Evidence map›Paper›PMID 38421455›Full record

ArticleCellular and molecular life sciences : CMLS2024

Spem2, a novel testis-enriched gene, is required for spermiogenesis and fertilization in mice.

Chaojie Li, Chunling Shen, Wenfeng Xiong, Haoyang Ge, Yan Shen, Jun Chi, Hongxin Zhang, Lingyun Tang, Shunyuan Lu, Jinjin Wang and 2 more

Open access · goldAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
7.0field-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

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Advances in Research on Models of Oligoasthenozoospermia.Reproductive sciences (Thousand Oaks, Calif.) · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Protective effects of corn silk andToxicology research · 2025
    Article
  7. TEX38 localizes ZDHHC19 to the plasma membrane and regulates sperm head morphogenesis in mice.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
  9. Review
  10. 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

12 authors at 2 institutions in 1 country.

Chaojie LiState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Chunling ShenState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Wenfeng XiongState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Haoyang GeState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Yan ShenState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Jun ChiShanghai Engineering and Technology Research Center for Model Animals, Shanghai Model Organisms Center, Inc, Shanghai, 201203, China.
Hongxin ZhangState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Lingyun TangState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Shunyuan LuState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China.
Jinjin WangShanghai Engineering and Technology Research Center for Model Animals, Shanghai Model Organisms Center, Inc, Shanghai, 201203, China.
Jian FeiShanghai Engineering and Technology Research Center for Model Animals, Shanghai Model Organisms Center, Inc, Shanghai, 201203, China.
Zhugang WangState Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200025, China. zhugangw@shsmu.edu.cn.ORCID http://orcid.org/0000-0002-2626-4122
Shanghai Jiao Tong University · CNShanghai Model Organisms (China) · CN

Funding

National Natural Science Foundation of China 81430028National Natural Science Foundation of China 81900799National Natural Science Foundation of China 81901529National Natural Science Foundation of China 81971462Science and Technology Commission of Shanghai Municipality 18ZR1423500Science and Technology Commission of Shanghai Municipality 19DZ2280500Science and Technology Commission of Shanghai Municipality 19YF1430400
6 · The paper itself

Abstract

Spermiogenesis is considered to be crucial for the production of haploid spermatozoa with normal morphology, structure and function, but the mechanisms underlying this process remain largely unclear. Here, we demonstrate that SPEM family member 2 (Spem2), as a novel testis-enriched gene, is essential for spermiogenesis and male fertility. Spem2 is predominantly expressed in the haploid male germ cells and is highly conserved across mammals. Mice deficient for Spem2 develop male infertility associated with spermiogenesis impairment. Specifically, the insufficient sperm individualization, failure of excess cytoplasm shedding, and defects in acrosome formation are evident in Spem2-null sperm. Sperm counts and motility are also significantly reduced compared to controls. In vivo fertilization assays have shown that Spem2-null sperm are unable to fertilize oocytes, possibly due to their impaired ability to migrate from the uterus into the oviduct. However, the infertility of Spem2

Indexed as

Infertility, MaleSpermatogenesisTestisAnimalsFertilinsMaleMammalsMiceSemenSperm-Ovum InteractionsADAM2 protein, humanFertilinsCytoplasmic dropletCytoplasm removalGene knockoutMale reproductionSpermatogenesis

Identifiers

PMID38421455
PMCPMC10904452
OpenAlexW4392286003

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.