ArticleCommunications biology2025
A long non-coding RNA Leat1 mediates the hormone responsiveness of EfnB2 during male urogenital development.
Article in Communications biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The novel long non-coding RNA (lncRNA) Leat1 is extraordinarily conserved in both its location (syntenic with EfnB2, an essential gene in anogenital patterning) and sequence. Here we show that Leat1 is upregulated following the production of testosterone from the developing testis in mice and interacts with EfnB2, positively regulating its expression. Leat1 expression is suppressed by estrogen, which in turn suppresses the expression of EfnB2. Moreover, the loss of Leat1 leads to reduced EfnB2, resulting in a severe hypospadias phenotype. The human LEAT1 gene is also co-expressed with EFNB2 in the developing human penis, suggesting a conserved function for this gene in urethral closure. Together our data identify Leat1 as a novel molecular regulator of urethral closure and implicate it as a target of endocrine disruption in the etiology of hypospadias.
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