Evidence map›Paper›PMID 29117636›Full record

ArticleCellular microbiology2018

Chlamydia trachomatis regulates growth and development in response to host cell fatty acid availability in the absence of lipid droplets.

Manu Sharma, Maria A Recuero-Checa, Frances Yue Fan, Deborah Dean

Open access · bronzeAbstract read
In one paragraph

Article in Cellular microbiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

20 citing papers in PubMed, 23 citations in OpenAlex.

  1. Anti-International journal of molecular sciences · 2026
    Review
  2. Influence of cervicovaginal microbiota onMicrobial cell (Graz, Austria) · 2025
    Review
  3. Article
  4. Article
  5. Patterns of within-host spread ofbioRxiv : the preprint server for biology · 2023
    Article
  6. Patterns of within-host spread ofFrontiers in microbiology · 2023
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. The multiple functions of the numerousMicrobial cell (Graz, Austria) · 2019
    Review
  18. Review
  19. Article
  20. Chlamydial Infection From Outside to Inside.Frontiers in microbiology · 2019
    Review
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 2 institutions in 1 country.

Manu SharmaCenter for Immunobiology and Vaccine Development, UCSF Benioff Children's Hospital Oakland Research Institute, Oakland, CA, USA.
Maria A Recuero-ChecaCenter for Immunobiology and Vaccine Development, UCSF Benioff Children's Hospital Oakland Research Institute, Oakland, CA, USA.
Frances Yue FanCenter for Immunobiology and Vaccine Development, UCSF Benioff Children's Hospital Oakland Research Institute, Oakland, CA, USA.
Deborah DeanCenter for Immunobiology and Vaccine Development, UCSF Benioff Children's Hospital Oakland Research Institute, Oakland, CA, USA.ORCID 0000-0003-3847-8838
UCSF Benioff Children's Hospital · USUniversity of California, San Francisco · US

Funding

Multiplex diagnostic for biothreat C. psittaci & non-threat respiratory pathogensR01AI098843 · NIAID · CHILDREN'S HOSPITAL & RES CTR AT OAKLAND · PI DEAN, DEBORAH ANNE, READ, TIMOTHY D. · 2012 to 2016
$5.5M
Pathogenesis of Persistent Chlamydial STDsR01AI039499 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI DEAN, DEBORAH ANNE · 1997 to 2007
$1.3M
NIAID NIH HHS R01 AI039499NIAID NIH HHS R01 AI098843
6 · The paper itself

Abstract

Chlamydia trachomatis (Ct) is a Gram-negative obligate intracellular pathogen of humans that causes significant morbidity from sexually transmitted and ocular diseases globally. Ct acquires host fatty acids (FA) to meet the metabolic and growth requirements of the organism. Lipid droplets (LDs) are storehouses of FAs in host cells and have been proposed to be a source of FAs for the parasitophorous vacuole, termed inclusion, in which Ct replicates. Previously, cells devoid of LDs were shown to produce reduced infectious progeny at 24 hr postinfection (hpi). Here, although we also found reduced progeny at 24 hpi, there were significantly more progeny at 48 hpi in the absence of LDs compared to the control wild-type (WT) cells. These findings were confirmed using transmission electron microscopy where cells without LDs were shown to have significantly more metabolically active reticulate bodies at 24 hpi and significantly more infectious but metabolically inert elementary bodies at 48 hpi than WT cells. Furthermore, by measuring basal oxygen consumption rates (OCR) using extracellular flux analysis, Ct infected cells without LDs had higher OCRs at 24 hpi than cells with LDs, confirming ongoing metabolic activity in the absence of LDs. Although the FA oleic acid is a major source of phospholipids for Ct and stimulates LD synthesis, treatment with oleic acid, but not other FAs, enhanced growth and led to an increase in basal OCR in both LD depleted and WT cells, indicating that FA transport to the inclusion is not affected by the loss of LDs. Our results show that Ct regulates inclusion metabolic activity and growth in response to host FA availability in the absence of LDs.

Indexed as

Cell Line, TumorChlamydia trachomatisFatty AcidsGrowth and DevelopmentHeLa CellsHost-Pathogen InteractionsHumansInclusion BodiesLipid DropletsOxygen ConsumptionPhospholipidsVacuolesFatty AcidsPhospholipidsChlamydia trachomatisfatty acidslipid dropletsmetabolismocular diseasesoxygen consumption ratesexually transmitted diseases

Identifiers

PMID29117636
PMCPMC5764794
OpenAlexW2767943707

What OpenQuestion holds

Textmetadata
LicenceTDM
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.