[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-333073-105":59,"doc-detail-333073-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","germline-pot1-variants-a-critical-perspective-on-pot1-tumor-predisposition-syndrome","Germline POT1 Variants - A Critical Perspective on POT1 Tumor Predisposition Syndrome","","The Protection of Telomere 1 (POT1) gene was identified as a melanoma predisposition candidate nearly a decade ago, and germline POT1 variants have since been linked to the broader POT1 predisposition tumor syndrome (POT1–TPD). While POT1 alterations’ key role and risks in melanoma are well established, evidence remains partial for associations with other cancers, driven by the rarity of POT1–TPD. Reported issues include missing functional or segregation evidence, biased datasets, and the need for updated variant classification. The article critically reviews the last ten years of published correlations between POT1 variants and cancers beyond cutaneous melanoma, and discusses surveillance proposals, emphasizing reliable data to avoid excessive burden for variant carriers.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/germline-pot1-variants-a-critical-perspective-on-pot1-tumor-predisposition-syndrome/333073/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/germline-pot1-variants-a-critical-perspective-on-pot1-tumor-predisposition-syndrome/333073.png","ImageObject",300,407,{"name":92,"@type":93},"Logic","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-04","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is the evidence for cancer risk beyond cutaneous melanoma considered limited for germline POT1 variants?","Question",{"text":112,"@type":113},"The article notes partial correlation with other cancers due to the rarity of POT1–TPD and several evidence gaps across studies. These include absence of functional or segregation studies and possible biased datasets.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What role does POT1 play in telomere biology?",{"text":117,"@type":113},"POT1 is a shelterin subunit encoded on chromosome 7q31.33 that binds single-stranded telomeres through OB1 and OB2 domains via interaction with TPP1/ACD. It protects chromosome ends, supports telomere regulation, and contributes to genomic stability and senescence control.",{"name":119,"@type":110,"acceptedAnswer":120},"What concerns are raised about surveillance protocols for cancers associated with POT1 pathogenic variants?",{"text":121,"@type":113},"A surveillance protocol requires reliable data to prevent an excessive, possibly unjustified, burden on POT1 variant carriers. The article highlights the need to address uncertainties and grey areas in published associations.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},333073,1790397586,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},1099513958762,"https://ap-avatar.wpscdn.com/avatar/1000023916a998db790?x-image-process=image/resize,m_fixed,w_180,h_180&k=1784791008015729253","Review  \nGermline POT1 Variants: A Critical Perspective on POT1 Tumor Predisposition Syndrome  \nVirginia Andreotti 1, Irene Vanni 1, Lorenza Pastorino 1,2, Paola Ghiorzo 1,2 and William Bruno 1,2, *  \nCitation: Andreotti, V.; Vanni, I.; Pastorino, L.; Ghiorzo, P.; Bruno, W. Germline POT1 Variants: A Critical Perspective on POT1 Tumor Predisposition Syndrome. Genes 2024, 15, 104. [https://doi.org/10.3390/](https://doi.org/10.3390/)[ ](https://doi.org/10.3390/)genes15010104  \nAcademic Editors: Rodolfo Iuliano and Francesco Baudi  \nReceived: 18 December 2023  \nRevised: 10 January 2024  \nAccepted: 13 January 2024  \nPublished: 16 January 2024  \nCopyright: © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ([https://](https://)[ ](https://)[creativecommons.org/licenses/by/](creativecommons.org/licenses/by/)[ ](creativecommons.org/licenses/by/)[4.0/](4.0/)) .  \n1 Genetics of Rare Cancers, IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genoa, Italy; [virginia.andreotti@hsanmartino.it](virginia.andreotti@hsanmartino.it) (V.A.); [irene.vanni@hsanmartino.it](irene.vanni@hsanmartino.it) (I.V.); [lorenza.pastorino@unige.it](lorenza.pastorino@unige.it) (L.P.); [paola.ghiorzo@unige.it](paola.ghiorzo@unige.it) (P.G.)  \n2 Department of Internal Medicine and Medical Specialties (DiMI), University of Genoa, V.le Benedetto XV 6, 16132 Genoa, Italy  \n* [Correspondence: william.bruno@unige.it](Correspondence: william.bruno@unige.it)  \nAbstract: The Protection of Telomere 1 (POT1) gene was identified as a melanoma predisposition candidate nearly 10 years ago. Thereafter, various cancers have been proposed as associated with germline POT1 variants in the context of the so-called POT1 Predisposition Tumor Syndrome (POT1–TPD) . While the key role, and related risks, of the alterations in POT1 in melanoma are established, the correlation between germline POT1 variants and the susceptibility to other cancers partially lacks evidence, due also to the rarity of POT1–TPD. Issues range from the absence of functional or segregation studies to biased datasets or the need for a revised classification of variants. Furthermore, a proposal of a surveillance protocol related to the cancers associated with POT1 pathogenic variants requires reliable data to avoid an excessive, possibly unjustified, burden for POT1 variant carriers. We propose a critical perspective regarding data published over the last 10 years that correlate POT1 variants to various types of cancer, other than cutaneous melanoma, to offer food for thought for the specialists who manage cancer predisposition syndromes and to stimulate a debate on the grey areas that have been exposed.  \nKeywords: POT1; pathogenic variants; germline; melanoma; cancer predisposition; telomeres  \n1. Introduction  \nProtection of Telomere 1 (POT1), encoded by a gene on chromosome 7q31.33, is a key subunit of the shelterin telomere binding complex, which protects cells from inappropriate DNA damage response and plays a critical role in telomere regulation. In particular, OB1 and OB2 domains at the N terminus of this essential subunit bind the terminal portions of single-stranded telomeres (ssDNA, TTAGGG repeats) through the interaction with TPP1/ACD, another component of the shelterin complex. The shortening of telomeres occurs at each cell cycle, and POT1 and the shelterin complex protect the ends of chromosomes from instability and regulate their length [1,2] . As an integral part of a complex capable of controlling cellular senescence mechanisms, POT1 plays a key role in telomere homeostasis, while it also acts as a genomic stabilizer [3] . Studies showed that pathogenic variants in the POT1 gene are associated with the alteration of the telomere length and a subsequent increased risk for cancer. Therefore, it is a gene of interest in studying cancer progres","cbCain325I4f4Lkj","https://ap.wps.com/l/cbCain325I4f4Lkj","pdf",919650,11,"English","# Abstract\n# Introduction\n## POT1 structure and shelterin function\n## Early evidence for melanoma susceptibility\n## Expanding cancer spectrum and evidence gaps","[{\"question\":\"Why is the evidence for cancer risk beyond cutaneous melanoma considered limited for germline POT1 variants?\",\"answer\":\"The article notes partial correlation with other cancers due to the rarity of POT1–TPD and several evidence gaps across studies. These include absence of functional or segregation studies and possible biased datasets.\"},{\"question\":\"What role does POT1 play in telomere biology?\",\"answer\":\"POT1 is a shelterin subunit encoded on chromosome 7q31.33 that binds single-stranded telomeres through OB1 and OB2 domains via interaction with TPP1/ACD. It protects chromosome ends, supports telomere regulation, and contributes to genomic stability and senescence control.\"},{\"question\":\"What concerns are raised about surveillance protocols for cancers associated with POT1 pathogenic variants?\",\"answer\":\"A surveillance protocol requires reliable data to prevent an excessive, possibly unjustified, burden on POT1 variant carriers. The article highlights the need to address uncertainties and grey areas in published associations.\"}]","Germline POT1 Variants - A Critical Perspective on POT1 Tumor Predisposition Syndrome | PDF",1790000707,28]