Sex steroids regulate skin pigmentation through nonclassical membrane-bound receptors

  1. Christopher A Natale
  2. Elizabeth K Duperret
  3. Junqian Zhang
  4. Rochelle Sadeghi
  5. Ankit Dahal
  6. Kevin Tyler O'Brien
  7. Rosa Cookson
  8. Jeffrey D Winkler
  9. Todd W Ridky  Is a corresponding author
  1. Perelman School of Medicine, University of Pennsylvania, United States
  2. University of Pennsylvania, United States

Abstract

The association between pregnancy and altered cutaneous pigmentation has been documented for over two millennia, suggesting that sex hormones play a role in regulating epidermal melanocyte (MC) homeostasis. Here we show that physiologic estrogen (17β-estradiol) and progesterone reciprocally regulate melanin synthesis. This is intriguing given that we also show that normal primary human MCs lack classical estrogen or progesterone receptors (ER or PR). Utilizing both genetic and pharmacologic approaches, we establish that sex steroid effects on human pigment synthesis are mediated by the membrane-bound, steroid hormone receptors G protein-coupled estrogen receptor (GPER), and progestin and adipoQ receptor 7 (PAQR7). Activity of these receptors was activated or inhibited by synthetic estrogen or progesterone analogs that do not bind to ER or PR. As safe and effective treatment options for skin pigmentation disorders are limited, these specific GPER and PAQR7 ligands may represent a novel class of therapeutics.

Article and author information

Author details

  1. Christopher A Natale

    Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, United States
    Competing interests
    Christopher A Natale, Listed as an inventor on patent applications held by the University of Pennsylvania for the use of topical estrogen and progesterone derivatives for modulating skin pigmentation.
  2. Elizabeth K Duperret

    Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, United States
    Competing interests
    No competing interests declared.
  3. Junqian Zhang

    Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, United States
    Competing interests
    No competing interests declared.
  4. Rochelle Sadeghi

    Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, United States
    Competing interests
    No competing interests declared.
  5. Ankit Dahal

    Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, United States
    Competing interests
    No competing interests declared.
  6. Kevin Tyler O'Brien

    Department of Chemistry, University of Pennsylvania, Philadelphia, United States
    Competing interests
    No competing interests declared.
  7. Rosa Cookson

    Department of Chemistry, University of Pennsylvania, Philadelphia, United States
    Competing interests
    No competing interests declared.
  8. Jeffrey D Winkler

    Department of Chemistry, University of Pennsylvania, Philadelphia, United States
    Competing interests
    Jeffrey D Winkler, Listed as an inventor on patent applications held by the University of Pennsylvania for the use of topical estrogen and progesterone derivatives for modulating skin pigmentation.
  9. Todd W Ridky

    Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, United States
    For correspondence
    ridky@mail.med.upenn.edu
    Competing interests
    Todd W Ridky, Listed as an inventor on patent applications held by the University of Pennsylvania for the use of topical estrogen and progesterone derivatives for modulating skin pigmentation.

Reviewing Editor

  1. Marianne E Bronner, California Institute of Technology, United States

Ethics

Animal experimentation: This study was performed in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. All of the animals were handled according to approved institutional animal care and use committee (IACUC) protocol (#803381) of the University of Pennsylvania.

Version history

  1. Received: February 9, 2016
  2. Accepted: April 11, 2016
  3. Accepted Manuscript published: April 26, 2016 (version 1)
  4. Version of Record published: May 11, 2016 (version 2)

Copyright

© 2016, Natale et al.

This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.

Metrics

  • 6,230
    views
  • 1,056
    downloads
  • 85
    citations

Views, downloads and citations are aggregated across all versions of this paper published by eLife.

Download links

A two-part list of links to download the article, or parts of the article, in various formats.

Downloads (link to download the article as PDF)

Open citations (links to open the citations from this article in various online reference manager services)

Cite this article (links to download the citations from this article in formats compatible with various reference manager tools)

  1. Christopher A Natale
  2. Elizabeth K Duperret
  3. Junqian Zhang
  4. Rochelle Sadeghi
  5. Ankit Dahal
  6. Kevin Tyler O'Brien
  7. Rosa Cookson
  8. Jeffrey D Winkler
  9. Todd W Ridky
(2016)
Sex steroids regulate skin pigmentation through nonclassical membrane-bound receptors
eLife 5:e15104.
https://doi.org/10.7554/eLife.15104

Share this article

https://doi.org/10.7554/eLife.15104

Further reading

    1. Cell Biology
    Yoko Nakai-Futatsugi, Jianshi Jin ... Masayo Takahashi
    Research Article

    Retinal pigment epithelium (RPE) cells show heterogeneous levels of pigmentation when cultured in vitro. To know whether their color in appearance is correlated with the function of the RPE, we analyzed the color intensities of human-induced pluripotent stem cell-derived RPE cells (iPSC-RPE) together with the gene expression profile at the single-cell level. For this purpose, we utilized our recent invention, Automated Live imaging and cell Picking System (ALPS), which enabled photographing each cell before RNA-sequencing analysis to profile the gene expression of each cell. While our iPSC-RPE were categorized into four clusters by gene expression, the color intensity of iPSC-RPE did not project any specific gene expression profiles. We reasoned this by less correlation between the actual color and the gene expressions that directly define the level of pigmentation, from which we hypothesized the color of RPE cells may be a temporal condition not strongly indicating the functional characteristics of the RPE.

    1. Cancer Biology
    2. Cell Biology
    Savvas Nikolaou, Amelie Juin ... Laura M Machesky
    Research Article

    Pancreatic ductal adenocarcinoma carries a dismal prognosis, with high rates of metastasis and few treatment options. Hyperactivation of KRAS in almost all tumours drives RAC1 activation, conferring enhanced migratory and proliferative capacity as well as macropinocytosis. Macropinocytosis is well understood as a nutrient scavenging mechanism, but little is known about its functions in trafficking of signaling receptors. We find that CYRI-B is highly expressed in pancreatic tumours in a mouse model of KRAS and p53-driven pancreatic cancer. Deletion of Cyrib (the gene encoding CYRI-B protein) accelerates tumourigenesis, leading to enhanced ERK and JNK-induced proliferation in precancerous lesions, indicating a potential role as a buffer of RAC1 hyperactivation in early stages. However, as disease progresses, loss of CYRI-B inhibits metastasis. CYRI-B depleted tumour cells show reduced chemotactic responses to lysophosphatidic acid, a major driver of tumour spread, due to impaired macropinocytic uptake of the lysophosphatidic acid receptor-1. Overall, we implicate CYRI-B as a mediator of growth and signaling in pancreatic cancer, providing new insights into pathways controlling metastasis.