Evidence map›Paper›PMID 34661801›Full record

ReviewJournal of assisted reproduction and genetics2021

Current scenario and challenges ahead in application of spermatogonial stem cell technology in livestock.

Balakrishnan Binsila, Sellappan Selvaraju, Rajan Ranjithkumaran, Santhanahalli Siddalingappa Archana, Balaganur Krishnappa, Subrata Kumar Ghosh, Harendra Kumar, Raghavendra B Subbarao, Arunachalam Arangasamy, Raghavendra Bhatta

Open access · greenAbstract readReview
In one paragraph

Review in Journal of assisted reproduction and genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 6 citations in OpenAlex.

  1. Male germ cell technologies in large animals.The Journal of reproduction and development · 2026
    Review
  2. Review
  3. Review
  4. Cells · 2023
    Article
  5. 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

10 authors at 3 institutions in 1 country.

Balakrishnan BinsilaReproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India. drbinsila@gmail.com.
Sellappan SelvarajuReproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
Rajan RanjithkumaranReproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
Santhanahalli Siddalingappa ArchanaReproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
Balaganur KrishnappaReproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
Subrata Kumar GhoshAnimal Reproduction Division, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, 243 122, India.
Harendra KumarAnimal Reproduction Division, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, 243 122, India.
Raghavendra B SubbaraoReproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
Arunachalam ArangasamyReproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
Raghavendra BhattaIndian council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
Indian Council of Agricultural Research · INNational Institute of Animal Nutrition and Physiology · INIndian Veterinary Research Institute · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSpermatogonial stem cells (SSCs) are the source for the mature male gamete. SSC technology in humans is mainly focusing on preserving fertility in cancer patients. Whereas in livestock, it is used for mining the factors associated with male fertility. The review discusses the present status of SSC biology, methodologies developed for in vitro culture, and challenges ahead in establishing SSC technology for the propagation of superior germplasm with special reference to livestock.

methodPublished literatures from PubMed and Google Scholar on topics of SSCs isolation, purification, characterization, short and long-term culture of SSCs, stemness maintenance, epigenetic modifications of SSCs, growth factors, and SSC cryopreservation and transplantation were used for the study.

resultThe fine-tuning of SSC isolation and culture conditions with special reference to feeder cells, growth factors, and additives need to be refined for livestock. An insight into the molecular mechanisms involved in maintaining stemness and proliferation of SSCs could facilitate the dissemination of superior germplasm through transplantation and transgenesis. The epigenetic influence on the composition and expression of the biomolecules during in vitro differentiation of cultured cells is essential for sustaining fertility. The development of surrogate males through gene-editing will be historic achievement for the foothold of the SSCs technology.

conclusionDetailed studies on the species-specific factors regulating the stemness and differentiation of the SSCs are required for the development of a long-term culture system and in vitro spermatogenesis in livestock. Epigenetic changes in the SSCs during in vitro culture have to be elucidated for the successful application of SSCs for improving the productivity of the animals.

Indexed as

Adult Germline Stem CellsAnimalsCell Culture TechniquesCell TransplantationFertilityIn Vitro TechniquesLivestockMaleSpermatogenesisSpermatogoniaStem CellsCryopreservationCulture systemGrowth factorsIsolationLivestockSpermatogonial stem cell

Identifiers

PMID34661801
PMCPMC8666404
OpenAlexW3207764976

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.