# The NANOS RNA-binding protein variants: a model for understanding human infertility

**Authors:** Amanda Kunik, Bellary Lakshmi, Jadwiga Jaruzelska, Kamila Kusz-Zamelczyk

PMC · DOI: 10.1007/s13353-025-01009-8 · Journal of Applied Genetics · 2025-10-18

## TL;DR

This paper explores how NANOS protein variants can help understand the causes of infertility by studying their role in germ cell development.

## Contribution

The paper proposes using NANOS variants as a model to uncover molecular pathways involved in human infertility.

## Key findings

- NANOS variants are linked to infertility in multiple species, including humans.
- Studying these variants can reveal molecular processes critical for germ cell development.
- This approach may lead to better diagnostics and treatments for infertility.

## Abstract

Infertility remains a significant global health challenge. With up to one in seven couples affected worldwide, the inability to conceive has become a major concern for reproductive health. Many causes of infertility are linked to genetic variants that are disruptive for germ cell homeostasis. Using causative variants to model human infertility can improve our understanding of the molecular pathways that regulate germ cell development. One notable example is the germ cell morphogen NANOS, which is highly conserved across species. Variants of NANOS are associated with infertility in various animal models, from Drosophila to humans. Here, we examine how modelling human infertility based on NANOS variants can offer insights into the molecular processes underlying germ cell development. Ultimately, uncovering the molecular basis of human infertility through this approach is vital for developing advanced diagnostic methods and therapeutic options in the future.

## Linked entities

- **Proteins:** nanos (nanos)
- **Species:** Drosophila (taxon 7215), Homo sapiens (taxon 9606)

## Full-text entities

- **Genes:** RBMS3 (RNA binding motif single stranded interacting protein 3) [NCBI Gene 27303]
- **Diseases:** Infertility (MESH:D007246)
- **Species:** Homo sapiens (human, species) [taxon 9606], Drosophila melanogaster (fruit fly, species) [taxon 7227]

## Full text

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## Figures

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Source: https://tomesphere.com/paper/PMC12605560