Related Experiment Video
Updated: Jun 5, 2026

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
Published on: September 7, 2013
Melanocortin-5 receptor and sebogenesis
Li Zhang1, Wen-Hwa Li, Michael Anthonavage
1The Johnson & Johnson Skin Research Center, Consumer Product Worldwide, a unit of Johnson & Johnson Consumer Companies, Inc.,199 Grandview Rd., Skillman, NJ 08558, USA. lzhang1@its.jnj.com
Melanocortin MC(5) receptor antagonists can reduce sebum production. These compounds show promise for treating acne and other sebaceous disorders characterized by excess sebum.
Area of Science:
- Dermatology and endocrinology, focusing on skin lipid regulation.
Background:
- Melanocortins (α-MSH, β-MSH, γ-MSH, and ACTH) signal via melanocortin receptors, influencing biological processes.
- Human sebaceous glands express MC(5) and MC(1) receptors; excessive sebum production contributes to acne pathogenesis.
- MC(5) receptor expression correlates with sebocyte differentiation and sebum production, with α-MSH acting as a sebotropic hormone in rodents.
Purpose of the Study:
- To investigate melanocortin MC(5) receptor antagonists as potential agents for suppressing sebum production.
- To explore the therapeutic potential of MC(5) receptor antagonists for sebaceous disorders like acne.
Main Methods:
- Utilized MC(5) receptor antagonists to assess their effect on sebocyte differentiation in vitro.
- Evaluated the efficacy of MC(5) receptor antagonists in reducing sebum production in human skin xenografts on immunodeficient mice.
Main Results:
- MC(5) receptor antagonists inhibited sebocyte differentiation in vitro.
- Antagonists demonstrated a reduction in sebum production in human skin xenografts.
- Findings support the role of melanocortins in stimulating sebaceous lipid production via the MC(5) receptor.
Conclusions:
- Melanocortin MC(5) receptor antagonists are effective in reducing sebum production and sebocyte differentiation.
- MC(5) receptor antagonists represent a promising therapeutic strategy for managing acne and other conditions involving excessive sebum production.
Related Concept Videos
Accessory Structures of the Skin: Sebaceous Glands
These glands that produce the oils on the skin and hair are holocrine glands. The mature...
TGF - β Signaling Pathway
Receptor Downregulation in MVBs
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR activation may...
Cholinergic Receptors: Muscarinic
The subtypes M1, M3, and M5 couple with the Gq subunit and activate the phospholipase C (PLC) activity, mobilizing intracellular Ca2+. Activation...
Mitogens and the Cell Cycle
MAPK Signaling Cascades

