Abstract
The human epidermis exerts immunoregulatory functions through the variety of cytokines and other molecules elaborated by keratinocytes and melanocytes. Their constitutive production is very low; however, considerably increased upon stimulation. In vivo, keratinocytes and melanocytes have a typical exposure in the skin, referred as melanocyte epidermal unit. In the present study we co-cultivated these cells in vitro proposing to elucidate some communication links in close cell-to-cell association. We assessed the amounts of IL-6, IL-8, and matrix metalloproteinases (MMP-2 and MMP-9) in individually and co-cultured cells, exposed or not to UVB radiation. Normal human epidermal keratinocytes and melanocytes were grown in specific media and supplements. Cells were exposed to UVB radiation (100 mJ/cm2) to create comparable stress to the environmental one. Cytokines were determined with ELISA and confirmed with Western blot and metalloproteinases with gel zimography. Pure cultures of keratinocytes and melanocytes released low amounts of cytokines and metalloproteinases, these secretions being enhanced by UVB irradiation. In co-cultures, the cell-to-cell proximity triggered signals which markedly augmented the cytokines’ secretions, whereas metalloproteinases were down-regulated. UVB irradiation did not influence either of these secretions in co-cultures. Concurrently with the highest levels of the pro-inflammatory cytokines, MMP-9 was up-regulated creating pro-inflammatory conditions and premises for changes in cellular survival, differentiation and phenotype. A complex network of interactions occurred between keratinocytes and melanocytes in co-cultures, resulting in modulated pro-inflammatory cytokines and metalloproteinases productions. Therefore, any disturbances in the microenvironmental signaling system and its molecular constituents may result in inflammation or even tumorigenesis in the epidermis.
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References
Bergers G, Brekken R, McMahon G, Vu TH, Itoh T, Tamaki K, Tanzawa K, Thorpe P, Itohara S, Werb Z, Hanahan D (2000) Matrix metalloproteinase-9 triggers the angiogenic switch during carcinogenesis. Nat Cell Biol 2(10):737–744
Boukamp P, Petrussevska RT, Breitkreutz D, Hornung J, Markham A, Fusenig NE (1988) Normal keratinization in a spontaneously immortalized aneuploid human keratinocyte cell line. J Cell Biol 106(3):761–771
Bradford MM (1976) A rapid and sensitive method for quantification of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem 72:248–254
Chung JH, Youn JI (1995) Effect of ultraviolet A on IL-1 production by ultraviolet B in cultured human keratinocytes. J Dermatol Sci 9(2):87–93
Chung JH, Youn SH, Koh WS, Eun HC, Cho KH, Park KC, Youn JI (1996) Ultraviolet B irradiation-enhanced interleukin (IL)-6 production and mRNA expression are mediated by IL-1 alpha in cultured human keratinocytes. J Invest Dermatol 106(4):715–720
Chung JH (2003) Photoaging in Asians. Photodermatol Photoimmunol Photomed 19:109–121
Cooper CD, David W (2009) Reliable Mechanisms for reaching the differentiated state: insights from neural crest-derived melanocytes. Sem Cell Dev Biol 20:105–110
Decean H, Orăsan R (2012) In vitro study regarding the role of keratinocytes and melanocytes in the secretion of IL-1α. ProEnvironment 5:120–124
Duval C, Régnier M, Schmidt R (2001) Distinct melanogenic response of human melanocytes in mono-culture, in co-culture with keratinocytes and in reconstructed epidermis, to UV exposure. Pigment Cell Res 14(5):348–355
Fitzpatrick TB, Breathnach AS (1963) The epidermal melanin unit system [Article in German]. Dermatol Wochenschr 147:481–489
Fukunaga-Kalabis M, Martinez G, Liu ZJ, Kalabis J, Mrass P, Weninger W, Firth SM, Planque N, Perbal B, Herlyn M (2006) CCN3 controls 3D spatial localization of melanocytes in the human skin through DDR1. J Cell Biol 175(4):563–569
Fukunaga-Kalabis M, Martinez G, Telson SM, Liu ZJ, Balint K, Juhasz I, Elder DE, Perbal B, Herlyn M (2008) Downregulation of CCN3 expression as a potential mechanism for melanoma progression. Oncogene 27(18):2552–2560
Fukunaga-Kalabis M, Santiago-Walker A, Herlyn M (2008) Matricellular proteins produced by melanocytes and melanomas: in search for functions. Cancer Microenviron 1(1):93–102
Granelli-Piperno A, Reich E (1978) A study of proteases and protease-inhibitor complexes in biological fluids. J Exp Med 148:223–234
Grossman RM, Krueger J, Yourish D, Granelli-Piperno A, Murphy DP, May LT, Kupper TS, Sehgal PB, Gottlieb AB (1989) Interleukin 6 is expressed in high levels in psoriatic skin and stimulates proliferation of cultured human keratinocytes. Proc Natl Acad Sci USA 86(16):6367–6371
Groves RW, Rauschmayr T, Nakamura K, Sarkar S, Williams IR, Kupper TS (1996) Inflammatory and hyperproliferative skin disease in mice that express elevated levels of the IL-1 receptor (type I) on epidermal keratinocytes. Evidence that IL-1-inducible secondary cytokines produced by keratinocytes in vivo can cause skin disease. J Clin Invest. 98(2):336–344
Gröne A (2002) Keratinocytes and cytokines—review. Vet Immunol Immunop 88(1–2):1–12
Hara M, Yaar M, Gilchrest BA (1995) Endothelin-1 of keratinocyte origin is a mediator of melanocyte dendricity. J Invest Dermatol 105(6):744–748
Hirobe T (2005) Role of keratinocyte-derived factors involved in regulating the proliferation and differentiation of mammalian epidermal melanocytes—review. Pigment Cell Res 18(1):2–12
Hunt G, Todd C, Thody AJ (1996) Unresponsiveness of human epidermal melanocytes to melanocyte-stimulating hormone and its association with red hair. Mol Cell Endocrinol 116(2):131–136
Joshi PG, Nair N, Begum G, Joshi NB, Sinkar VP, Vora S (2007) Melanocyte-keratinocyte interaction induces calcium signalling and melanin transfer to keratinocytes. Pigment Cell Res 20(5):380–384
Kondo S, Kono T, Sauder DN, McKenzie RC (1993) IL-8 gene expression and production in human keratinocytes and their modulation by UVB. J Invest Dermatol 101(5):690–694
Köck A, Schwarz T, Kirnbauer R, Urbanski A, Perry P, Ansel JC, Luger TA (1990) Human keratinocytes are a source for tumor necrosis factor alpha: evidence for synthesis and release upon stimulation with endotoxin or ultraviolet light. J Exp Med 172(6):1609–1614
Kupper TS, Chua AO, Flood P, McGuire J, Gubler U (1987) Interleukin 1 gene expression in cultured human keratinocytes is augmented by ultraviolet irradiation. J Clin Invest 80(2):430–436
Matrisian LM (1994) Matrix metalloproteinase gene expression. Ann NY Acad Sci 732:42–50
Matsue H, Cruz PD Jr, Bergstresser PR, Takashima A (1992) Cytokine expression by epidermal cell subpopulations. J Invest Dermatol 99:42S–45S
McQuibban GA, Gong JH, Wong JP, Wallace JL, Clark-Lewis I, Overall CM (2002) Matrix metalloproteinase processing of monocyte chemoattractant proteins generates CC chemokine receptor antagonists with anti-inflammatory properties in vivo. Blood 100(4):1160–1167
Mouchet N, Adamski H, Bouvet R, Corre S, Courbebaisse Y, Watier E, Mosser J, Chesné C, Galibert MD (2010) In vivo identification of solar radiation-responsive gene network: role of the p38 stress-dependent kinase. PLoS One 5(5):e10776
Pathak MA, Fitzpatrick TB, Greiter F, Kraus EW (1987) Preventive treatment of sunburn, dermatoheliosis, and skin cancer with sun-protective agents. In: Fitzpatrick TB, Eisen AZ, Wolff K, Freeberg IM, Austen KF (eds) Dermatology in general medicine, 3rd edn. McGraw-Hill Book Co, New York, pp 1507–1522
Perde-Schrepler M, Chereches G, Brie I, Virag P, Barbos O, Soritau O, Tatomir C, Fischer-Fodor E, Filip A, Vlase L, Postescu ID (2011) Photoprotective effect of Calluna vulgaris extract against uvb-induced phototoxicity in human immortalized keratinocytes. J Environ Pathol Toxicol 30(4):323–331
Pillai S, Oresajo C, Hayward J (2005) Ultraviolet radiation and skin aging: roles of reactive oxygen species, inflammation and protease activation, and strategies for prevention of inflammation-induced matrix degradation—a review. Int J Cosmet Sci 27:17–34
Roomi MW, Monterrey JC, Kalinovsky T, Rath M, Niedzwiecki A (2009) Distinct patterns of matrix metalloproteinase-2 and -9 expression in normal human cell lines. Oncol Rep 21(3):821–826
Saldana-Caboverde A, Kos L (2010) Roles of endothelin signaling in melanocyte development and melanoma. Pigm Cell Melanoma Res 23(2):160–170
Sauder DN (1990) The role of epidermal cytokines in inflammatory skin diseases—review. J Invest Dermatol 95(5 Suppl):27S–28S
Sternlicht MD, Werb Z (2001) How matrix metalloproteinases regulate cell behavior. Annu Rev Cell Dev Biol 17:463–516
Sulaimon SS, Kitchell BE (2003) The biology of melanocytes. Vet Dermatol 14(2):57–65
Takashima A, Bergstresser PR (1996) Impact of UVB radiation on the epidermal cytokine network—review. Photochem Photobiol 63(4):397–400
Taylor CR, Stern RS, Leyden JJ, Gilchrest BA (1990) Photoaging/photodamage and photoprotection. J Am Acad Dermatol 22:1–15
Todd C, Hewitt SD, Kempenaar J, Noz K, Thody AJ, Ponec M (1993) Co-culture of human melanocytes and keratinocytes in a skin equivalent model: effect of ultraviolet radiation. Arch Dermatol Res 285(8):455–459
Uchi H, Terao H, Koga T, Furue M (2000) Cytokines and chemokines in the epidermis. J Dermatol Sci 24(Suppl 1):S29–S38
Welch DR, Sakamaki T, Pioquinto R, Leonard TO, Goldberg SF, Hon Q, Erikson RL, Rieber M, Rieber MS, Hicks DJ, Bonventre JV, Alessandrini A (2000) Transfection of constitutively active mitogen-activated protein/extracellular signal-regulated kinase confers tumorigenic and metastatic potentials to NIH3T3 cells. Cancer Res 60(6):1552–1556
Xue M, Jackson CJ (2008) Autocrine actions of matrix metalloproteinase (MMP)-2 counter the effects of MMP-9 to promote survival and prevent terminal differentiation of cultured human keratinocytes. J Invest Dermatol 128(11):2676–2685
Yaar M, Eller MS, DiBenedetto P, Reenstra WR, Zhai S, McQuaid T, Archambault M, Gilchrest BA (1994) The trk family of receptors mediates nerve growth factor and neurotrophin-3 effects in melanocytes. J Clin Invest 94(4):1550–1562
Zachariae CO, Thestrup-Pedersen K, Matsushima K (1991) Expression and secretion of leukocyte chemotactic cytokines by normal human melanocytes and melanoma cells. J Invest Dermatol 97(3):593–599
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We gratefully acknowledge financial support from the Executive Unit for Financing Higher Education, Research, Development and Innovation (UEFISCDI), Romania, Code 140/2008, Contract nr. 2/2010.
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Decean, H., Perde-Schrepler, M., Tatomir, C. et al. Modulation of the pro-inflammatory cytokines and matrix metalloproteinases production in co-cultivated human keratinocytes and melanocytes. Arch Dermatol Res 305, 705–714 (2013). https://doi.org/10.1007/s00403-013-1353-6
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DOI: https://doi.org/10.1007/s00403-013-1353-6