1
|
Kobiela A, Frackowiak JE, Biernacka A, Hovhannisyan L, Bogucka AE, Panek K, Paul AA, Lukomska J, Wang X, Giannoulatou E, Krolicka A, Zielinski J, Deptula M, Pikula M, Gabrielsson S, Ogg GS, Gutowska-Owsiak D. Exposure of Keratinocytes to Candida Albicans in the Context of Atopic Milieu Induces Changes in the Surface Glycosylation Pattern of Small Extracellular Vesicles to Enhance Their Propensity to Interact With Inhibitory Siglec Receptors. Front Immunol 2022; 13:884530. [PMID: 35784319 PMCID: PMC9248261 DOI: 10.3389/fimmu.2022.884530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 05/02/2022] [Indexed: 12/13/2022] Open
Abstract
Candida albicans (C. albicans) infection is a potential complication in the individuals with atopic dermatitis (AD) and can affect clinical course of the disease. Here, using primary keratinocytes we determined that atopic milieu promotes changes in the interaction of small extracellular vesicles (sEVs) with dendritic cells and that this is further enhanced by the presence of C. albicans. sEV uptake is largely dependent on the expression of glycans on their surface; modelling of the protein interactions indicated that recognition of this pathogen through C. albicans-relevant pattern recognition receptors (PRRs) is linked to several glycosylation enzymes which may in turn affect the expression of sEV glycans. Here, significant changes in the surface glycosylation pattern, as determined by lectin array, could be observed in sEVs upon a combined exposure of keratinocytes to AD cytokines and C. albicans. This included enhanced expression of multiple types of glycans, for which several dendritic cell receptors could be proposed as binding partners. Blocking experiments showed predominant involvement of the inhibitory Siglec-7 and -9 receptors in the sEV-cell interaction and the engagement of sialic acid-containing carbohydrate moieties on the surface of sEVs. This pointed on ST6 β-Galactoside α-2,6-Sialyltransferase 1 (ST6GAL1) and Core 1 β,3-Galactosyltransferase 1 (C1GALT1) as potential enzymes involved in the process of remodelling of the sEV surface glycans upon C. albicans exposure. Our results suggest that, in combination with atopic dermatitis milieu, C. albicans promotes alterations in the glycosylation pattern of keratinocyte-derived sEVs to interact with inhibitory Siglecs on antigen presenting cells. Hence, a strategy aiming at this pathway to enhance antifungal responses and restrict pathogen spread could offer novel therapeutic options for skin candidiasis in AD.
Collapse
Affiliation(s)
- Adrian Kobiela
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Joanna E Frackowiak
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Anna Biernacka
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Lilit Hovhannisyan
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Aleksandra E Bogucka
- The Mass Spectrometry Laboratory, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Kinga Panek
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Argho Aninda Paul
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Joanna Lukomska
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Xinwen Wang
- State Key Laboratory of Military Stomatology, Department of Oral Medicine, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Medical Research Council (MRC) Human Immunology Unit, Medical Research Council (MRC) Weatherall Institute of Molecular Medicine, National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Eleni Giannoulatou
- Computational Biology Research Group, Weatherall Institute of Molecular Medicine (WIMM), University of Oxford, Oxford, United Kingdom
| | - Aleksandra Krolicka
- Laboratory of Biologically Active Compounds, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland
| | - Jacek Zielinski
- Department of Surgical Oncology, Medical University of Gdansk, Gdansk, Poland
| | - Milena Deptula
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland.,Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
| | - Michal Pikula
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
| | - Susanne Gabrielsson
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Graham S Ogg
- Medical Research Council (MRC) Human Immunology Unit, Medical Research Council (MRC) Weatherall Institute of Molecular Medicine, National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Danuta Gutowska-Owsiak
- Experimental and Translational Immunology Group, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, University of Gdansk, Gdansk, Poland.,Medical Research Council (MRC) Human Immunology Unit, Medical Research Council (MRC) Weatherall Institute of Molecular Medicine, National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| |
Collapse
|
2
|
Zielinski J, Jaworski R, Pikula M, Jaskiewicz J, Girnyi S, Palubicka A, But M. The Influence of Pre-Operative Chemo- and Radiotherapy in Patients with Colon Cancer on Wound Healing in the Material from a Single Center. Eur J Surg Oncol 2020. [DOI: 10.1016/j.ejso.2019.11.272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
3
|
Skowron PM, Krawczun N, Zebrowska J, Krefft D, Zołnierkiewicz O, Bielawa M, Jezewska-Frackowiak J, Janus L, Witkowska M, Palczewska M, Schumacher A, Wardowska A, Deptula M, Czupryn A, Mucha P, Piotrowski A, Sachadyn P, Rodziewicz-Motowidlo S, Pikula M, Zylicz-Stachula A. A vector-enzymatic DNA fragment amplification-expression technology for construction of artificial, concatemeric DNA, RNA and proteins for novel biomaterials, biomedical and industrial applications. Mater Sci Eng C Mater Biol Appl 2019; 108:110426. [PMID: 31923928 DOI: 10.1016/j.msec.2019.110426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 10/17/2019] [Accepted: 11/11/2019] [Indexed: 12/12/2022]
Abstract
A DNA fragment amplification/expression technology for the production of new generation biomaterials for scientific, industrial and biomedical applications is described. The technology enables the formation of artificial Open Reading Frames (ORFs) encoding concatemeric RNAs and proteins. It recruits the Type IIS SapI restriction endonuclease (REase) for an assembling of DNA fragments in an ordered head-to-tail-orientation. The technology employs a vector-enzymatic system, dedicated to the expression of newly formed, concatemeric ORFs from strong promoters. Four vector series were constructed to suit specialised needs. As a proof of concept, a model amplification of a 7-amino acid (aa) epitope from the S protein of HBV virus was performed, resulting in 500 copies of the epitope-coding DNA segment, consecutively linked and expressed in Escherichia coli (E. coli). Furthermore, a peptide with potential pro-regenerative properties (derived from an angiopoietin-related growth factor) was designed. Its aa sequence was back-translated, codon usage optimized and synthesized as a continuous ORF 10-mer. The 10-mer was cloned into the amplification vector, enabling the N-terminal fusion and multiplication of the encoded protein with MalE signal sequence. The obtained genes were expressed, and the proteins were purified. Conclusively, we show that the proteins are neither cytotoxic nor immunogenic and they have a very low allergic potential.
Collapse
Affiliation(s)
- Piotr M Skowron
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland; BioVentures Institute Ltd., Poznan 60-141, Poland.
| | - Natalia Krawczun
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland; BioVentures Institute Ltd., Poznan 60-141, Poland
| | - Joanna Zebrowska
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland; BioVentures Institute Ltd., Poznan 60-141, Poland
| | - Daria Krefft
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland; BioVentures Institute Ltd., Poznan 60-141, Poland
| | - Olga Zołnierkiewicz
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland
| | | | - Joanna Jezewska-Frackowiak
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland; BioVentures Institute Ltd., Poznan 60-141, Poland
| | - Lukasz Janus
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland; BioVentures Institute Ltd., Poznan 60-141, Poland
| | - Malgorzata Witkowska
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland
| | - Malgorzata Palczewska
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland
| | - Adriana Schumacher
- Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk 80-211, Poland; Department of Clinical Immunology and Transplantology, Faculty of Medicine, Medical University of Gdansk, 80-210, Poland
| | - Anna Wardowska
- Department of Clinical Immunology and Transplantology, Faculty of Medicine, Medical University of Gdansk, 80-210, Poland; Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Milena Deptula
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Artur Czupryn
- Nencki Institute of Experimental Biology, Warsaw 02-093, Poland
| | - Piotr Mucha
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdansk, 80-308, Poland
| | - Arkadiusz Piotrowski
- Department of Biology and Pharmaceutical Botany, Faculty of Pharmacy, Medical University of Gdansk, 80-416, Poland; International Research Agenda - 3P Medicine Lab, Medical University of Gdansk, 80-416, Poland
| | - Pawel Sachadyn
- Department of Molecular Biotechnology and Microbiology, Faculty of Chemistry, Gdansk University of Technology, Gdansk 80-233, Poland
| | | | - Michal Pikula
- Department of Clinical Immunology and Transplantology, Faculty of Medicine, Medical University of Gdansk, 80-210, Poland; Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Agnieszka Zylicz-Stachula
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland; BioVentures Institute Ltd., Poznan 60-141, Poland
| |
Collapse
|
4
|
Krzystyniak A, Baczynska E, Magnowska M, Antoniuk S, Roszkowska M, Zareba-Koziol M, Das N, Basu S, Pikula M, Wlodarczyk J. Prophylactic Ketamine Treatment Promotes Resilience to Chronic Stress and Accelerates Recovery: Correlation with Changes in Synaptic Plasticity in the CA3 Subregion of the Hippocampus. Int J Mol Sci 2019; 20:ijms20071726. [PMID: 30965559 PMCID: PMC6479955 DOI: 10.3390/ijms20071726] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/01/2019] [Accepted: 04/04/2019] [Indexed: 12/14/2022] Open
Abstract
Ketamine is an N-methyl-d-aspartate receptor antagonist that has gained wide attention as a potent antidepressant. It has also been recently reported to have prophylactic effects in animal models of depression and anxiety. Alterations of neuroplasticity in different brain regions; such as the hippocampus; prefrontal cortex; and amygdala; are a hallmark of stress-related disorders; and such changes may endure beyond the treatment of symptoms. The present study investigated whether a prophylactic injection of ketamine has effects on structural plasticity in the brain in mice that are subjected to chronic unpredictable stress followed by an 8-day recovery period. Ketamine administration (3 mg/kg body weight) 1 h before stress exposure increased the number of resilient animals immediately after the cessation of stress exposure and positively influenced the recovery of susceptible animals to hedonic deficits. At the end of the recovery period; ketamine-treated animals exhibited significant differences in dendritic spine density and dendritic spine morphology in brain regions associated with depression compared with saline-treated animals. These results confirm previous findings of the prophylactic effects of ketamine and provide further evidence of an association between the antidepressant-like effect of ketamine and alterations of structural plasticity in the brain
Collapse
Affiliation(s)
- Adam Krzystyniak
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
| | - Ewa Baczynska
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
- The Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka Street 44/52, 01-224 Warsaw, Poland.
| | - Marta Magnowska
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
| | - Svitlana Antoniuk
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
- Cellular Neurophysiology, Centre of Physiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
| | - Matylda Roszkowska
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
| | - Monika Zareba-Koziol
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
| | - Nirmal Das
- Department of Computer Science and Engineering, Jadvapur University, Kolkata 700032, India.
| | - Subhadip Basu
- Department of Computer Science and Engineering, Jadvapur University, Kolkata 700032, India.
| | - Michal Pikula
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, 80-211 Gdansk, Poland.
| | - Jakub Wlodarczyk
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.
| |
Collapse
|
5
|
Zielinski J, Jaworski R, Irga-Jaworska N, Pikula M, Hunerbein M, Jaskiewicz J. Use of fiberoductoscopy for the management of patients with pathological nipple discharge: experience of a single center in Poland. Breast Cancer 2018; 25:753-758. [PMID: 29938367 PMCID: PMC6208849 DOI: 10.1007/s12282-018-0883-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 06/21/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Pathological nipple discharge (PND) is associated with serious clinical and diagnostic issues. Fiberoductoscopy (FDS) is a new diagnostic option in PND patients. This study summarizes our initial experience of FDS for the management of PND patients in a single center in Poland and assesses its safety. METHODS A total of 256 women with PND were included in this prospective, case-controlled, single-center study between 2006 and 2014. Of the 250 patients who underwent FDS, 154 had mammary duct lesions and 96 had no visible lesions. Subsequently, 129 patients with lesions identified by FDS underwent microductectomy and the lesions were pathologically evaluated. RESULTS The mean duration of FDS examination was 17 min. The most frequent intraductal lesion was amputation of a duct (35.1%), followed by circular narrowing or hyperplasia (22.7%). Final histological findings were unremarkable in 11.6% of cases, whereas mammary duct papilloma, duct ectasia, and ductal carcinoma in situ were detected in 71.3, 10.9, and 6.2% of cases, respectively. CONCLUSIONS FDS is an innovative method for visualizing intraductal mammary lesions and allows accurate selection of mammary ducts with suspicious lesions that require surgical removal in women with PND.
Collapse
Affiliation(s)
- Jacek Zielinski
- Department of Surgical Oncology, Medical University of Gdansk, Smoluchowski Str 17, 80-214, Gdansk, Poland.
| | - Radoslaw Jaworski
- Department of Cardiac Surgery, Children's Health Memorial Institute, Warsaw, Poland
| | - Ninela Irga-Jaworska
- Department of Pediatrics, Hematology and Oncology, Medical University of Gdansk, Gdansk, Poland
| | - Michal Pikula
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Michael Hunerbein
- Department of General, Visceral and Cancer Surgery, Helios Klinikum Berlin-Buch, Berlin, Germany
| | - Janusz Jaskiewicz
- Department of Surgical Oncology, Medical University of Gdansk, Smoluchowski Str 17, 80-214, Gdansk, Poland
| |
Collapse
|
6
|
Mucha P, Pieszko M, Miszka A, Ruczynski J, Rekowski P, Zaluska I, Kozlowska A, Schumacher A, Deptula M, Pikula M. Ru(II)-mediated Synthesis and Bioactivity Evaluation of 1,4,5- trisubstituted N-phthalimido Protected 5-bromo-1,2,3-triazolic Amino Acid. LETT ORG CHEM 2018. [DOI: 10.2174/1570178614666170720112745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Piotr Mucha
- Faculty of Chemistry, University of Gdansk Wita Stwosza 63, Gdansk 80-308, Poland
| | - Malgorzata Pieszko
- Faculty of Chemistry, University of Gdansk Wita Stwosza 63, Gdansk 80-308, Poland
| | - Anna Miszka
- Faculty of Chemistry, University of Gdansk Wita Stwosza 63, Gdansk 80-308, Poland
| | - Jaroslaw Ruczynski
- Faculty of Chemistry, University of Gdansk Wita Stwosza 63, Gdansk 80-308, Poland
| | - Piotr Rekowski
- Faculty of Chemistry, University of Gdansk Wita Stwosza 63, Gdansk 80-308, Poland
| | - Izabela Zaluska
- Faculty of Chemistry, University of Gdansk Wita Stwosza 63, Gdansk 80-308, Poland
| | - Agnieszka Kozlowska
- Faculty of Chemistry, University of Gdansk Wita Stwosza 63, Gdansk 80-308, Poland
| | - Adriana Schumacher
- Department of Embryology, Medical University of Gdansk, Dębinki 1, Gdansk 80-211, Poland
| | - Milena Deptula
- Department of Embryology, Medical University of Gdansk, Dębinki 1, Gdansk 80-211, Poland
| | - Michal Pikula
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Dębinki 7, Gdansk 80-308, Poland
| |
Collapse
|
7
|
Strzelecka P, Czaplinska D, Sadej R, Wardowska A, Pikula M, Lesner A. Simplified, serine-rich theta-defensin analogues as antitumour peptides. Chem Biol Drug Des 2017; 90:52-63. [PMID: 28004513 DOI: 10.1111/cbdd.12927] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 12/05/2016] [Accepted: 12/10/2016] [Indexed: 01/15/2023]
Abstract
θ-defensins belong to the family of host defence peptides. They are the only known example of cyclic polypeptides in animal proteomes. This study presents the synthesis of simplified θ-defensin analogues with pairs of cysteine replaced either by alanine, leucine or serine residues. Cytotoxicity tests were performed on human mammary epithelial (HB2) and breast cancer (SKBR3, MDA-MB-231) cell lines to determine whether peptides are selectively targeting cancer cells. The effect of these peptides was also evaluated in 3D Matrigel cultures, which are based on extracellular matrix components and therefore closely represent in vivo conditions. Finally, to determine whether analogues are able to sensitize MDA-MB-231 triple-negative breast cancer cells to chemotherapeutics, we co-administrated peptides with cisplatin or doxorubicin hydrochloride also in 3D Matrigel cultures. Additionally, cytotoxicity towards peripheral blood mononuclear cells and haemolytic effect were examined for a chosen representative of synthesized compounds. The results showed that positively charged serine-containing θ-defensin derivatives were more cytotoxic towards breast cancer cells (SKBR3, MDA-MB-231) than towards mammary epithelial cells (HB2). Analogues enhanced the effect of cisplatin and doxorubicin hydrochloride on triple-negative breast cancer cell line (MDA-MB-231).
Collapse
Affiliation(s)
- Paulina Strzelecka
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Dominika Czaplinska
- Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Rafal Sadej
- Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Anna Wardowska
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Michal Pikula
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Adam Lesner
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| |
Collapse
|
8
|
Abstract
BACKGROUND Corticotropin-releasing hormone (CRH) is proposed to be involved in the regulation of the proliferative capacity of keratinocytes, based on its significant actions in the skin. These are mediated by CRH-R1alpha and represented by adenylate cyclase activation, Ca2+ influx, inhibition of cell proliferation and modifications in intracellular signal transduction by NF-kappaB. OBJECTIVES To define CRH action in the cell cycle we investigated its effects on the differentiation programme using the HaCaT keratinocytes model. METHODS HaCaT keratinocytes were incubated with CRH in Dulbecco's modified Eagles's medium (containing 1.8 mmol L(-1) calcium) or EpiLife (containing 0.06 mmol L(-1) calcium) medium. Cell proliferation was assessed with the MTT assay. Flow cytometry was used for the measurement of DNA content, cell size and granularity and the expression of cytokeratin 14, cytokeratin 1 and involucrin. The electrophoretic mobility shift assay was used to determine DNA binding activity by AP-1 transcription factor. Expression of cytokeratin 1 was also assessed with immunofluorescence microscopy. RESULTS CRH did produce inhibition of proliferation, which was dose-dependent; the shape of the inhibition curve was determined by the media calcium concentration. CRH action was pinpointed at inhibition of the G0/1 to the S phase transition of the cell cycle. CRH also increased AP-1 binding activity, cell granularity, cytokeratin 1 and involucrin expression, and inhibited cytokeratin 14 expression. CONCLUSIONS These results are consistent with CRH induction of the keratinocyte differentiation programme. Thus, the overall CRH cutaneous actions connote protective functions for the epidermis, that appear to include the triggering or acceleration of the differentiation programme.
Collapse
Affiliation(s)
- B. Zbytek
- Department of Histology and Immunology, Medical University of Gdansk, Gdansk, Poland
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, 930 Madison Avenue, RM519, Memphis, TN 38163, U.S.A
| | - M. Pikula
- Department of Histology and Immunology, Medical University of Gdansk, Gdansk, Poland
| | - R.M. Slominski
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, 930 Madison Avenue, RM519, Memphis, TN 38163, U.S.A
| | - A. Mysliwski
- Department of Histology and Immunology, Medical University of Gdansk, Gdansk, Poland
| | - E. Wei
- School of Public Health, University of California, Berkeley, CA, U.S.A
| | - J. Wortsman
- Department of Medicine, Southern Illinois University, Springfield, IL, U.S.A
| | - A.T. Slominski
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, 930 Madison Avenue, RM519, Memphis, TN 38163, U.S.A
- CorrespondenceAndrzej Slominski. E-mail:
| |
Collapse
|