Zfp703, a gene with no common aliases provided, is involved in several important biological processes. It functions as a feedback suppressor of the Wnt/β -catenin signaling pathway, which controls embryonic development and adult stem cell maintenance [1]. Malregulation of this pathway can lead to embryonic malformations and cancer, highlighting Zfp703's significance in maintaining proper cellular function. Genetic models could be valuable for further studying its functions.

In embryonic stem cells, Zfp703 was shown to inhibit Wnt/β -catenin activity in reporter assays and Wnt -dependent mesoderm differentiation. It binds directly to Tcf1, inhibiting β -catenin/Tcf1 complex formation independently of the Groucho/Tle transcriptional corepressor [1]. Additionally, retinoic acid (RA) treatment of embryonic stem cells differentiated to neuromesodermal progenitors identified Zfp703 as an early RA signaling target, suggesting a role in controlling differentiation of these progenitors to neural and mesodermal lineages [2]. In the prostate gland, androgen deprivation led to transient expression of Zfp703, indicating its involvement in the gland's adaptation to a hypoandrogenic environment [3].

In conclusion, Zfp703 plays essential roles in regulating the Wnt/β -catenin signaling pathway, in the response to retinoic acid during differentiation of neuromesodermal progenitors, and in the prostate gland's adaptation to androgen deprivation. Studies using genetic models, though not specifically KO/CKO mouse models in the provided references, could potentially further elucidate its functions in these and related disease-relevant processes such as embryonic malformations, cancer, and prostatic diseases.