am Main, Germany
| |
Collapse
|
6
|
Nakyai W, Saraphanchotiwitthaya A, Viennet C, Humbert P, Viyoch J. An In Vitro
Model for Fibroblast Photoaging Comparing Single and Repeated UVA Irradiations. Photochem Photobiol 2017; 93:1462-1471. [DOI: 10.1111/php.12801] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 05/25/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Wongnapa Nakyai
- Department of Pharmaceutical Technology; Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry; Naresuan University; Phitsanulok Thailand
| | - Aurasorn Saraphanchotiwitthaya
- Department of Pharmaceutical Technology; Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry; Naresuan University; Phitsanulok Thailand
| | - Céline Viennet
- Engineering and Cutaneous Biology Laboratory; INSERM UMR 1098; University of Franche-Comte; Besancon France
| | - Philippe Humbert
- Engineering and Cutaneous Biology Laboratory; INSERM UMR 1098; University of Franche-Comte; Besancon France
- Department of Dermatology; University Hospital; Besancon France
| | - Jarupa Viyoch
- Department of Pharmaceutical Technology; Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry; Naresuan University; Phitsanulok Thailand
| |
Collapse
|
7
|
Compare D, Rocco A, Coccoli P, Angrisani D, Sgamato C, Iovine B, Salvatore U, Nardone G. Lactobacillus casei DG and its postbiotic reduce the inflammatory mucosal response: an ex-vivo organ culture model of post-infectious irritable bowel syndrome. BMC Gastroenterol 2017; 17:53. [PMID: 28410580 PMCID: PMC5391611 DOI: 10.1186/s12876-017-0605-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/28/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The evidence on the role of gut microbiota in post-infectious irritable bowel syndrome (PI-IBS) is convincing. Lactobacillus spp. positively affect IBS symptoms, although the mechanisms through which probiotics exert their beneficial effects are largely unknown. The aim of the study is to evaluate the role of Lactobacillus casei DG (LC-DG) and its postbiotic (PB) in modulating the inflammatory/immune-response in PI-IBS in an ex-vivo organ culture model. METHODS Ex vivo cultures of ileal and colonic mucosa from 10 PI-IBS, diarrhea predominant subtype (D) patients, and 10 healthy controls (HC) were treated with LPS, LC-DG and PB. Interleukin (IL)-1α, IL-6, IL-8 and IL-10 mRNA levels were assessed by real-time PCR and Toll like receptor 4 (TLR-4) protein expression by Western blotting. RESULTS At baseline, IL-1α, IL-6 and IL-8 mRNA levels as well as TLR-4 protein expression were significantly higher while IL-10 mRNA levels were lower in PI-IBS D than in HC in both ileum and colon. LC-DG and PB significantly reduced the mRNA levels of pro-inflammatory cytokines and TLR-4 while increased that of IL-10 after LPS stimulation. The protective effect was more pronounced for PB than LC-DG treatment. CONCLUSION LC-DG and its PB attenuate the inflammatory mucosal response in an ex-vivo organ culture model of PI-IBS D.
Collapse
Affiliation(s)
- Debora Compare
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Alba Rocco
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Pietro Coccoli
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Debora Angrisani
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Costantino Sgamato
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Barbara Iovine
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Umberto Salvatore
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Gerardo Nardone
- Department of Clinical Medicine and Surgery, Gastroenterology Unit, University Federico II of Naples, Via S. Pansini 5, 80131, Naples, Italy.
| |
Collapse
|
8
|
l-carnosine dipeptide overcomes acquired resistance to 5-fluorouracil in HT29 human colon cancer cells via downregulation of HIF1-alpha and induction of apoptosis. Biochimie 2016; 127:196-204. [PMID: 27234614 DOI: 10.1016/j.biochi.2016.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 05/16/2016] [Indexed: 01/19/2023]
Abstract
Hypoxia-inducible factor (HIF-1α) protein is over-expressed in many human cancers and is a major cause of resistance to drugs. HIF-1α up-regulation decreases the effectiveness of several anticancer agents, including 5-fluorouracil (5-FU), because it induces the expression of drug efflux transporters, alters DNA repair mechanisms and modifies the balance between pro- and antiapoptotic factors. These findings suggest that inhibition of HIF-1α activity may sensitize cancer cells to cytotoxic drugs. We previously reported that l-carnosine reduces HIF-1α expression by inhibiting the proliferation of colon cancer cells. In the present study we investigated the effect of l-carnosine on HT29 colon cancer cells with acquired resistance to 5-FU. We found that l-carnosine reduces colon cancer cell viability, decreases HIF-1α and multi-drug resistant protein MDR1-pg expression, and induces apoptosis. Moreover, the l-carnosine/5-FU combination lowers the expression of some chemoresistance markers. The combination index evaluated in vitro on the HT29-5FU cell line by median drug effect analysis reveals a significant synergistic effect.
Collapse
|
9
|
Hu Z, Holzschuh J, Driever W. Loss of DDB1 Leads to Transcriptional p53 Pathway Activation in Proliferating Cells, Cell Cycle Deregulation, and Apoptosis in Zebrafish Embryos. PLoS One 2015. [PMID: 26225764 PMCID: PMC4520591 DOI: 10.1371/journal.pone.0134299] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
DNA damage-binding protein 1 (DDB1) is a large subunit of the heterodimeric DDB complex that recognizes DNA lesions and initiates the nucleotide excision repair process. DDB1 is also a component of the CUL4 E3 ligase complex involved in a broad spectrum of cellular processes by targeted ubiquitination of key regulators. Functions of DDB1 in development have been addressed in several model organisms, however, are not fully understood so far. Here we report an ENU induced mutant ddb1 allele (ddb1m863) identified in zebrafish (Danio rerio), and analyze its effects on development. Zebrafish ddb1 is expressed broadly, both maternally and zygotically, with enhanced expression in proliferation zones. The (ddb1m863 mutant allele affects the splice acceptor site of exon 20, causing a splicing defect that results in truncation of the 1140 amino acid protein after residue 800, lacking part of the β-propeller domain BPC and the C-terminal helical domain CTD. ddb1m863 zygotic mutant embryos have a pleiotropic phenotype, including smaller and abnormally shaped brain, head skeleton, eyes, jaw, and branchial arches, as well as reduced dopaminergic neuron groups. However, early forming tissues develop normally in zygotic ddb1m863 mutant embryos, which may be due to maternal rescue. In ddb1m863 mutant embryos, pcna-expressing proliferating cell populations were reduced, concurrent with increased apoptosis. We also observed a concomitant strong up-regulation of transcripts of the tumor suppressor p53 (tp53) and the cell cycle inhibitor cdkn1a (p21a/bCIP1/WAF1) in proliferating tissues. In addition, transcription of cyclin genes ccna2 and ccnd1 was deregulated in ddb1m863 mutants. Reduction of p53 activity by anti-sense morpholinos alleviated the apoptotic phenotype in ddb1m863 mutants. These results imply that Ddb1 may be involved in maintaining proper cell cycle progression and viability of dividing cells during development through transcriptional mechanisms regulating genes involved in cell cycle control and cell survival.
Collapse
Affiliation(s)
- Zhilian Hu
- Developmental Biology, Institute Biology I, Faculty of Biology, Albert-Ludwigs-University Freiburg, Hauptstrasse 1, 79104, Freiburg, Germany; Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI, 48109-5646, United States of America
| | - Jochen Holzschuh
- Developmental Biology, Institute Biology I, Faculty of Biology, Albert-Ludwigs-University Freiburg, Hauptstrasse 1, 79104, Freiburg, Germany
| | - Wolfgang Driever
- Developmental Biology, Institute Biology I, Faculty of Biology, Albert-Ludwigs-University Freiburg, Hauptstrasse 1, 79104, Freiburg, Germany; BIOSS-Centre for Biological Signalling Studies, Albert-Ludwigs-University Freiburg, Schänzlestrasse 18, 79104, Freiburg, Germany
| |
Collapse
|
10
|
DNA damage and repair in plants under ultraviolet and ionizing radiations. ScientificWorldJournal 2015; 2015:250158. [PMID: 25729769 PMCID: PMC4333283 DOI: 10.1155/2015/250158] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 10/27/2014] [Accepted: 11/04/2014] [Indexed: 11/17/2022] Open
Abstract
Being sessile, plants are continuously exposed to DNA-damaging agents present in the environment such as ultraviolet (UV) and ionizing radiations (IR). Sunlight acts as an energy source for photosynthetic plants; hence, avoidance of UV radiations (namely, UV-A, 315–400 nm; UV-B, 280–315 nm; and UV-C, <280 nm) is unpreventable. DNA in particular strongly absorbs UV-B; therefore, it is the most important target for UV-B induced damage. On the other hand, IR causes water radiolysis, which generates highly reactive hydroxyl radicals (OH•) and causes radiogenic damage to important cellular components. However, to maintain genomic integrity under UV/IR exposure, plants make use of several DNA repair mechanisms. In the light of recent breakthrough, the current minireview (a) introduces UV/IR and overviews UV/IR-mediated DNA damage products and (b) critically discusses the biochemistry and genetics of major pathways responsible for the repair of UV/IR-accrued DNA damage. The outcome of the discussion may be helpful in devising future research in the current context.
Collapse
|
11
|
Rezzani R, Rodella LF, Favero G, Damiani G, Paganelli C, Reiter RJ. Attenuation of ultraviolet A-induced alterations in NIH3T3 dermal fibroblasts by melatonin. Br J Dermatol 2014; 170:382-91. [PMID: 24024734 DOI: 10.1111/bjd.12622] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2013] [Indexed: 01/07/2023]
Abstract
BACKGROUND Sun exposure is responsible for long-term clinical skin changes such as photoageing, photodamage and photocancers. Ultraviolet (UV)A wavelengths stimulate the production of reactive oxygen species (ROS) that may contribute to photoageing. To protect against oxidative stress, skin cells have developed several defence systems, including ROS and metal ion scavengers and a battery of detoxifying, haem-degrading and repair enzymes. Melatonin's antioxidant activity is the result of three different but complementary actions: (i) a direct action due to its ability to act as a free radical scavenger; (ii) an indirect action that is a consequence of melatonin's ability to reduce free radical generation (radical avoidance); and (iii) its ability to upregulate antioxidant enzymes. OBJECTIVES In this study, we focused our attention on the prevention of photodamage, choosing melatonin as an antioxidant agent. METHODS In the present study we analysed the effects of pretreatment of murine fibroblasts cells (NIH3T3) with melatonin (1 mmol L(-1) ) followed by UVA irradiation (15 J cm(-2) ). Thereafter, changes in components of the extracellular matrix and in some antioxidant enzymes (inducible and constitutive haem oxygenase) were evaluated. RESULTS We observed that UVA radiation caused altered expression of extracellular matrix proteins and induced the expression of inducible haem oxygenase. This increase was not sufficient to protect the cells from damage. Instead, melatonin pretreatment led to increased expression of haem-degrading enzymes and suppression of UVA-induced photodamage. CONCLUSIONS These results suggest that melatonin, as a modifier of the dermatoendocrine system, may have utility in reducing the effects of skin ageing.
Collapse
Affiliation(s)
- R Rezzani
- Section of Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, Viale Europa 11, 25123, Brescia, Italy
| | | | | | | | | | | |
Collapse
|
12
|
Shibuya S, Ozawa Y, Toda T, Watanabe K, Tometsuka C, Ogura T, Koyama YI, Shimizu T. Collagen peptide and vitamin C additively attenuate age-related skin atrophy in Sod1-deficient mice. Biosci Biotechnol Biochem 2014; 78:1212-20. [PMID: 25229861 DOI: 10.1080/09168451.2014.915728] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Age-related skin thinning is correlated with a decrease in the content of collagen in the skin. Accumulating evidence suggests that collagen peptide (CP) and vitamin C (VC) transcriptionally upregulate type I collagen in vivo. However, the additive effects of CP and VC on age-related skin changes remain unclear. We herein demonstrate that CP and a VC derivative additively corrected age-related skin thinning via reduced oxidative damage in superoxide dismutase 1 (Sod1)-deficient mice. Co-treatment with these compounds significantly normalized the altered gene expression of Col1a1, Has2, and Ci1, a proton-coupled oligopeptide transporter, in Sod1(-/-) skin. The in vitro analyses further revealed that collagen oligopeptide, a digestive product of ingested CP, significantly promoted the bioactivity of the VC derivative with respect to the migration and proliferation of Sod1(-/-) fibroblasts. These findings suggest that combined treatment with CP and VC is effective in cases of age-related skin pathology.
Collapse
Affiliation(s)
- Shuichi Shibuya
- a Department of Advanced Aging Medicine , Chiba University Graduate School of Medicine , Chiba , Japan
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Iovine B, Oliviero G, Garofalo M, Orefice M, Nocella F, Borbone N, Piccialli V, Centore R, Mazzone M, Piccialli G, Bevilacqua MA. The anti-proliferative effect of L-carnosine correlates with a decreased expression of hypoxia inducible factor 1 alpha in human colon cancer cells. PLoS One 2014; 9:e96755. [PMID: 24804733 PMCID: PMC4013086 DOI: 10.1371/journal.pone.0096755] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 04/05/2014] [Indexed: 11/19/2022] Open
Abstract
In recent years considerable attention has been given to the use of natural substances as anticancer drugs. The natural antioxidant dipeptide L-carnosine belongs to this class of molecules because it has been proved to have a significant anticancer activity both in vitro and in vivo. Previous studies have shown that L-carnosine inhibits the proliferation of human colorectal carcinoma cells by affecting the ATP and Reactive Oxygen Species (ROS) production. In the present study we identified the Hypoxia-Inducible Factor 1α (HIF-1α) as a possible target of L-carnosine in HCT-116 cell line. HIF-1α protein is over-expressed in multiple types of human cancer and is the major cause of resistance to drugs and radiation in solid tumours. Of particular interest are experimental data supporting the concept that generation of ROS provides a redox signal for HIF-1α induction, and it is known that some antioxidants are able to suppress tumorigenesis by inhibiting HIF-1α. In the current study we found that L-carnosine reduces the HIF-1α protein level affecting its stability and decreases the HIF-1 transcriptional activity. In addition, we demonstrated that L-carnosine is involved in ubiquitin-proteasome system promoting HIF-1α degradation. Finally, we compared the antioxidant activity of L-carnosine with that of two synthetic anti-oxidant bis-diaminotriazoles (namely 1 and 2, respectively). Despite these three compounds have the same ability in reducing intracellular ROS, 1 and 2 are more potent scavengers and have no effect on HIF-1α expression and cancer cell proliferation. These findings suggest that an analysis of L-carnosine antioxidant pathway will clarify the mechanism underlying the anti-proliferative effects of this dipeptide on colon cancer cells. However, although the molecular mechanism by which L-carnosine down regulates or inhibits the HIF-1α activity has not been yet elucidated, this ability may be promising in treating hypoxia-related diseases.
Collapse
Affiliation(s)
- Barbara Iovine
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Giorgia Oliviero
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Mariangela Garofalo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Maria Orefice
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Francesca Nocella
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Vincenzo Piccialli
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Roberto Centore
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Massimiliano Mazzone
- Lab of Molecular Oncology and Angiogenesis, Vesalius Research Center, Leuven, Belgium
- Lab of Molecular Oncology and Angiogenesis, Vesalius Research Center, Department of Oncology, Leuven, Belgium
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Maria Assunta Bevilacqua
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
- * E-mail:
| |
Collapse
|
14
|
Park M, Han J, Lee CS, Heung Soo B, Lim KM, Ha H. Carnosic acid, a phenolic diterpene from rosemary, prevents UV-induced expression of matrix metalloproteinases in human skin fibroblasts and keratinocytes. Exp Dermatol 2013; 22:336-41. [DOI: 10.1111/exd.12138] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Miyoung Park
- Medical Beauty Research Institute; Amorepacific Corporation R&D Center; Yongin Korea
- Division of Life and Pharmaceutical Sciences; College of Pharmacy; Ewha Womans University; Seoul Korea
| | - Jiwon Han
- Medical Beauty Research Institute; Amorepacific Corporation R&D Center; Yongin Korea
| | - Chang Seok Lee
- Medical Beauty Research Institute; Amorepacific Corporation R&D Center; Yongin Korea
| | - Baek Heung Soo
- Medical Beauty Research Institute; Amorepacific Corporation R&D Center; Yongin Korea
| | - Kyung-Min Lim
- Medical Beauty Research Institute; Amorepacific Corporation R&D Center; Yongin Korea
- Division of Toxicology; College of Pharmacy; Ewha Womans University; Seoul Korea
| | - Hunjoo Ha
- Division of Life and Pharmaceutical Sciences; College of Pharmacy; Ewha Womans University; Seoul Korea
| |
Collapse
|
15
|
Iovine B, Iannella ML, Gasparri F, Giannini V, Monfrecola G, Bevilacqua MA. A comparative analysis of the photo-protective effects of soy isoflavones in their aglycone and glucoside forms. Int J Mol Sci 2012; 13:16444-56. [PMID: 23211668 PMCID: PMC3546700 DOI: 10.3390/ijms131216444] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 11/24/2012] [Accepted: 11/29/2012] [Indexed: 12/25/2022] Open
Abstract
Isoflavones exist in nature predominantly as glucosides such as daidzin or genistin and are rarely found in their corresponding aglycone forms daidzein and genistein. The metabolism and absorption of isoflavones ingested with food is well documented, but little is known about their use as topical photo-protective agents. The aim of this study was to investigate in a comparative analysis the photo-protective effects of isoflavones in both their aglycone and glucoside forms. In human skin fibroblasts irradiated with 60 mJ/cm2 ultraviolet B (UVB), we measured the expression levels of COX-2 and Gadd45, which are involved in inflammation and DNA repair, respectively. We also determined the cellular response to UVB-induced DNA damage using the comet assay. Our findings suggest that both the isoflavone glucosides at a specific concentration and combination with an aglycone mixture exerted an anti-inflammatory and photo-protective effect that prevented 41% and 71% of UVB-induced DNA damage, respectively. The advantages of using either isoflavone glucosides or an aglycone mixture in applications in the field of dermatology will depend on their properties and their different potential uses.
Collapse
Affiliation(s)
- Barbara Iovine
- Department of Biochemistry and Medical Biotechnology, University of Naples “Federico II”, via S. Pansini 5, 80131 Naples, Italy; E-Mails: (B.I.); (M.L.I.)
| | - Maria Luigia Iannella
- Department of Biochemistry and Medical Biotechnology, University of Naples “Federico II”, via S. Pansini 5, 80131 Naples, Italy; E-Mails: (B.I.); (M.L.I.)
| | - Franco Gasparri
- Rottapharm-Madaus Dermo-Cosmetic R & D Division, Via Valosa di Sopra 9, 20052 Monza, Italy; E-Mails: (F.G.); (V.G.)
| | - Valentina Giannini
- Rottapharm-Madaus Dermo-Cosmetic R & D Division, Via Valosa di Sopra 9, 20052 Monza, Italy; E-Mails: (F.G.); (V.G.)
| | - Giuseppe Monfrecola
- Department of Systematic Pathology, Section of Dermatology, Faculty of Medicine, University of Naples “Federico II”, via S. Pansini 5, 80131 Naples, Italy; E-Mail:
| | - Maria Assunta Bevilacqua
- Department of Biochemistry and Medical Biotechnology, University of Naples “Federico II”, via S. Pansini 5, 80131 Naples, Italy; E-Mails: (B.I.); (M.L.I.)
- Faculty of Biotechnology Sciences, University of Naples “Federico II”, Via S. Pansini 5, 80131 Napoli, Italy
| |
Collapse
|
16
|
Mormone E, Lu Y, Ge X, Fiel MI, Nieto N. Fibromodulin, an oxidative stress-sensitive proteoglycan, regulates the fibrogenic response to liver injury in mice. Gastroenterology 2012; 142:612-621.e5. [PMID: 22138190 PMCID: PMC3800000 DOI: 10.1053/j.gastro.2011.11.029] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 11/18/2011] [Accepted: 11/22/2011] [Indexed: 12/20/2022]
Abstract
BACKGROUND & AIMS Collagen I deposition contributes to liver fibrosis, yet little is known about other factors that mediate this process. Fibromodulin is a liver proteoglycan that regulates extracellular matrix organization and is induced by fibrogenic stimuli. We propose that fibromodulin contributes to the pathogenesis of fibrosis by regulating the fibrogenic phenotype of hepatic stellate cells (HSCs). METHODS We analyzed liver samples from patients with hepatitis C-associated cirrhosis and healthy individuals (controls). We used a coculture model to study interactions among rat HSCs, hepatocytes, and sinusoidal endothelial cells. We induced fibrosis in livers of wild-type and Fmod(-/-) mice by bile duct ligation, injection of CCl(4), or administration of thioacetamide. RESULTS Liver samples from patients with cirrhosis had higher levels of fibromodulin messenger RNA and protein than controls. Bile duct ligation, CCl(4), and thioacetamide each increased levels of fibromodulin protein in wild-type mice. HSCs, hepatocytes, and sinusoidal endothelial cells produced and secreted fibromodulin. Infection of HSCs with an adenovirus that expressed fibromodulin increased expression of collagen I and α-smooth muscle actin, indicating increased activation of HSCs and fibrogenic potential. Recombinant fibromodulin promoted proliferation, migration, and invasion of HSCs, contributing to their fibrogenic activity. Fibromodulin was sensitive to reactive oxygen species. HepG2 cells that express cytochrome P450 2E1 produced fibromodulin, and HSCs increased fibromodulin production in response to pro-oxidants. In mice, administration of an antioxidant prevented the increase in fibromodulin in response to CCl(4). Coculture of hepatocytes or sinusoidal endothelial cells with HSCs increased the levels of reactive oxygen species in the culture medium, along with collagen I and fibromodulin proteins; this increase was prevented by catalase. Fibromodulin bound to collagen I, but the binding did not prevent collagen I degradation by matrix metalloproteinase 13. Bile duct ligation caused liver fibrosis in wild-type but not Fmod(-/-) mice. CONCLUSIONS Fibromodulin levels are increased in livers of patients with cirrhosis. Hepatic fibromodulin activates HSCs and promotes collagen I deposition, which leads to liver fibrosis in mice.
Collapse
Affiliation(s)
- Elisabetta Mormone
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, New York, New York
| | - Yongke Lu
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, New York, New York
| | - Xiaodong Ge
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, New York, New York
| | - Maria Isabel Fiel
- Division of Liver Diseases, Department of Pathology, Mount Sinai School of Medicine, New York, New York
| | - Natalia Nieto
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, New York, New York
| |
Collapse
|
17
|
Lee YK, Cha HJ, Hong M, Yoon Y, Lee H, An S. Role of NF-κB–p53 crosstalk in ultraviolet A-induced cell death and G1 arrest in human dermal fibroblasts. Arch Dermatol Res 2011; 304:73-9. [DOI: 10.1007/s00403-011-1176-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 09/02/2011] [Accepted: 09/07/2011] [Indexed: 10/17/2022]
|
18
|
Iovine B, Iannella ML, Bevilacqua MA. Damage-specific DNA binding protein 1 (DDB1): a protein with a wide range of functions. Int J Biochem Cell Biol 2011; 43:1664-7. [PMID: 21959250 DOI: 10.1016/j.biocel.2011.09.001] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 09/09/2011] [Accepted: 09/14/2011] [Indexed: 11/15/2022]
Abstract
Damage-specific DNA binding protein 1 (DDB1) is a multifunctional protein that was first isolated as a subunit of a heterodimeric complex that recognises the UV-induced DNA lesions in the nucleotide excision repair pathway. DDB1 and DDB2 form a complex that promotes the global genome repair (GG-NER), whereas DDB1 and Cockayne syndrome group A protein (CSA) form a complex that contributes to the transcription-coupled repair (TC-NER) pathway. DDB1 is also a component of an ubiquitin-E3 ligase complex and functions as substrate or adapter protein between Cullin 4A (Cul4A) and CUL4-associated factors (DCAFs) to target substrates for ubiquitination. CUL4-DDB1 E3-ligase complex regulates the selective proteolysis of key proteins in DNA repair, replication and transcription. In addition, DDB1 plays a role in transcriptional regulation of UV-induced genes. It is conceivable that DDB1 acts as a sensor of damage to maintain the balance between genome integrity and cell cycle progression. However, the temporal order between these two events remains to be established.
Collapse
Affiliation(s)
- Barbara Iovine
- Dipartimento di Biochimica e Biotecnologie Mediche, Università di Napoli Federico II, Via S. Pansini 5, 80131 Napoli, Italy
| | | | | |
Collapse
|
19
|
Iovine B, Iannella ML, Nocella F, Pricolo MR, Bevilacqua MA. Carnosine inhibits KRAS-mediated HCT116 proliferation by affecting ATP and ROS production. Cancer Lett 2011; 315:122-8. [PMID: 22137144 DOI: 10.1016/j.canlet.2011.07.021] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 07/13/2011] [Accepted: 07/20/2011] [Indexed: 10/17/2022]
Abstract
Carnosine is a natural dipeptide that has generated particular interest for its antioxidant, anti-aging and especially for its antiproliferative properties. In this study, we demonstrate that carnosine inhibits the proliferation of human HCT116 colon cancer cells. In this cell line, the activating KRAS mutation induces mitochondrial ROS, the signaling molecules for cell proliferation. We observed that 50-100 mM carnosine decreases ATP and ROS concentration and induces cell cycle arrest in G1 phase. In HCT116 cells these effects are related to decreased ERK1/2 phosphorylation and increased p21waf1 protein. Our findings support the concept that carnosine could inhibit HCT116 cell growth via its antioxidant activity and its ability to affect glycolysis.
Collapse
Affiliation(s)
- Barbara Iovine
- Dipartimento di Biochimica e Biotecnologie Mediche, Università di Napoli "Federico II", 80131 Napoli, Italy
| | | | | | | | | |
Collapse
|
20
|
Synergic Effect of Genistein and Daidzein on UVB-Induced DNA Damage: An Effective Photoprotective Combination. J Biomed Biotechnol 2011; 2011:692846. [PMID: 21785564 PMCID: PMC3139128 DOI: 10.1155/2011/692846] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 03/11/2011] [Accepted: 05/19/2011] [Indexed: 11/17/2022] Open
Abstract
The anti-inflammatory effects and antioxidant activities of individual isoflavones are well established although little is known about the photoprotective effect of their combination. The aim of this study was to investigate the photoprotective effects of different concentrations of genistein and daidzein individually or combined. We measured the expression levels of the cyclo-oxygenase-2 (COX-2) and growth arrest and DNA-damage inducible (Gadd45) genes, which are involved in inflammation and DNA repair, respectively, in BJ-5ta human skin fibroblasts irradiated with 60 mJ/cm2 UVB. We also determined the cellular response to UVB-induced DNA damage by Comet assay. We report that genistein and daidzein when administered combined, and at a specific concentration and ratio, exerted a synergistic photoprotective effect that was greater than the effect obtained with each isoflavone alone. The results reported herein suggest that low concentrations of genistein and daidzein combined may be good candidate ingredients for protective agents against UV-induced photodamage.
Collapse
|
21
|
Iovine B, Iannella ML, Bevilacqua MA. Damage-specific DNA binding protein 1 (DDB1) is involved in ubiquitin-mediated proteolysis of p27Kip1 in response to UV irradiation. Biochimie 2011; 93:867-75. [DOI: 10.1016/j.biochi.2010.12.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Accepted: 12/26/2010] [Indexed: 11/15/2022]
|
22
|
Abstract
Dynamic interactions between cells and extracellular matrix (ECM) through integrins influence most cellular functions. Normal cells, but even more, tumor cells are subjected to different forms of stress, including ischemia, radical oxygen species production, starvation, mechanical stress or genotoxic insults due to anti-cancer drugs or irradiation. In these situations, an adaptative cellular response occurs, integrating a complex network of intracellular signaling modules, which, depending on stress intensity, may result to either damage repair followed by complete restitution of cellular functions, or programmed cell death. Because of its implication in oncogenesis and anti-cancer therapy, cellular stress response has been thoroughly investigated. However, most of these studies have been performed in the context of isolated cells without taking into consideration that most cells are part of the tissue within which they interact with ECM through integrin. Few studies have described the influence of stress on cell-to-ECM interaction. However, one can speculate that, in these conditions, cells could functionally interact with protein microenvironment either to create positive interactions to survive (for example by facilitating protective pathways) or negative interaction to die (for example by facilitating detachment). In this review, we summarize the knowledge relative to the influence of different stress modalities on ECM remodeling, integrin expression and/or function modifications, and possible functional consequences, independently from the cellular model as these findings came from a large variety of cells (mesenchymal, endothelial, muscular, epithelial and glandular) and fields of application (cancer, vascular biology and tissue engineering). Most studies support the general notion that non-lethal stress favors ECM stiffness, integrin activation and enhanced survival. This field opens large perspectives not only in tumor biology but also in anti-cancer therapy by targeting one or several steps of the integrin-mediated signaling pathway, including integrin ligation, or activation of integrin-linked enzymes or integrin adaptors.
Collapse
|
23
|
Onoue S, Nonaka R, Sato F, Koide C, Hayashi A, Wachi H. Involvement of Reactive Oxygen Species in Abnormal Tropoelastin Deposition Induced by UVA-Photosensitizers. ACTA ACUST UNITED AC 2009. [DOI: 10.1248/jhs.55.946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Risa Nonaka
- Department of Clinical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University
| | - Fumiaki Sato
- Department of Clinical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University
| | | | | | - Hiroshi Wachi
- Department of Clinical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University
| |
Collapse
|