Evidence map›Paper›PMID 26024525›Full record

Trial reportPloS one2015

Short-Term PTEN Inhibition Improves In Vitro Activation of Primordial Follicles, Preserves Follicular Viability, and Restores AMH Levels in Cryopreserved Ovarian Tissue From Cancer Patients.

Edurne Novella-Maestre, Sonia Herraiz, Beatriz Rodríguez-Iglesias, César Díaz-García, Antonio Pellicer

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 2 pooled it
6.9field-weighted citation impact, top 3% 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

43 citing papers in PubMed, 2 syntheses or guidelines pooled it, 77 citations in OpenAlex.

  1. Biomechanics and mechanical signaling in the ovary: a systematic review.Journal of assisted reproduction and genetics · 2018
    Pooled it
  2. Guideline
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Effects of chemicalHuman reproduction open · 2024
    Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. The Aging Ovary and the Tales Learned Since Fetal Development.Sexual development : genetics, molecular biology, evolution, endocrinology, embryology, and pathology of sex determination and differentiation · 2023
    Review
  17. Review
  18. Article
  19. Review
  20. 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

5 authors at 3 institutions in 1 country.

Edurne Novella-MaestreUnidad de Genética, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Grupo de investigación de Medicina Reproductiva. Instituto de Investigación Sanitario La Fe. Valencia, Spain; Unidad de Preservación de la Fertilidad, Área de Salud de la Mujer. Hospital Universitario y Politécnico La Fe, Valencia, Spain.
Sonia HerraizGrupo de investigación de Medicina Reproductiva. Instituto de Investigación Sanitario La Fe. Valencia, Spain; Unidad de Preservación de la Fertilidad, Área de Salud de la Mujer. Hospital Universitario y Politécnico La Fe, Valencia, Spain.
Beatriz Rodríguez-IglesiasGrupo de investigación de Medicina Reproductiva. Instituto de Investigación Sanitario La Fe. Valencia, Spain; Unidad de Preservación de la Fertilidad, Área de Salud de la Mujer. Hospital Universitario y Politécnico La Fe, Valencia, Spain; IGENOMIX, Parc Cientific Valencia University, Paterna, Valencia, Spain.
César Díaz-GarcíaGrupo de investigación de Medicina Reproductiva. Instituto de Investigación Sanitario La Fe. Valencia, Spain; Unidad de Preservación de la Fertilidad, Área de Salud de la Mujer. Hospital Universitario y Politécnico La Fe, Valencia, Spain.
Antonio PellicerGrupo de investigación de Medicina Reproductiva. Instituto de Investigación Sanitario La Fe. Valencia, Spain; Unidad de Preservación de la Fertilidad, Área de Salud de la Mujer. Hospital Universitario y Politécnico La Fe, Valencia, Spain.
Hospital Universitari i Politècnic La Fe · ESInstituto de Investigación Sanitaria La Fe · ESIgenomix · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn vitro activation and growth of primordial dormant follicles to produce fertilizable oocytes would provide a useful instrument for fertility preservation. The employment of Phosphatase and TENsin homolog (PTEN) inhibitors, in combination with Protein kinase B (Akt) stimulating molecules, has been previously employed to increase follicular activation through the stimulation of the PTEN-Akt pathway.

methodsWe aim to establish improved in vitro activation also for cancer patients whose ovarian tissue has already been cryopreserved. Fresh and previously cryopreserved human ovarian cortex were exposed to short-term, low-concentration and ovary-specific treatment with only a PTEN inhibitor.

resultsOur in vitro activation protocol enhances the activation mechanisms of primordial follicles in both fresh and cryopreserved samples, and enlarges growing populations without inducing apoptosis in either follicles or the surrounding stroma. Treatment augments estradiol secretion and restores the expression levels of the previously diminished Anti-Müllerian hormone by means of cryopreservation procedures. Genomic modulation of the relative expression of PTEN pathway genes was found in treated samples.

conclusionThe in vitro activation protocol offers new alternatives for patients with cryopreserved tissue as it increases the pool of viable activated follicles available for in vitro growth procedures. The combination of ovarian tissue cryopreservation and in vitro activation of primordial follicles, the main ovarian reserve component, will be a major advancement in fertility preservation.

Indexed as

CryopreservationNeoplasmsOrgan PreservationAnti-Mullerian HormoneEnzyme InhibitorsFemaleHumansOvarian FolliclePTEN PhosphohydrolaseTissue SurvivalAnti-Mullerian HormoneEnzyme InhibitorsPTEN PhosphohydrolasePTEN protein, human

Identifiers

PMID26024525
PMCPMC4449215
OpenAlexW391225997

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.