Evidence map›Paper›PMID 12163394›Full record

ArticleThe American journal of pathology2002

Impaired hair follicle morphogenesis and cycling with abnormal epidermal differentiation in nackt mice, a cathepsin L-deficient mutation.

Fernando Benavides, Matthew F Starost, Mónica Flores, Irma B Gimenez-Conti, Jean-Louis Guénet, Claudio J Conti

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.1field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Genetically modified laboratory mice with sebaceous glands abnormalities.Cellular and molecular life sciences : CMLS · 2016
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Regulation of the epithelial Na+ channel by peptidases.Current topics in developmental biology · 2007
    Review
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Fernando BenavidesScience Park-Research Division, The University of Texas M. D. Anderson Cancer Center, Smithville, Texas 78957, USA. fbenavides@sprd1.mdacc.tmc.edu
Matthew F Starost
Mónica Flores
Irma B Gimenez-Conti
Jean-Louis Guénet
Claudio J Conti
The University of Texas MD Anderson Cancer Center · USInstitut Pasteur · FR

Funding

GENETIC SUSCEPTIBILITY TO CHEMICAL CARCINOGENESISR01CA069146 · NCI · UNIVERSITY OF TEXAS MD ANDERSON CAN CTR · PI CONTI, CLAUDIO J · 1997 to 2000
$184k
NCI NIH HHS CA69146
6 · The paper itself

Abstract

We previously described an autosomal-recessive mutation named nackt (nkt) exhibiting partial alopecia associated with CD4(+) T-cell deficiency. Also, we recently reported that nkt (now Ctsl(nkt)) comprises a deletion in the cathepsin L (Ctsl) gene. Another recent study reported that Ctsl knockout mice have CD4(+) T-cell deficiency and periodic shedding of hair, which recapitulate the nkt mutation and the old furless (fs) mutation. The current study focuses on the dermatological aspects of the nkt mutation. Careful histological analysis of skin development of homozygous nkt mice revealed a delayed hair follicle morphogenesis and late onset of the first catagen stage. The skin of Ctsl(nkt)/Ctsl(nkt) mice showed mild epidermal hyperplasia and hyperkeratosis, severe hyperplasia of the sebaceous glands, and structural alterations of hair follicles. Epidermal differentiation seems to be affected in nkt skin, with overexpression of involucrin and profilaggrin/filaggrin along with focal areas of keratin 6 expression in the interfollicular epidermis. Severe epidermal hyperplasia, acanthosis, orthokeratosis, and hyperkeratosis were only observed in mice maintained in nonpathogen-free environments. The analysis of Rag2-/- Ctsl(nkt)/Ctsl(nkt) double-mutant mice indicates that the skin defect remains under the absence of T and B cells. This animal model provides in vivo evidence that cysteine protease cathepsin L plays a critical role in hair follicle morphogenesis and cycling, as well as epidermal differentiation.

Indexed as

AlopeciaAnimalsCathepsin LCathepsinsCell DifferentiationCysteine EndopeptidasesEpidermisFemaleHair FollicleImmunohistochemistryMaleMiceMice, Mutant StrainsMorphogenesisMutationCathepsin LCathepsinsCtsl protein, mouseCysteine Endopeptidases

Identifiers

PMID12163394
PMCPMC1850757
OpenAlexW2009111093

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.