{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nAlthough the provided abstracts do not explicitly mention LINC01237, the studies focus on specialized proteases expressed in the placenta that serve critical roles in tissue remodeling and trophoblast function during gestation. In the first study, a family of placentally expressed cysteine proteases (cathepsins M, P, Q, and R) is described, with species‐ and strain‐specific variations that indicate rapid evolutionary divergence in rodents. These enzymes, although not directly identified in humans, appear highly conserved around key substrate‐specificity sites, suggesting their essential functions in placental development and proteolytic processing in rodents."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nThe second abstract reports on the spatial and temporal expression of cathepsin M, Q, and R in the mouse placenta during mid-to-late gestation. These proteases exhibit expression patterns paralleling that of mPL-II and are predominantly localized to trophoblast cells in both the basal and labyrinth zones, indicating potential interactive or regulatory roles during critical phases of placental maturation. This study underscores the importance of tightly coordinated gene expression in placental function."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nThe third report further characterizes cathepsin M and a closely related cathepsin-3, noting their exclusive expression in the murine placenta and the presence of multiple splice variants. The restricted, spatiotemporal expression of these proteases, particularly in the spongiotrophoblast layer, reinforces the concept that precise regulation of proteolytic activity is crucial during placental development. In contrast, while LINC01237 is not discussed in these studies, its mention in the current query suggests potential interest in whether this long non-coding RNA might influence or be influenced by similar mechanisms of placental regulation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": ""}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Katia Sol-Church, Gina N Picerno, Deborah L Stabley, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Evolution of placentally expressed cathepsins."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Biochem Biophys Res Commun (2002)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/S0006-291X(02)00167-5"}], "href": "https://doi.org/10.1016/S0006-291X(02"}, {"type": "t", "text": "00167-5) PMID: "}, {"type": "a", "children": [{"type": "t", "text": "12054558"}], "href": "https://pubmed.ncbi.nlm.nih.gov/12054558"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Michiyo Ishida, Kota Ono, Sachiko Taguchi, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Cathepsin gene expression in mouse placenta during the latter half of pregnancy."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Reprod Dev (2004)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1262/jrd.50.515"}], "href": "https://doi.org/10.1262/jrd.50.515"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "15514457"}], "href": "https://pubmed.ncbi.nlm.nih.gov/15514457"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "Salima Bode, Christoph Peters, Jan M Deussing "}, {"type": "b", "children": [{"type": "t", "text": "Placental cathepsin M is alternatively spliced and exclusively expressed in the spongiotrophoblast layer."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Biochim Biophys Acta (2005)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.bbaexp.2005.10.005"}], "href": "https://doi.org/10.1016/j.bbaexp.2005.10.005"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "16297992"}], "href": "https://pubmed.ncbi.nlm.nih.gov/16297992"}]}]}]}