Evidence map›Paper›PMID 16779655›Full record

ArticleJournal of bioenergetics and biomembranes2006

Role of mitochondria in the immune response to cancer: a central role for Ca2+.

Giovanna R Degasperi, Jesus A Velho, Karina G Zecchin, Cláudio T Souza, Lício A Velloso, Jiri Borecký, Roger F Castilho, Anibal E Vercesi

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of bioenergetics and biomembranes, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

6 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Extracellular ATP and dibutyryl cAMP enhance the freezability of rat epididymal sperm.Journal of the American Association for Laboratory Animal Science : JAALAS · 2010
    Article
  5. Article
  6. 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

8 authors at 1 institution in 1 country.

Giovanna R DegasperiDepartamento de Patologia Clínica, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, SP 13083-970, Brazil.
Jesus A Velho
Karina G Zecchin
Cláudio T Souza
Lício A Velloso
Jiri Borecký
Roger F Castilho
Anibal E Vercesi
Universidade Estadual de Campinas (UNICAMP) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study demonstrates that Ca2+ stimulates mitochondrial energy metabolism during spleen lymphocyte activation in response to the ascitic Walker 256 tumor in rats. Intracellular Ca2+ concentrations, phosphorylated protein kinase C (pPKC) levels, Bcl-2 protein contents, interleukin-2 (IL-2) levels, mitochondrial uncoupling protein-2 (UCP-2) contents and reactive oxygen species (ROS) were significantly elevated in these activated lymphocytes. Mitochondria of activated lymphocytes exhibited high free Ca2+ concentrations in the matrix and enhanced oligomycin-sensitive oxygen consumption, indicating an increased rate of oxidative phosphorylation. The production of ROS was largely decreased by diphenylene iodinium in the activated lymphocytes, suggesting that NADPH oxidase is the prevalent source of these species. Accumulation of UCP-2 and the anti-apoptotic protein Bcl-2 is probably important to prevent mitochondrial dysfunction and cell death elicited by the sustained high levels of intracellular Ca2+ and ROS and may explain the observed higher resistance from activated lymphocytes against the opening of the mitochondrial membrane permeability pore (MPT). All these changes were blocked by pretreatment of the rats with verapamil, an L-type Ca2+ channel antagonist. These data demonstrate a central role of Ca2+ in the control of mitochondrial bioenergetics in spleen lymphocytes during the immune response to cancer.

Indexed as

AnimalsCalciumCarcinoma 256, WalkerCell DeathEnergy MetabolismInterleukin-2In Vitro TechniquesIon ChannelsLymphocyte ActivationLymphocytesMaleMembrane Transport ProteinsMitochondriaMitochondrial MembranesMitochondrial ProteinsNADPH OxidasesCalciumInterleukin-2Ion ChannelsMembrane Transport ProteinsMitochondrial ProteinsNADPH OxidasesProtein Kinase CProto-Oncogene Proteins c-bcl-2Reactive Oxygen SpeciesUcp2 protein, ratUncoupling Protein 2

Identifiers

PMID16779655
OpenAlexW1988371661

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.