Evidence map›Paper›PMID 32671735›Full record

ArticleJournal of assisted reproduction and genetics2020

Culture of human ovarian tissue in xeno-free conditions using laminin components of the human ovarian extracellular matrix.

J Hao, A R Tuck, C R Prakash, A Damdimopoulos, M O D Sjödin, J Lindberg, B Niklasson, K Pettersson, O Hovatta, P Damdimopoulou

Open access · greenAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. The profile of steroid hormones in human fetal and adult ovaries.Reproductive biology and endocrinology : RB&E · 2024
    Article
  7. Effects of chemicalHuman reproduction open · 2024
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. 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

10 authors at 3 institutions in 2 countries.

J HaoDepartment of Reproductive Medicine, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China. haojiecs@126.com.
A R TuckDivision of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, 14186, Stockholm, Sweden.
C R PrakashDivision of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, 14186, Stockholm, Sweden.
A DamdimopoulosBioinformatics and Expression Analysis Core Facility, Karolinska Institute, 14186, Stockholm, Sweden.
M O D SjödinKarolinska Institute, Unit of Toxicology Sciences, Swetox, 15257, Södertälje, Sweden.
J LindbergKarolinska Institute, Unit of Toxicology Sciences, Swetox, 15257, Södertälje, Sweden.
B NiklassonDivision of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, 14186, Stockholm, Sweden.
K PetterssonDivision of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, 14186, Stockholm, Sweden.
O HovattaDivision of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, 14186, Stockholm, Sweden.
P DamdimopoulouDivision of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, 14186, Stockholm, Sweden.
Karolinska Institutet · SEKarolinska University Hospital · SECentral South University · CN

Funding

Svenska Forskningsrådet Formas 2015-00623Svenska Forskningsrådet Formas 2016-02031Swedish Childhood Cancer Foundation PR2017-0044Swedish Research Council 2017-02316
6 · The paper itself

Abstract

purposeOur purpose was to identify human ovarian extracellular matrix (ECM) components that would support in vitro culture of human ovarian tissue and be compatible with possible future clinical applications. We characterized ovarian expression of laminins and selected three laminin tripeptides for culture experiments to be compared with Matrigel, an undefined and animal-based mixture of ECM components.

methodsExpression of the 12 laminin genes was determined on transcript and protein levels using cortical tissue samples (n = 6), commercial ovary RNA (n = 1), follicular fluid granulosa cells (n = 20), and single-cell RNA-sequencing data. Laminin 221 (LN221), LN521, LN511, and their mixture were chosen for a 7-day culture experiment along with Matrigel using tissue from 17 patients. At the end of the culture, follicles were evaluated by scoring and counting from serial tissue sections, apoptosis measured using in situ TUNEL assay, proliferation by Ki67 staining, and endocrine function by quantifying steroids in culture media using UPLC-MS/MS.

resultsApproximately half of the cells in ovarian cortex expressed at least one laminin gene. The overall most expressed laminin α-chains were LAMA2 and LAMA5, β-chains LAMB1 and LAMB2, and γ-chain LAMC1. In culture experiments, LN221 enhanced follicular survival compared with Matrigel (p < 0.001), whereas tissue cultured on LN521 had higher proportion of secondary follicles (p < 0.001). LN511 and mixture of laminins did not support the cultures leading to lower follicle densities and higher apoptosis. All cultures produced steroids and contained proliferating cells.

conclusionsLN221 and LN521 show promise in providing xeno-free growth substrates for human ovarian tissue cultures, which may help in further development of folliculogenesis in vitro for clinical practices. The system could also be used for identification of adverse effects of chemicals in ovaries.

Indexed as

Tissue Culture TechniquesAdultChromatography, LiquidCollagenCulture MediaDrug CombinationsExtracellular MatrixFemaleGranulosa CellsHumansLamininMiddle AgedOvarian FollicleOvaryProteoglycansRNA-SeqCollagenCulture MediaDrug CombinationsLamininmatrigelProteoglycansHuman ovaryLamininsMatrigelTissue cultureXeno-free

Identifiers

PMID32671735
PMCPMC7492356
OpenAlexW3042969151

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.