Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Preputial sebocyte 5alpha-reductase isoform specificity

D Deplewski1, S Liao, R L Rosenfield

  • 1The University of Chicago, Pritzker School of Medicine, Department of Pediatrics, Illinois 60637-1470, USA.

Endocrinology
|October 10, 1997
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Public Perception of Fluoride: An Infodemiological Analysis of YouTube Videos and Comments.

JDR clinical and translational research·2026
Same author

Comparative efficacy of zanubrutinib plus obinutuzumab versus last prior treatment in relapsed/refractory follicular lymphoma: growth modulation index analysis from the ROSEWOOD study.

ESMO open·2026
Same author

[Endoscopic rubber band ligation and injection therapy for grade I - III internal hemorrhoids: analysis of clinical efficacy and safety].

Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery·2025
Same author

Therapeutic Value of Exclusive and Partial Enteral Nutrition in Adult Patients with Moderate to Severe Crohn's Disease with Ustekinumab for Induction of Remission.

Nigerian journal of clinical practice·2025
Same author

[Effectiveness of comprehensive echinococcosis control measures with emphasis on management of infectious source in Sichuan Province from 2010 to 2022].

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control·2024
Same author

Development of terpenoid repellents against <i>Aedes albopictus</i>: a combined study of biological activity evaluation and computational modelling.

SAR and QSAR in environmental research·2024
Same journal

Zingerone ameliorates ovarian impairment by regulating steroidogenesis and apoptosis in letrozole-treated mouse.

Endocrinology·2026
Same journal

Loss of the calorie restriction response protein DEPP1 worsens diet-induced obesity.

Endocrinology·2026
Same journal

Long Non-Coding RNAs Mediate Endocrine Signaling and Resistance in Prostate Cancer.

Endocrinology·2026
Same journal

Repeated Chemogenetic Activation of C1 Catecholamine Neurons Reduces Subsequent Glucoprivic Responses and Mimics HAAF.

Endocrinology·2026
Same journal

Postnatal exposure to maternal hypothyroidism leads to developmental delay and metabolic dysregulations in male mice.

Endocrinology·2026
Same journal

Discovery proteomics identification of factors contributing to gonadotropin β expression.

Endocrinology·2026
See all related articles

Rat preputial sebocytes primarily express the type 1 5alpha-reductase (5alpha-R) isozyme, unlike other genital organs. This suggests skin-specific signaling influences 5alpha-R expression during sebocyte differentiation.

Area of Science:

  • Andrology
  • Dermatology
  • Biochemistry

Background:

  • The 5alpha-reductase (5alpha-R) enzyme is crucial for converting androgens into more potent dihydrotestosterone (DHT).
  • Two main isozymes, type 1 and type 2 5alpha-R, exist with distinct tissue distributions and functions.
  • Sebaceous glands, including those in the prepuce, are androgen-dependent, but their specific 5alpha-R isozyme profile is not well-defined.

Purpose of the Study:

  • To determine the 5alpha-reductase (5alpha-R) isozyme specificity in rat preputial sebocytes.
  • To compare the isozyme expression in preputial sebocytes with that of skin sebaceous glands and other genital tract organs.

Main Methods:

  • Immunostaining of rat preputial gland and cultured cells.
  • Northern blot analysis to detect messenger RNA (mRNA) expression.

Related Experiment Videos

  • Ribonuclease protection assays (RPAs) to quantify 5alpha-R isozyme mRNA levels.

    • Main Results:

    • Immunostaining confirmed the presence of type 1 5alpha-R in preputial epithelial cells.
    • Northern blots and RPAs revealed a strong expression of type 1 5alpha-R mRNA in preputial sebocytes, with minimal type 2 mRNA.
    • Preputial gland and cells showed significantly higher type 1 5alpha-R mRNA levels compared to skin and cultured cells, suggesting increased expression with differentiation.

    Conclusions:

    • Rat preputial sebocytes predominantly express the type 1 5alpha-R isozyme.
    • This finding contrasts with the type 2 isozyme predominance in other genital tract organs.
    • The results indicate that skin- and sebocyte-specific signaling likely regulates 5alpha-R expression during sebaceous cell differentiation.