Abstract
The pathogenesis of acne is complex, with strong evidence supporting the involvement of sebaceous hyperplasia, follicular hyperkeratinisation, bacterial hypercolonisation, as well as immune reactions and inflammation. High sebum concentrations and follicular hyperkeratinisation lead to a change of the follicular milieu with consecutive proliferation of bacteria, chiefly Propionibacterium acnes. This leads to further increased production of the pro-inflammatory cytokines interleukin-1α and tumour necrosis factor α by T cells and keratinocytes, leading to proliferation of both cell types. Follicular keratinocytes fail to differentiate by apoptosis and produce hypergranulosis similar to the impermeable skin outer layer, resulting in the formation of microcomedones. Further inflammatory responses lead to the development of increasing degrees of severity in inflammatory forms of acne.
Retinoids aid the differentiation and reduce the hyperproliferation of keratinocytes, and can inhibit the migration of leucocytes. Combination therapy using retinoids plus benzoyl peroxide or antibacterials can treat existing acne lesions faster than the individual agents alone and can also prevent the development of new lesions. The new retinoids (e.g. adapalene) have not only the typical potent comedolytic activity but also anti-inflammatory effects. When added to antibacterial therapy, topical retinoids demonstrate faster and significantly greater reduction of inflammatory acne lesions and comedones than antibacterials alone.
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References
White GM. Recent findings in the epidemiology, classification and subtypes of acne vulgaris. J Am Acad Dermatol 1998 Aug; 39 (2 Pt 3): 534–7
Kelly AP. Acne and related disorders. In: Sams WMJ, Lynch PJ, editors. Principles and practice of dermatology. New York: Churchill Livingstone, 1996: 801–18
Clark SM, Goulden V, Finlay AY, et al. The psychological and social impact of acne: a comparison study using three acne disability questionnaires [abstract]. Br J Dermatol 1997; 137 Suppl. 50: 41
Gupta MA, Johnson AM, Gupta AK. The development of an acne quality of life scale: reliability, validity, and relation to subjective acne severity in mild to moderate acne vulgaris. Acta Derm Venereol (Stockh) 1998; 78: 451–6
Cotterrill JA, Cunliffe WJ. Suicide in dermatological patients. Br J Dermatol 1997 Aug; 137(2): 246–50
Gupta MA, Gupta AK. Depression and suicidal ideation in dermatology patients with acne, alopecia areata, atopic dermatitis and psoriasis. Br J Dermatol 1998 Nov; 139(5): 846–50
Lasek RJ, Chren M. Acne vulgaris and the quality of life of adult dermatology patients. Arch Dermatol 1998 Apr; 134(4): 454–8
Cunliffe WJ. Acne and unemployment [letter]. Br J Dermatol 1986 Sep; 115(3): 386
Shalita AR. Clinical aspects of acne. Dermatology 1998; 196(1): 93–4
Cunliffe WJ, Gollnick H. Acne diagnosis and management. London: Martin Dunitz, 2001
Deplewski D, Rosenfield RL. Role of hormones in pilosebaceous unit development. Endocr Rev 2000 Aug; 21(4): 363–92
Zouboulis CC. Human skin: an independent peripheral endocrine organ. Horm Res 2000; 54(5–6): 230–42
Plewig G, Kligman AM. Acne and rosacea. 3rd ed. New York: Springer-Verlag, 2000
Gollnick HP, Zouboulis CC, Akamatsu H, et al. Pathogenesis and pathogenesis related treatment of acne. J Dermatol 1991 Sep; 18(9): 489–99
Thiboutot D, Knaggs H, Gilliland K, et al. Activity of 5-alpha-reductase and 17-beta-hydroxysterid dehydrogenase in the infrainfundibulum of subjects with and without acne vulgaris. Dermatology 1998; 196(1): 38–42
Zouboulis CC, Xia L, Akamatsu H, et al. The human sebocyte culture model provides new insights into development and management of seborrhoea and acne. Dermatology 1998; 196(1): 21–31
Turksen K, Troy TC. Epidermal cell lineage. Biochem Cell Biol 1998; 76(6): 889–98
Pierard GE, Goffin V, Hermanns-Le T, et al. Corneocyte desquamation. Int J Mol Med 2000 Aug; 6(2): 217–21
Cunliffe WJ, Holland DB, Clark SM, et al. Comedogenesis: some new aetiological, clinical and therapeutic strategies. Br J Dermatol 2000 Jun; 142(6): 1084–91
Kurokawa I, Mayer-da-Silva A, Gollnick H, et al. Monoclonal antibody labelling for cytokeratins and filaggrin in the human pilosebaceous unit of normal, seborrhoeic and acne skin. J Invest Dermatol 1988 Dec; 91(6): 566–71
Hurwitz S. Acne vulgaris: its pathogenesis and management. Adolesc Med 1990 Jun; 1(2): 301–14
Paus R. Principles of hair cycle control. J Dermatol 1998 Dec; 25(12): 793–802
Knaggs HE, Holland DB, Morris C, et al. Quantification of cellular proliferation in acne using the monoclonal antibody Ki-67. J Invest Dermatol 1994 Jan; 102(1): 89–92
Aldana OL, Holland DB, Cunliffe WJ. Variation in pilosebaceous duct keratinocyte differentiation in acne patients. Dermatology 1998; 196(1): 98–9
Hughes BR, Morris C, Cunliffe WJ, et al. Keratin expression in pilosebaceous epithelia in truncal skin of acne patients. Br J Dermatol 1996 Feb; 134(2): 247–56
Knaggs HE, Hughes BR, Morris C, et al. Immunohistochemical study of desmosomes in acne vulgaris. Br J Dermatol 1994 Jun; 130(6): 731–7
Knaggs HE, Layton AM, Morris C, et al. Investigation of the expression of the extracellular matrix glycoproteins tenascin and fibronectin during acne vulgaris. Br J Dermatol 1994 May; 130(5): 576–82
Thiboutot DM, Knaggs H, Gilliland K, et al. Activity of type I 5α-reductase is greater in the follicular infundibulum compared with the epidermis. Br J Dermatol 1997 Feb; 136(2): 166–71
Lucky AW, Henderson TA, Olson WH, et al. Effectiveness of norgestimate and ethinyl estradiol in treating moderate acne vulgaris. J Am Acad Dermatol 1997 Nov; 37(5 Pt 1): 746–54
Gollnick H, Albring M, Brill K. The efficacy of oral cyproterone acetate in combination with ethinyloestradiol in acne tarda of the facial type. J Dermatol Treat 1998 Jun; 9(2): 71–9
Piérard GE, Piérard-Franchimont C, Le T. Seborrhoea in acneprone and acne-free patients. Dermatologica 1987; 175(1): 5–9
Schmidt JB, Spona J, Huber J. Androgen receptor in hirsutism and acne. Gynecol Obstet Invest 1986; 22(4): 206–11
Henze C, Hinney B, Wuttke W. Incidence of increased androgen levels in patients suffering from acne. Dermatology 1998; 196(1): 53–4
Davis S. Syndromes of hyperandrogenism in women. Aus Fam Physician 1999 May; 28(5): 447–51
Thiboutot D, Harris G, Iles V, et al. Activity of the type I 5α-reductase exhibits regional differences in isolated sebaceous glands and whole skin. J Invest Dermatol 1995 Aug; 105(2): 209–14
Chen W, Zouboulis CC, Fritsch M, et al. Heterogeneity and quantitative differences of type I 5α-reductase expression in cultured skin epithelial cells. Dermatology 1998; 196(1): 51–2
Törmä H. Interaction of isotretinoin with endogenous retinoids. J Am Acad Dermatol 2001 Nov; 45 Suppl. 5: S143–9
Cunliffe WJ. The sebaceous gland and acne: 40 years on. Dermatology 1998; 196(1): 9–15
Akamatsu H, Zouboulis CC, Orfanos CE. Control of human sebocyte proliferation in vitro by testosterone and 5-alpha-dihydrotestoterone is dependent on the localization of the sebaceous glands. J Invest Dermatol 1992 Oct; 99(4): 509–11
Rosenfield RL, Deplewski D, Kentsis A, et al. Mechanisms of androgen induction of sebocyte differentiation. Dermatology 1998; 196(1): 43–6
Rosenfield RL, Kentsis A, Deplewski D, et al. Rat preputial sebocyte differentiation involves peroxisome proliferator-activated receptors. J Invest Dermatol 1999 Feb; 112(2): 226–32
Rosenfield RL, Deplewski D, Greene ME. Peroxisome proliferator-activated receptors and skin development. Horm Res 2000; 54(5–6): 269–74
Fujie T, Shikiji T, Uchida N, et al. Culture of cells derived from the human sebaceous gland under serum-free conditions without a biological feeder layer or specific matrices. Arch Dermatol Res 1996 Oct; 288(11): 703–8
Nishijima S, Kurokawa I, Katoh N, et al. The bacteriology of acne vulgaris and antimicrobial susceptibility of Propionibacterium acnes and Staphylococcus epidermidis isolated from acne lesions. J Dermatol 2000 May; 27(5): 318–23
Burkhart CG, Burkhart CN, Lehmann PF. Acne: a review of immunologic and microbiologic factors. Postgrad Med J 1999 Jun; 75(884): 328–31
Leyden JJ, McGinley KJ, Mills OH, et al. Age-related changes in resident bacterial flora of the human face. J Invest Dermatol 1975 Oct; 65(4): 379–81
McGinley KJ, Webster GF, Ruggieri MR, et al. Regional variations in density of cutaneous propionibacteria: correlation of Propionibacterium acnes with sebaceous secretion. J Clin Microbiol 1980 Nov; 12(5): 672–5
Forssman T. Antibiotic resistance in acne patients under antibiotic treatment in comparison to an untreated control group with retrospective assessment of therapy. Curr Probl Dermatol 1995; 22: 91–7
Holland KT, Greenman J, Cunliffe WJ. Growth of cutaneous propionibacteria on synthetic medium: growth yields and exoenzyme production. J Appl Bacteriol 1979 Dec; 47(3): 383–94
Shalita AR, Lee WL. Inflammatory acne. Dermatol Clin 1983; 1: 361–4
Saint-Leger D, Bague A, Lefebvre E, et al. A possible role for squalene in the pathogenesis of acne. II: in vivo study of squalene oxides in skin surface and intra-comedonal lipids of acne patients. Br J Dermatol 1986 May; 114(5): 543–52
Ingham E, Walters CE, Eady EA, et al. Inflammation in acne vulgaris: failure of skin micro-organisms to modulate keratinocyte interleukin 1α production in vitro. Dermatology 1998; 196(1): 86–8
Allaker RP, Greenman J, Osborne RH. The production of inflammatory compounds by Propionibacterium acnes and other skin organisms. Br J Dermatol 1987 Aug; 117(2): 175–83
Puhvel SM, Sakamoto M. The chemoattractant properties of comedonal components. J Invest Dermatol 1978 Nov; 71(5): 324–9
Leyden JJ, McGinley KJ, Vowels B. Propionibacterium acnes colonization in acne and nonacne. Dermatology 1998; 196(1): 55–8
Vowels BR, Yang S, Leyden JJ. Induction of proinflammatory cytokines by a soluble factor of Propionibacterium acnes: implications for chronic inflammatory acne. Infect Immun 1995 Aug; 63(8): 3158–65
Webster GF, Leyden JJ. Characterization of serum-independent polymorphonuclear leukocyte chemotactic factors produced by Propionibacterium acnes. Inflammation 1980 Sep; 4(3): 261–9
Scott DG, Cunliffe WJ, Gowland G. Activation of complement: a mechanism for the inflammation in acne. Br J Dermatol 1979 Sep; 101(3): 315–20
Webster GF, Leyden JJ, Nilsson UR. Complement activation in acne vulgaris: consumption of complement by comedones. Infect Immun 1979 Oct; 26(1): 183–6
Knop J, Bossecker T, Kovary PM. Chemotactic efficiency of various chemoattractants for polymorphonuclear leukocytes in inflammatory acne vulgaris. Arch Dermatol Res 1982; 274(3–4): 267–75
Terui T, Kato T, Tagami H. Stratum corneum activation of complement through the antibody-independent alternative pathway. J Invest Dermatol 1989 Apr; 92(4): 593–7
Webster GF. Inflammatory acne represents hypersensitivity to Propionibacterium acnes. Dermatology 1998; 196(1): 80–1
Ashbee HR, Muir SR, Cunliffe WJ, et al. IgG subclasses specific to Staphylococcus epidermis and Propionibacterium acnes in patients with acne vulgaris. Br J Dermatol 1997 May; 136(5): 730–3
Gowland G, Ward RM, Holland KT, et al. Cellular immunity to P acnes in the normal population and patients with acne vulgaris. Br J Dermatol 1978 Jul; 99(1): 43–7
Kersey P, Sussman M, Dahl M. Delayed skin test reactivity to Propionibacterium acnes correlates with severity of inflammation in acne vulgaris. Br J Dermatol 1980 Dec; 103(6): 651–5
Karvonen SL, Rasanen L, Cunliffe WJ, et al. Delayed hypersensitivity to Propionibacterium acnes in patients with severe nodular acne and acne fulminans. Dermatology 1994; 189(4): 344–9
Norris JF, Cunliffe WJ. A histological and immunocytochemical study of early acne lesions. Br J Dermatol 1988 May; 118(5): 651–9
Guy R, Green MR, Kealey T. Modeling acne in vitro. J Invest Dermatol 1996 Jan; 106(1): 176–82
Guy R, Kealey T. The effects of inflammatory cytokines on the isolated human sebaceous infundibulum. J Invest Dermatol 1998 Apr; 110(4): 410–5
Guy R, Kealey T. Modeling the infundibulum in acne. Dermatology 1998; 196(1): 32–7
Ingham E, Eady EA, Goodwin CE, et al. Pro-inflammatory levels of interleukin-1 alpha-like bioactivity are present in the majority of open comedones in acne vulgaris. J Invest Dermatol 1992 Jun; 98(6): 895–901
Anttila HIS, Reitamo S, Saurat JH. Interleukin 1 immunoreactivity in sebaceous glands. Br J Dermatol 1992 Dec; 127(6): 585–8
Hauser C, Saurat JH, Schmit A, et al. Interleukin 1 is present in normal human epidermis. J Immunol 1986 May; 136(9): 3317–21
Downing DT, Stewart ME, Wertz PW, et al. The effect of sebum on epidermal lipid composition. In: Marks R, Plewig G, editors. Acne and related disorders. London: Dunitz, 1988: 57–62
Eller MS, Yaar M, Ostrom K, et al. A role for interleukin-1 in epidermal differentiation: regulation by expression of functional versus decoy receptors. J Cell Sci 1995 Aug; 108 (Pt 8): 2741–6
Knutson DD. Ultrastructural observations in acne vulgaris: the normal sebaceous follicle and acne lesions. J Invest Dermatol 1974 Mar; 62(3): 288–307
Strauss JS, Kligman AM. The pathogenic dynamics of acne vulgaris. Arch Dermatol 1960; 82: 779–90
Böhm M, Luger TA. The pilosebaceous unit is part of the skin immune system. Dermatology 1998; 196(1): 75–9
Plewig G. Follicular keratinization. J Invest Dermatol 1974 Mar; 62(3): 308–20
Reenstra WR, Yaar M, Gilchrest BA. Effect of donor age on epidermal growth factor processing in man. Exp Cell Res 1993 Nov; 209(1): 118–22
Zouboulis CC. Exploration of retinoid activity and the role of inflammation in acne: issues affecting the future directions for acne therapy. J Eur Acad Dermatol Venereol 2001; 15 Suppl. 3: 63–7
Downing DT, Stewart ME, Wertz PW, et al. Essential fatty acids and acne. J Am Acad Dermatol 1986 Feb; 14 (2 Pt 1): 221–5
Ziboh VA, Miller CC, Cho Y. Metabolism of polyunsaturated fatty acids by skin epidermal enzymes: generation of anti-inflammatory and antiproliferative metabolites. Am J Clin Nutr 2000 Jan; 71 (1 Suppl.): 361S–6S
Letawe C, Boone M, Pierard GE. Digital image analysis of the effect of topically applied linoleic acid on acne microcomedones. Clin Exp Dermatol 1998 Mar; 23(2): 56–8
Stewart ME. Sebaceous gland lipids. Semin Dermatol 1992 Jun; 11(2): 100–5
Akamatsu H, Komura J, Miyachi Y, et al. Suppressive effects of linoleic acid on neutrophil oxygen metabolism and phagocytosis. J Invest Dermatol 1990 Sep; 95(3): 271–4
Duvic M, Chandraratna RA. Retinoid receptor selectivity: importance and clinical application in skin diseases and other diseases. Dermatol Ther 1998; 7: 7–14
Nagpal S, Chandraratna RA. Recent developments in receptor-selective retinoids. Curr Pharm Des 2000 Jun; 6(9): 919–31
Jetten AM. Multi-stage program of differentiation in human epidermal keratinocytes: regulation by retinoids. J Invest Dermatol 1990 Nov; 95(5): 44S–6S
Fisher C, Blumenberg M, Tomic-Canic M. Retinoid receptors and keratinocytes. Crit Rev Oral Biol Med 1995; 6(4): 284–301
Zouboulis CC, Seltmann H, Neitzel H, et al. Establishment and characterization of an immortalized human sebaceous gland cell line (SZ95). J Invest Dermatol 1999 Dec; 113(6): 1011–20
Zouboulis CC, Seltmann H, Sass JO, et al. Retinoid signaling by all-trans retinoic acid and all-trans retinoyl-β-D-glucuronide is attenuated by simultaneous exposure of human keratinocytes to retinol. J Invest Dermatol 1999 Feb; 112(2): 157–64
Vahlquist A, Rollman O, Holland DB, et al. Isotretinoin treatment of severe acne affects the endogenous concentration of Vitamin A in sebaceous glands. J Invest Dermatol 1990 Apr; 94(4): 496–8
White GM. Acne therapy. Dis Mon 1999 Aug; 45(8): 301–30
Weisshaar E, Schramm M, Gollnick H. Familial nevoid sebaceous gland hyperplasia affecting three generations of a family. Eur J Dermatol 1999 Dec; 9(8): 621–3
Gollnick H, Orfanos CE. Familial nevoid sebaceous hyperplasia with hyperandrogenism. In: Wilkinson DS, Mascaro JM, Orfanos CE, editors. Clinical Dermatology, the CMD Case Collection. World Congress of Dermatology; 1987 May 24–29; Berlin. Berlin: Schattauer Verlag, 1987: 350–2
Liddell K. A familial study of acne and eczema. Br J Dermatol 1976 Jun; 94: 633–7
Layton AM, Henderson CA, Cunliffe WJ. A clinical evaluation of acne scarring and its incidence. Clin Exp Dermatol 1994 Jul; 19(4): 303–8
Thiboutot D. New treatments and therapeutic strategies for acne. Arch Fam Med 2000 Feb; 9(2): 179–87
Zouboulis CC, Krieter A, Gollnick H, et al. Progressive differentiation of human sebocytes in vitro is characterized by increasing cell size and altering antigen expression and is upregulated by culture duration and retinoids. Exp Dermatol 1994 Aug; 3(4): 151–60
Millikan LE. Adapalene: an update on newer comparative studies between the various retinoids. Int J Dermatol 2000 Oct; 39(10): 784–9
Weiss JS. Current options for the topical treatment of acne vulgaris. Pediatr Dermatol 1997 Nov–Dec; 14(6): 480–8
Thielitz A, Helmdach M, Ropke EM, et al. Lipid analysis of follicular casts from cyanoacrylate strips as a new method for studying therapeutic effects of antiacne agents. Br J Dermatol 2001 Jul; 145(1): 19–27
Hensby C, Cavey D, Bouclier M, et al. The in vivo and in vitro anti-inflammatory activity of CD271: a new retinoid-like modulator of cell differentiation. Agents Actions 1990 Jan; 29(1–2): 56–8
Vega B, Ferret C, Jomard A, et al. Regulation of Toll-like receptor 2 expression by adapalene: implications for the treatment of inflammatory acne [poster P0156]. International Investigative Dermatology Meeting; 2003 Apr 30–May 4; Miami (FL)
Shalita A, Weiss JS, Chalker DK, et al. A comparison of the efficacy and safety of adapalene gel 0.1% and tretinoin gel 0.025% in the treatment of acne vulgaris: a multicenter trial. J Am Acad Dermatol 1996 Mar; 34: 482–5
Verschoore M, Poncet M, Czernielewski J, et al. Adapalene 0.1% gel has low skin-irritation potential. J Am Acad Dermatol 1997 Jun; 36 Suppl.: S104–S9
Cunliffe WJ, Poncet M, Loesche C, et al. A comparison of the efficacy and tolerability of adapalene 0.1 % gel versus tretinoin 0.025% gel in patients with acne vulgaris: a meta-analysis of five randomized trials. Br J Dermatol 1998 Oct; 139 Suppl. 52: 48–56
Caron D, Sorba V, Kerrouche N, et al. Split-face comparison of adapalene gel 0.1% and tretinoin 0.025% gel in acne patients. J Am Acad Dermatol 1997 Jun; 36 Suppl.: S110–S2
Grosshans E, Marks R, Mascaro JM, et al. Evaluation of clinical efficacy and safety of adapalene 0.1% gel versus tretinoin 0.025% gel in the treatment of acne vulgaris, with particular reference to the onset of action and impact on quality of life. Br J Dermatol 1998 Oct; 139 Suppl. 52: 26–33
Gibson JR. Rationale for the development of new topical treatments for acne vulgaris. Cutis 1996 Jan; 57: 13–9
Webster GF, Berson D, Stein LF, et al. Efficacy and tolerability of once-daily tazarotene 0.1% gel versus once-daily tretinoin 0.025% gel in the treatment of facial acne vulgaris: a randomised trial. Cutis 2001 Jun; 67: 4–9
Leyden JJ, Tanghetti EA, Miller B, et al. Once-daily tazarotene 0.1 % gel versus once-daily tretinoin 0.1% microsponge gel for the treatment of facial acne vulgaris: a double-blind randomised trial. Cutis 2002 Feb; 69: 12–9
Meynadier J, Alirezai M. Systemic antibiotics for acne. Dermatology 1998; 196(1): 135–9
Orfanos CE, Zouboulis CHC. Oral retinoids in the treatment of seborrhoea and acne. Dermatology 1998; 196(1): 140–7
O’Donoghue MN. Update on acne therapy. Dermatology Nursing 1999 Jun; 11(3): 205–8
Beylot C, Doutre MS, Beylot-Barry M. Oral contraceptives and cyproterone acetate in female acne treatment. Dermatology 1998; 196(1): 148–52
Baur DA, Butler RCD. Current concepts in the pathogenesis and treatment of acne. J Oral Maxillofac Surg 1998; 56: 651–5
Placzek M, Degitz K, Schmidt H, et al. Acne fulminans in late-onset congenital adrenal hyperplasia. Lancet 1999 Aug; 354(9180): 739–40
Gollnick H, Schramm M. Topical therapy in acne. J Eur Acad Dermatol Venereol 1998 Sep; 11 Suppl. 1: S8–S12
Webster GF. Topical tretinoin in acne therapy. J Am Acad Dermatol 1998 Aug; 39 (2 Pt 3): S38–44
Rietschel RL, Duncan SH. Clindamycin phosphate used in combination with tretinoin in the treatment of acne. Acta Derm Venereol 1978; 58: 555–7
Kligman AM, Mills OH, McGinley KJ, et al. Acne therapy with tretinoin in combination with antibiotics. Acta Derm Venereol Suppl (Stockh) 1975; 74: 111–5
Hurwitz S. The combined effect of vitamin A acid and benzoyl peroxide in the treatment of acne. Cutis 1976; 17: 585–90
Caron D, Sorba V, Clucas A, et al. Skin tolerance of adapalene 0.1% gel in combination with other topical antiacne treatments. J Am Acad Dermatol 1997; 36 (6 Pt 2): S113–S5
Eady EA. Bacterial resistance in acne. Dermatology 1998; 196(1): 59–66
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Professor Gollnick has conducted clinical studies for Galderma, Schering Berlin (AG), Yamanouchi, Hoffmann-la Roche and Hermal Company. Preparation of this manuscript was supported by Galderma International.
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Gollnick, H. Current Concepts of the Pathogenesis of Acne. Drugs 63, 1579–1596 (2003). https://doi.org/10.2165/00003495-200363150-00005
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DOI: https://doi.org/10.2165/00003495-200363150-00005