Evidence map›Paper›PMID 18768927›Full record

ArticleAmerican journal of physiology. Cell physiology2008

Proinflammatory cytokines tumor necrosis factor-alpha and interferon-gamma alter tight junction structure and function in the rat parotid gland Par-C10 cell line.

Olga J Baker, Jean M Camden, Robert S Redman, Jonathan E Jones, Cheikh I Seye, Laurie Erb, Gary A Weisman

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Cell physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

81 citing papers in PubMed, 124 citations in OpenAlex.

  1. Review
  2. Single-cell profiling reveals clonal CD8Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
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21 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 2 countries.

Olga J BakerDept. of Biochemistry, Univ. of Missouri-Columbia, 540A Christopher S. Bond Life Sciences Center, Columbia, MO 65211, USA. bakero@missouri.edu
Jean M Camden
Robert S Redman
Jonathan E Jones
Cheikh I Seye
Laurie Erb
Gary A Weisman
University of Missouri · USLaboratoire d’immunologie intégrative du cancer · FR

Funding

VIP RECEPTORS AND SUBMANDIBULAR GLAND FUNCTIONR01DE007389 · NIDCR · UNIVERSITY OF MISSOURI-COLUMBIA · PI WEISMAN, GARY ANDREW · 1988 to 2020
$7.6M
Novel Mechanisms of Chronic Inflammation in Sjogren's SyndromeR01DE017591 · NIDCR · UNIVERSITY OF MISSOURI-COLUMBIA · PI WEISMAN, GARY ANDREW · 2006 to 2010
$1.6M
P2Y2R MEDIATED IMMUNE RESPONSES IN SALIVARY GLAND DYSFUNCTIONK08DE017633 · NIDCR · UNIVERSITY OF MISSOURI-COLUMBIA · PI BAKER, OLGA JULIANA · 2006 to 2008
$267k
NIDCR NIH HHS K08-DE-017633-01NIDCR NIH HHS R01 DE007389NIDCR NIH HHS R01 DE017591NIDCR NIH HHS R01-DE-017591-01NIDCR NIH HHS R01-DE-07389-19
6 · The paper itself

Abstract

Sjögren's syndrome (SS) is an autoimmune disorder characterized by inflammation and dysfunction of salivary glands, resulting in impaired secretory function. The production of the proinflammatory cytokines tumor necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma) is elevated in exocrine glands of patients with SS, although little is known about the effects of these cytokines on salivary epithelial cell functions necessary for saliva secretion, including tight junction (TJ) integrity and the establishment of transepithelial ion gradients. The present study demonstrates that chronic exposure of polarized rat parotid gland (Par-C10) epithelial cell monolayers to TNF-alpha and IFN-gamma decreases transepithelial resistance (TER) and anion secretion, as measured by changes in short-circuit current (I(sc)) induced by carbachol, a muscarinic cholinergic receptor agonist, or UTP, a P2Y(2) nucleotide receptor agonist. In contrast, TNF-alpha and IFN-gamma had no effect on agonist-induced increases in the intracellular calcium concentration [Ca(2+)](i) in Par-C10 cells. Furthermore, treatment of Par-C10 cell monolayers with TNF-alpha and IFN-gamma increased paracellular permeability to normally impermeant proteins, altered cell and TJ morphology, and downregulated the expression of the TJ protein, claudin-1, but not other TJ proteins expressed in Par-C10 cells. The decreases in TER, agonist-induced transepithelial anion secretion, and claudin-1 expression caused by TNF-alpha, but not IFN-gamma, were reversible by incubation of Par-C10 cell monolayers with cytokine-free medium for 24 h, indicating that IFN-gamma causes irreversible inhibition of cellular activities associated with fluid secretion in salivary glands. Our results suggest that cytokine production is an important contributor to secretory dysfunction in SS by disrupting TJ integrity of salivary epithelium.

Indexed as

AnimalsCalciumCarbacholCell Line, TransformedCell ShapeClaudin-1Electric ImpedanceInflammation MediatorsInterferon-gammaMembrane ProteinsMuscarinic AgonistsParotid GlandPermeabilityRatsReceptors, Purinergic P2Receptors, Purinergic P2Y2CalciumCarbacholClaudin-1Cldn1 protein, ratInflammation MediatorsInterferon-gammaMembrane ProteinsMuscarinic AgonistsP2ry2 protein, ratReceptors, Purinergic P2Receptors, Purinergic P2Y2Tumor Necrosis Factor-alphaUridine Triphosphate

Identifiers

PMID18768927
PMCPMC2584989
OpenAlexW1992311502

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.