{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nThe human tissue kallikrein (KLK) gene family, clustered on chromosome 19, comprises 15 genes whose diverse expression patterns have been linked to several diseases, including various cancers. Although KLKP1 is not extensively characterized in this context, its inclusion in the broader KLK gene family suggests it may share regulatory or modulatory roles in the proteolytic activities that underpin tissue homeostasis and tumorigenesis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "Dis primis duis mauris potenti non at sociosqu ultricies massa. Tincidunt vel sagittis quam convallis varius phasellus tincidunt. In prostate cancer research, established KLK members such as prostate specific antigen (PSA) have long served as critical biomarkers. Recent studies, however, have expanded focus to include other KLK-related genes—which might complement PSA detection—and underscore the potential of novel KLK-derived sequences in refining diagnostic strategies."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "Fusce class lectus fringilla commodo sit blandit pellentesque. Most notably, a fusion event generating the KLK4::KLKP1 pseudogene has been recently described. This fusion, enriched in prostate cancer tissues, highlights KLKP1’s emerging role not as a conventional protease but as a component of a novel biomarker construct. The characterization of this fusion pseudogene, particularly in under-studied populations such as those in the Middle East, suggests that it may have significant implications for advancing both the molecular understanding and clinical management of prostate cancer."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": ""}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Wei Lu, Daixing Zhou, Gustavo Glusman, et al. "}, {"type": "b", "children": [{"type": "t", "text": "KLK31P is a novel androgen regulated and transcribed pseudogene of kallikreins that is expressed at lower levels in prostate cancer cells than in normal prostate cells."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Prostate (2006)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1002/pros.20382"}], "href": "https://doi.org/10.1002/pros.20382"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "16541416"}], "href": "https://pubmed.ncbi.nlm.nih.gov/16541416"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Aneel Kaushal, Stephen A Myers, Ying Dong, et al. "}, {"type": "b", "children": [{"type": "t", "text": "A novel transcript from the KLKP1 gene is androgen regulated, down-regulated during prostate cancer progression and encodes the first non-serine protease identified from the human kallikrein gene locus."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Prostate (2008)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1002/pros.20685"}], "href": "https://doi.org/10.1002/pros.20685"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "18196551"}], "href": "https://pubmed.ncbi.nlm.nih.gov/18196551"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "Andrea Bakker, Jonathan C Slack, Nalla Palanisamy, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Loss of KLK4::KLKP1 pseudogene expression by RNA chromogenic in-situ hybridization is associated with PTEN loss and increased risk of biochemical recurrence in a cohort of middle eastern men with prostate cancer."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Cancer Res Clin Oncol (2023)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1007/s00432-022-04279-5"}], "href": "https://doi.org/10.1007/s00432-022-04279-5"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "35982181"}], "href": "https://pubmed.ncbi.nlm.nih.gov/35982181"}]}]}]}