Evidence map›Paper›PMID 8557354›Full record

ArticleInfection and immunity1996

Antigenic differences associated with genetically distinct Pneumocystis carinii from rats.

J Vasquez, A G Smulian, M J Linke, M T Cushion

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Infection and immunity, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

10 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Immunological features of Pneumocystis carinii infection in humans.Clinical and diagnostic laboratory immunology · 1999
    Review
  10. 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

4 authors at 1 institution in 1 country.

J VasquezDepartment of Internal Medicine, James Quillen College of Medicine, Johnson City, Tennessee 37614-0622, USA.
A G Smulian
M J Linke
M T Cushion
James H. Quillen VA Medical Center · US

Funding

TRANSMISSION OF PNEUMOCYSTIS INFECTIONR01AI029839 · NIAID · UNIVERSITY OF CINCINNATI · PI CUSHION, MELANIE T · 1991 to 2001
$445k
NIAID NIH HHS R01 AI 29839
6 · The paper itself

Abstract

Pneumocystis carinii is a family of organisms found in a wide variety of mammalian lungs. In immunocompromised hosts, the organisms are able to produce an oftentimes fatal pneumonia. The existence of distinct types of Pneumocystis populations is strongly supported by antigenic and genetic evidence. In the present study, we assessed the antigenic profiles of two genetically distinct Pneumocystis carinii populations, P. carinii f. sp. carinii and P. carinii f. sp. ratti, as well as two types of P. carinii f. sp. carinii defined by electrophoretic karyotyping (forms 1 and 2). The separated and blotted proteins of the organism preparations were probed with four monoclonal antibodies (MAbs) generated to the major surface glycoproteins of rat-derived P. carinii, one anti-human P. carinii MAb, and two polyclonal antisera made with rat-derived P. carinii as the immunogen. Differences in reactivities between the P. carinii f. sp. carinii and P. carinii f. sp. ratti preparations were detected with two of the MAbs, and both of the rat P. carinii polyclonal antisera in the 45- to 55-kDa molecular mass range, but not with the human P. carinii MAb. The reactivities of the 16 P. carinii f. sp. carinii preparations were the same with two exceptions. Two preparations of form 1 showed strong reactivity with the anti-MSG MAb RA-C11. The ratios of cyst forms to trophic forms evaluated by microscopy were not associated with any of the differences observed in the antigenic profiles. The antigenic differences between P. carinii f. sp. carinii and P. carinii f. sp. ratti are consistent with the distinction of these two populations made by molecular genetic techniques, while the two differences detected among the P. carinii f. sp. carinii preparations suggest the organism may be able to modulate antigenic epitopes. The use of immunoblotting to differentiate infecting organism populations and assess antigenic modulation holds promise for future epidemiologic studies.

Indexed as

Acquired Immunodeficiency SyndromeAnimalsAntibodies, FungalAntibodies, MonoclonalAntigens, FungalBlotting, SouthernCell DifferentiationColony Count, MicrobialFungal ProteinsHumansImmunoblottingImmunocompromised HostMembrane GlycoproteinsPneumocystisRatsRats, Sprague-DawleyAntibodies, FungalAntibodies, MonoclonalAntigens, FungalFungal ProteinsGPA protein, Pneumocystis carinii sp.Membrane Glycoproteins

Identifiers

PMID8557354
PMCPMC173758
OpenAlexW2118431508

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Registered trials

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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.