1
|
Si W, Li M, Wang K, Li J, Xu M, Zhou X, Bai J, Qu Z, Song G, Wu X, Guo Y, Hu H, Fu D, Yang Z, Wu M, Yan D, Song X, Tian Z. Staphylococcus warneri strain XSB102 exacerbates psoriasis and promotes keratinocyte proliferation in imiquimod-induced psoriasis-like dermatitis mice. Arch Microbiol 2023; 206:3. [PMID: 37991548 DOI: 10.1007/s00203-023-03726-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/19/2023] [Accepted: 10/29/2023] [Indexed: 11/23/2023]
Abstract
Psoriasis is one of the common chronic inflammatory skin diseases worldwide. The skin microbiota plays a role in psoriasis through regulating skin homeostasis. However, the studies on the interactions between symbiotic microbial strains and psoriasis are limited. In this study, Staphylococcus strain XSB102 was isolated from the skin of human, which was identified as Staphylococcus warneri using VITEK2 Compact. To reveal the roles of Staphylococcus warneri on psoriasis, XSB102 were applied on the back of imiquimod-induced psoriasis-like dermatitis mice. The results indicated that it exacerbated the psoriasis and significantly increased the thickening of the epidermis. Furthermore, in vitro experiments confirmed that inactivated strain XSB102 could promote the proliferation of human epidermal keratinocytes (HaCaT) cell. However, real-time quantitative PCR and immunofluorescence results suggested that the expression of inflammatory factors such as IL-17a, IL-6, and so on were not significantly increased, while extracellular matrix related factors such as Col6a3 and TGIF2 were significantly increased after XSB102 administration. This study indicates that Staphylococcus warneri XSB102 can exacerbate psoriasis and promote keratinocyte proliferation independently of inflammatory factors, which paves the way for further exploration of the relationship between skin microbiota and psoriasis.
Collapse
Affiliation(s)
- Wenhao Si
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
- Department of Dermatology, the First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Min Li
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Kuan Wang
- Department of Dermatology, the First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Jialin Li
- Department of Dermatology, the First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Mengke Xu
- Department of Immunology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Xiaoyue Zhou
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Jie Bai
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Zhiyuan Qu
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Guoyan Song
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Xueya Wu
- Department of Immunology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Yuqi Guo
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Hua Hu
- Department of Dermatology, the First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Dandan Fu
- Department of Dermatology, the First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Zishan Yang
- Department of Immunology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Minna Wu
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China
| | - Dong Yan
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China.
| | - Xiangfeng Song
- Department of Immunology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China.
| | - Zhongwei Tian
- Department of Dermatology, the First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, China.
| |
Collapse
|
2
|
Schürmann M, Oppel F, Shao S, Volland-Thurn V, Kaltschmidt C, Kaltschmidt B, Scholtz LU, Sudhoff H. Chronic inflammation of middle ear cholesteatoma promotes its recurrence via a paracrine mechanism. Cell Commun Signal 2021; 19:25. [PMID: 33627146 PMCID: PMC7903614 DOI: 10.1186/s12964-020-00690-y] [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: 09/10/2020] [Accepted: 11/23/2020] [Indexed: 12/02/2022] Open
Abstract
Background Cholesteatoma disease is an expanding lesion in the middle ear. Hearing loss and facial paralysis alongside with other intracranial complications are found. No pharmaceutical treatment is available today and recurrence after surgical extraction occurs. We investigated possible TLR4-based mechanisms promoting recurrence and explore possible treatments strategies. Methods We isolated fibroblasts and epidermal stem cells from cholesteatoma tissue and healthy auditory canal skin. Subsequently, their expression under standard culture conditions and after stimulation with LPS was investigated by RT-qPCR. Cell metabolism and proliferation were analysed upon LPS treatment, with and without TLR4 antagonist. An indirect co-culture of fibroblasts and epidermal stem cells isolated from cholesteatoma tissue was utilized to monitor epidermal differentiation upon LPS treatment by RT-qPCR and immunocytochemistry. Results Under standard culture conditions, we detected a tissue-independent higher expression of IL-1β and IL-8 in stem cells, an upregulation of KGF and IGF-2 in both cell types derived from cholesteatoma and higher expression of TLR4 in stem cells derived from cholesteatoma tissue. Upon LPS challenge, we could detect a significantly higher expression of IL-1α, IL-1β, IL-6 and IL-8 in stem cells and of TNF-a, GM-CSF and CXCL-5 in stem cells and fibroblasts derived from cholesteatoma. The expression of the growth factors KGF, EGF, EREG, IGF-2 and HGF was significantly higher in fibroblasts, particularly when derived from cholesteatoma. Upon treatment with LPS the metabolism was elevated in stem cells and fibroblasts, proliferation was only enhanced in fibroblasts derived from cholesteatoma. This could be reversed by the treatment with a TLR4 antagonist. The cholesteatoma fibroblasts could be triggered by LPS to promote the epidermal differentiation of the stem cells, while no LPS treatment or LPS treatment without the presence of fibroblasts did not result in such a differentiation. Conclusion We propose that cholesteatoma recurrence is based on TLR4 signalling imprinted in the cholesteatoma cells. It induces excessive inflammation of stem cells and fibroblasts, proliferation of perimatrix fibroblasts and the generation of epidermal cells from stem cells thru paracrine signalling by fibroblasts. Treatment of the operation site with a TLR4 antagonist might reduce the chance of cholesteatoma recurrence. ![]()
Video Abstract
Collapse
Affiliation(s)
- Matthias Schürmann
- Department of Otolaryngology, Head and Neck Surgery, Medical School OWL Campus Klinikum Bielefeld, Bielefeld University, Teutoburger Str. 50, 33604, Bielefeld, Germany
| | - Felix Oppel
- Department of Otolaryngology, Head and Neck Surgery, Medical School OWL Campus Klinikum Bielefeld, Bielefeld University, Teutoburger Str. 50, 33604, Bielefeld, Germany
| | - Senyao Shao
- Department of Otolaryngology, Head and Neck Surgery, Medical School OWL Campus Klinikum Bielefeld, Bielefeld University, Teutoburger Str. 50, 33604, Bielefeld, Germany
| | - Verena Volland-Thurn
- Department of Otolaryngology, Head and Neck Surgery, Medical School OWL Campus Klinikum Bielefeld, Bielefeld University, Teutoburger Str. 50, 33604, Bielefeld, Germany
| | | | - Barbara Kaltschmidt
- Department of Cell Biology, Bielefeld University , 33619, Bielefeld, Germany
| | - Lars-Uwe Scholtz
- Department of Otolaryngology, Head and Neck Surgery, Medical School OWL Campus Klinikum Bielefeld, Bielefeld University, Teutoburger Str. 50, 33604, Bielefeld, Germany
| | - Holger Sudhoff
- Department of Otolaryngology, Head and Neck Surgery, Medical School OWL Campus Klinikum Bielefeld, Bielefeld University, Teutoburger Str. 50, 33604, Bielefeld, Germany.
| |
Collapse
|
3
|
Lemoine L, Dieckmann R, Al Dahouk S, Vincze S, Luch A, Tralau T. Microbially competent 3D skin: a test system that reveals insight into host-microbe interactions and their potential toxicological impact. Arch Toxicol 2020; 94:3487-3502. [PMID: 32681188 PMCID: PMC7502063 DOI: 10.1007/s00204-020-02841-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 07/09/2020] [Indexed: 02/06/2023]
Abstract
The skin`s microbiome is predominantly commensalic, harbouring a metabolic potential far exceeding that of its host. While there is clear evidence that bacteria-dependent metabolism of pollutants modulates the toxicity for the host there is still a lack of models for investigating causality of microbiome-associated pathophysiology or toxicity. We now report on a biologically characterised microbial-skin tissue co-culture that allows studying microbe-host interactions for extended periods of time in situ. The system is based on a commercially available 3D skin model. In a proof-of-concept, this model was colonised with single and mixed cultures of two selected skin commensals. Two different methods were used to quantify the bacteria on the surface of the skin models. While Micrococcus luteus established a stable microbial-skin tissue co-culture, Pseudomonas oleovorans maintained slow continuous growth over the 8-day cultivation period. A detailed skin transcriptome analysis showed bacterial colonisation leading to up to 3318 significant changes. Additionally, FACS, ELISA and Western blot analyses were carried out to analyse secretion of cytokines and growth factors. Changes found in colonised skin varied depending on the bacterial species used and comprised immunomodulatory functions, such as secretion of IL-1α/β, Il-6, antimicrobial peptides and increased gene transcription of IL-10 and TLR2. The colonisation also influenced the secretion of growth factors such as VFGFA and FGF2. Notably, many of these changes have already previously been associated with the presence of skin commensals. Concomitantly, the model gained first insights on the microbiome's influence on skin xenobiotic metabolism (i.e., CYP1A1, CYP1B1 and CYP2D6) and olfactory receptor expression. The system provides urgently needed experimental access for assessing the toxicological impact of microbiome-associated xenobiotic metabolism in situ.
Collapse
Affiliation(s)
- Lisa Lemoine
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany.
| | - Ralf Dieckmann
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Sascha Al Dahouk
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Szilvia Vincze
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Tewes Tralau
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| |
Collapse
|
4
|
Ruffin M, Brochiero E. Repair Process Impairment by Pseudomonas aeruginosa in Epithelial Tissues: Major Features and Potential Therapeutic Avenues. Front Cell Infect Microbiol 2019; 9:182. [PMID: 31214514 PMCID: PMC6554286 DOI: 10.3389/fcimb.2019.00182] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 05/13/2019] [Indexed: 01/13/2023] Open
Abstract
Epithelial tissues protecting organs from the environment are the first-line of defense against pathogens. Therefore, efficient repair mechanisms after injury are crucial to maintain epithelial integrity. However, these healing processes can be insufficient to restore epithelial integrity, notably in infectious conditions. Pseudomonas aeruginosa infections in cutaneous, corneal, and respiratory tract epithelia are of particular concern because they are the leading causes of hospitalizations, disabilities, and deaths worldwide. Pseudomonas aeruginosa has been shown to alter repair processes, leading to chronic wounds and infections. Because of the current increase in the incidence of multi-drug resistant isolates of P. aeruginosa, complementary approaches to decrease the negative impact of these bacteria on epithelia are urgently needed. Here, we review the recent advances in the understanding of the impact of P. aeruginosa infections on the integrity and repair mechanisms of alveolar, airway, cutaneous and corneal epithelia. Potential therapeutic avenues aimed at counteracting this deleterious impact of infection are also discussed.
Collapse
Affiliation(s)
- Manon Ruffin
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada.,Département de Médecine, Université de Montréal, Montréal, QC, Canada.,INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France
| | - Emmanuelle Brochiero
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada.,Département de Médecine, Université de Montréal, Montréal, QC, Canada
| |
Collapse
|
5
|
Chaney SB, Ganesh K, Mathew-Steiner S, Stromberg P, Roy S, Sen CK, Wozniak DJ. Histopathological comparisons of Staphylococcus aureus and Pseudomonas aeruginosa experimental infected porcine burn wounds. Wound Repair Regen 2017; 25:541-549. [PMID: 28466497 DOI: 10.1111/wrr.12527] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 02/21/2017] [Indexed: 12/17/2022]
Abstract
Chronic skin wounds are a significant human health concern and are often complicated by infection with Pseudomonas aeruginosa and Staphylococcus aureus, particularly methicillin resistant S. aureus (MRSA). Translating the knowledge gained from extensive study of virulence mechanisms and pathogenesis of these bacterial species to new treatment modalities has been lacking in part due to a paucity of animal models able to recapitulate human disease. Our groups recently described a novel porcine chronic burn wound model for the study of bacterial infection; however, the histopathology of infection has yet to be described. The objective of this study is to define the histopathology of this model using important human chronic wound bacterial isolates. Porcine full-thickness burn wounds topically inoculated with P. aeruginosa strain PAO1, MRSA S. aureus strain USA300 or both bacteria were used to define and quantify histopathologic lesions. The development of a systemic, well-defined rubric for analysis allowed for evaluation of differences between infection groups. These differences, which included epithelial migration and proliferation, stromal necrosis, fluid accumulation and intensity and character of the innate and adaptive inflammatory cell responses, were identified temporally between infection groups. Mono-species infected wounds developed a hyper-proliferative wound edge. Coinfected wounds at day 35 had the largest wound sizes, increased amounts of neutrophilic inflammation, immaturity of the wound bed, and retention of necrotic tissue. Infection, regardless of species, inhibited wound contracture at all time points evaluated. Most importantly, this model recapitulated key features of chronic human wounds. Thus, this model will allow researchers to study novel treatment modalities in a biologically relevant animal model while monitoring both host and bacterial responses.
Collapse
Affiliation(s)
- Sarah B Chaney
- Department of Veterinary Bioscience, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio.,Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio
| | - Kasturi Ganesh
- Department of Surgery, Comprehensive Wound Center, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Shomita Mathew-Steiner
- Department of Surgery, Comprehensive Wound Center, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Paul Stromberg
- Department of Veterinary Bioscience, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
| | - Sashwati Roy
- Department of Surgery, Comprehensive Wound Center, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Chandan K Sen
- Department of Surgery, Comprehensive Wound Center, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Daniel J Wozniak
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio
| |
Collapse
|
6
|
Lipoxin A4 inhibits proliferation and inflammatory cytokine/chemokine production of human epidermal keratinocytes associated with the ERK1/2 and NF-κB pathways. J Dermatol Sci 2015; 78:181-8. [DOI: 10.1016/j.jdermsci.2015.03.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 03/03/2015] [Accepted: 03/09/2015] [Indexed: 12/16/2022]
|
7
|
Indomethacin Sensitizes TRAIL-Resistant Melanoma Cells to TRAIL-Induced Apoptosis through ROS-Mediated Upregulation of Death Receptor 5 and Downregulation of Survivin. J Invest Dermatol 2014; 134:1397-1407. [DOI: 10.1038/jid.2013.471] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 09/24/2013] [Accepted: 10/13/2013] [Indexed: 02/07/2023]
|
8
|
Kipanyula MJ, Seke Etet PF, Vecchio L, Farahna M, Nukenine EN, Nwabo Kamdje AH. Signaling pathways bridging microbial-triggered inflammation and cancer. Cell Signal 2012; 25:403-16. [PMID: 23123499 DOI: 10.1016/j.cellsig.2012.10.014] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 10/26/2012] [Indexed: 02/06/2023]
Abstract
Microbial-triggered inflammation protects against pathogens and yet can paradoxically cause considerable secondary damage to host tissues that can result in tissue fibrosis and carcinogenesis, if persistent. In addition to classical pathogens, gut microbiota bacteria, i.e. a group of mutualistic microorganisms permanently inhabiting the gastrointestinal tract and which plays a key role in digestion, immunity, and cancer prevention, can induce inflammation-associated cancer following the alterations of their microenvironment. Emerging experimental evidence indicates that microbiota members like Escherichia coli and several other genotoxic and mutagenic pathogens can cause DNA damage in various cell types. In addition, the inflammatory response induced by chronic infections with pathogens like the microbiota members Helicobacter spp., which have been associated with liver, colorectal, cervical cancers and lymphoma, for instance, can also trigger carcinogenic processes. A microenvironment including active immune cells releasing high amounts of inflammatory signaling molecules can favor the carcinogenic transformation of host cells. Pivotal molecules released during immune response such as the macrophage migration inhibitory factor (MMIF) and the reactive oxygen and nitrogen species' products superoxide and peroxynitrite, can further damage DNA and cause the accumulation of oncogenic mutations, whereas pro-inflammatory cytokines, adhesion molecules, and growth factors may create a microenvironment promoting neoplastic cell survival and proliferation. Recent findings on the implication of inflammatory signaling pathways in microbial-triggered carcinogenesis as well as the possible role of microbiota modulation in cancer prevention are herein summarized and discussed.
Collapse
Affiliation(s)
- Maulilio John Kipanyula
- Department of Veterinary Anatomy, Sokoine University of Agriculture, P.O. Box 3016, Chuo Kikuu, Morogoro, Tanzania
| | | | | | | | | | | |
Collapse
|
9
|
Caicedo-Granados EE, Wuertz BR, Ondrey FG. Enforced expression of nuclear factor kappa B in p53 deficient keratinocytes induces cell cycle, angiogenic potential and tumorigenesis. Oral Oncol 2012; 48:303-10. [DOI: 10.1016/j.oraloncology.2011.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 10/14/2011] [Accepted: 11/09/2011] [Indexed: 11/16/2022]
|
10
|
Paolillo R, Romano Carratelli C, Sorrentino S, Mazzola N, Mita L, Rizzo A. Expression of IL-23, VEGF and TLR2/TLR4 on mononuclear cells after exposure to Pseudomonas aeruginosa. Int J Immunopathol Pharmacol 2012; 24:961-73. [PMID: 22230402 DOI: 10.1177/039463201102400414] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pseudomonas aeruginosa is a Gram-negative, aerobic bacillus causing infections of the respiratory and other organ systems in susceptible hosts. Although it does not cause pulmonary infections in immunocompetent individuals, P. aeruginosa causes chronic lung infection in individuals with cystic fibrosis and nosocomial pneumonia resulting in significant morbidity and mortality. Exogenous administration of an important P. aeruginosa virulence factor, lipase, present in P. aeruginosa culture supernatant, induces potent mononuclear cell activation leading to the production of numerous proinflammatory cytokines. In particular, P. aeruginosa culture supernatant stimulated increased proliferation of THP-1 cells and monocytes (MN). The addition of culture supernatant to THP-1 cells and MN also induced Interleukin (IL)-23 and vascular endothelial growth factor (VEGF) release in a time-dependent manner. To investigate whether any compounds present in the supernatant lipase contributed to releasing IL-23 and VEGF, the culture supernatant from P. aeruginosa containing lipase was treated with hexadecylsulfonylfluoride (AMSF). The AMSF-treated culture supernatant (CS) did not show any induction on the IL-23 and VEGF release compared to the cells treated with CS without AMSF. We also showed that Toll-like receptors (TLR)2/TLR4 are expressed in THP-1 cells and MN treated with P. aeruginosa CS in a time-dependent fashion. Flow cytometry analysis revealed a higher TLR4 and a lower TLR2 expression at 48 and 72 h of treatment. The treatment of cells with TLR4 neutralizing antibody, and to a lesser extent with TLR2 neutralizing antibody, resulted in a decrease in P. aeruginosa CS-induced IL-23 and VEGF production.
Collapse
Affiliation(s)
- R Paolillo
- Department of Experimental Medicine, Second University of Naples, Naples, Italy
| | | | | | | | | | | |
Collapse
|
11
|
Biology of cholesteatoma: special considerations in pediatric patients. Int J Pediatr Otorhinolaryngol 2012; 76:319-21. [PMID: 22264818 DOI: 10.1016/j.ijporl.2011.12.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 12/17/2011] [Indexed: 12/12/2022]
Abstract
Cholesteatoma is a unique pathologic condition of the temporal bone characterized by migration of keratinized squamous epithelium positioned into the middle ear and mastoid cavity. The exact pathogenic molecular mechanisms behind the formation and propagation of cholesteatoma remain unclear. This review will aim to define the classification of cholesteatomas, review the most accepted pathogenesis theories, describe the inherent molecular mechanisms dictating the hyperproliferative nature of cholesteatoma keratinocytes, and explore innate biological differences between pediatric and adult cholesteatoma.
Collapse
|
12
|
J. Verspohl E, Podlogar J. LPS-Induced Proliferation and Chemokine Secretion from BEAS-2B Cells. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/pp.2012.32024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
13
|
Rohrer J, Wuertz BRK, Ondrey F. Cigarette smoke condensate induces nuclear factor kappa-b activity and proangiogenic growth factors in aerodigestive cells. Laryngoscope 2010; 120:1609-13. [DOI: 10.1002/lary.20972] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
14
|
Castro P, Nasser H, Abrahão A, Dos Reis LC, Riça I, Valença SS, Rezende DC, Quintas LEM, Cavalcante MCM, Porto LC, Koatz VLG. Aspirin and indomethacin reduce lung inflammation of mice exposed to cigarette smoke. Biochem Pharmacol 2009; 77:1029-39. [PMID: 19161990 DOI: 10.1016/j.bcp.2008.12.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 12/09/2008] [Accepted: 12/11/2008] [Indexed: 01/04/2023]
Abstract
Neutrophil accumulation response to cigarette smoke (CS) in humans and animal models is believed to play an important role in pathogenesis of many tobacco-related lung diseases. Here we evaluated the lung anti-inflammatory effect of aspirin and indomethacin in mice exposed to CS. C57BL/6 mice were exposed to four cigarettes per day during 4 days and were treated i.p. with aspirin or indomethacin, administered each day 1h before CS exposure. Twenty four hours after the last exposure, cells and inflammatory mediators were assessed in bronchoalveolar lavage (BAL) fluid and the lungs used for evaluation of lipid peroxidation, p38 mitogen-activated protein kinase (MAPK) phosphorylation and nuclear transcription factor kappaB (NF-kappaB) activation. Exposure to CS resulted in a marked lung neutrophilia. Moreover, the levels of oxidative stress-related lipid peroxidation, prostaglandin E(2) (PGE(2)), interleukin 1beta (IL-1beta), monocyte chemotactic protein 1 (MCP-1), and activated NF-kappaB and p38 MAPK were greatly increased in CS group. Aspirin or indomethacin treatment led to a significant reduction of neutrophil influx, but only aspirin resulted in dramatic decrease of inflammatory mediators. Moreover, both drugs reduced lung p38 MAPK and NF-kappaB activation induced by CS. These results demonstrate that short-term CS exposure has profound airway inflammatory effects counteracted by the anti-inflammatory agents aspirin and indomethacin, probably through COX-dependent and -independent mechanisms.
Collapse
Affiliation(s)
- Paulo Castro
- Instituto de Bioquímica Médica, Universidade Federal do Rio de Janeiro, Brazil
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Abstract
OBJECTIVES/HYPOTHESIS It is well known that invasion is a seminal event in the progression of oral and other head and neck carcinoma sites. We have previously demonstrated tumor necrosis factor (TNF)-alpha and its dependent cytokines are upregulated in saliva during oral carcinogenesis. TNF-dependent events stimulate nuclear factor (NF)-kappaB and many NF-kappaB-dependent genes are associated with cancer progression. MATERIALS AND METHODS In the present study, we examined NF-kappaB stimulation of matrix metalloproteinase (MMP)-9 in a precancerous keratinocyte cell line that models leukoplakia (Rhek cells). We stimulated Rhek cells with both TNF-alpha and phorbol myristate acetate, known stimulants of NF-kappaB. We then assayed MMP-9 transcription and secretion by luciferase reporter genes, quantitative real-time polymerase chain reaction, and fluorometric enzyme-linked immunosorbent serologic assay. RESULTS We discovered that the MMP-9 promoter was significantly stimulated by phorbol myristate acetate and TNF-alpha on luciferase reporter gene assays. Further, we uncovered that functional MMP-9 promoter activation was accompanied by significant increases in MMP-9 gene expression, as judged by quantitative real-time polymerase chain reaction. Functional activation of the MMP-9 protein was stimulated by TNF-alpha and PMA on a fluorescent enzyme-linked immunosorbent serologic assay. Finally, we searched our salivary proteomic database for increases in MMP-9 and discovered it was the third most significant protein in salivas of oral cavity cancer patients over normal controls. CONCLUSIONS We conclude the milieu cytokine, TNF-alpha, has the capacity to provide stimulation of events related to early invasion of oral cavity cancer, as judged by its ability to stimulate MMP-9.
Collapse
|
16
|
Abstract
Several recent studies have identified nuclear factor-kappaB as a key modulator in driving inflammation to cancers. Besides this transcription factor, essential in regulating inflammation and cancer development, an inflammatory microenvironment inhabiting various inflammatory cells and a network of signaling molecules are also indispensable for the malignant progression of transformed cells, which is attributed to the mutagenic predisposition of persistent infection-fighting agents at sites of chronic inflammation. As a subverted host response to inflammation-induced tumors, the inflammatory cells and regulators may facilitate angiogenesis and promote the growth, invasion, and metastasis of tumor cells. Thus far, research regarding inflammation-associated cancer development has focused on cytokines and chemokines as well as their downstream targets in linking inflammation and cancer. Moreover, other proteins with extensive roles in inflammation and cancer, such as signal transducers and activators of transcription, Nrf2, and nuclear factor of activated T cells, are also proposed to be promising targets for future studies. The elucidation of their specific effects and interactions will accelerate the development of novel therapeutic interventions against cancer development triggered by inflammation.
Collapse
Affiliation(s)
- Haitian Lu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, 57 Old Forge Road, Tuxedo, NY 10987, USA
| | | | | |
Collapse
|
17
|
Bäumer W, Krekeler S, DeVries VC, Niedorf F, Tschernig T, Kietzmann M. Non-steroidal and steroidal anti-inflammatory drugs vary in their modulation of dendritic cell function in the elicitation phase of allergic contact dermatitis. Exp Dermatol 2006; 15:322-9. [PMID: 16512880 DOI: 10.1111/j.0906-6705.2006.00412.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The role of dendritic cells (DCs) in allergic contact dermatitis has been clearly demonstrated for the induction phase. However, the situation during the elicitation phase is very complex within a distinct inflammatory response. This study was performed to exploit DC migration in the elicitation phase in a mouse model of allergic contact dermatitis and to evaluate the effects of steroidal and non-steroidal anti-inflammatory drugs (NSAIDs) on DC migration through skin in the elicitation phase of allergic contact dermatitis. Topically and systemically administered acetylsalicylic acid (ASA) did not reduce the inflammatory response. However, systemically administered ASA significantly reduced the DC migration to the draining lymph node. In contrast, topically administered indomethacin reduced the inflammatory response, but had only minor effects on DC migration, whereas diflorasone diacetate reduced both inflammatory reaction and DC migration. Thus, NSAIDs may differ in their inhibitory action in immunological inflammation.
Collapse
Affiliation(s)
- W Bäumer
- Department of Pharmacology, Toxicology, and Pharmacy, University of Veterinary Medicine Hannover, Germany.
| | | | | | | | | | | |
Collapse
|