PMID- 38433053 OWN - NLM STAT- MEDLINE DCOM- 20240305 LR - 20240305 IS - 0529-5807 (Print) IS - 0529-5807 (Linking) VI - 53 IP - 3 DP - 2024 Mar 8 TI - [Correlation of 1p/16q loss of heterozygosity and 1p gain with clinicopathological characteristics and prognosis in Wilms tumor]. PG - 257-263 LID - 10.3760/cma.j.cn112151-20230814-00066 [doi] AB - Objective: To investigate the relationship between 1p/16q loss of heterozygosity (LOH) and 1p gain in Wilms tumor and their clinicopathologic characteristics and prognosis. Methods: A total of 175 Wilms tumor samples received from the Department of Pathology, Beijing Children's Hospital from September 2019 to August 2022 were retrospectively analyzed. The histopathologic type and presence of lymph node involvement were evaluated by two pathologists. The clinical data including patients'gender, age, tumor location, preoperative chemotherapy, and tumor stage were summarized. Fluorescence in situ hybridization (FISH) was done to detect 1p/16q LOH and 1p gain and their correlation with the clinicopathological features and prognosis were analyzed. Results: Among the 175 samples, 86 cases (49.1%) were male and 89 (50.9%) were female. The mean age was (3.5+/-2.9) years, and the median age was 2.6 years. There were 26 (14.9%) cases with 1p LOH, 28 (16.0%) cases with 16q LOH, 10 (5.7%) cases of LOH at both 1p and 16q, and 53 (30.3%) cases with 1q gain. 1q gain was significantly associated with 1p LOH (P<0.01) and 16q LOH (P<0.01). There were significant differences (P<0.01) between 1q gain, 1p LOH and 16q LOH among different age groups. The rate of 16q LOH in the high-risk histopathological subtype (50.0%) was significantly higher than that in the intermediate-risk subtype (13.6%, P<0.05). The frequency of 1q gain, 1p LOH, and 16q LOH in children with advanced clinical stages (Ⅲ and Ⅳ) was significantly higher than that in children with early clinical stages (Ⅰ and Ⅱ). 1q gain, 1p LOH, and 16q LOH showed no significant correlation with gender, unilateral or bilateral disease, chemotherapy, or lymph node metastasis. The progression-free survival (PFS) time for patients with 1q gain and 1p LOH was significantly shorter than those without these aberrations (P<0.05). Additionally, the PFS time of patients with 16q LOH was slightly shorter than those with normal 16q, although the difference was not statistically significant. Patients with stage Ⅲ to Ⅳ disease exhibiting 1q gain or 1p LOH had a significantly higher relative risk of recurrence, metastasis, and mortality. Conclusions: 1p/16q LOH and 1q gain are associated with age, high-risk histological type, and clinical stage in Wilms tumor. 1q gain and 1p LOH are significantly correlated with the prognosis of Wilms tumor. FAU - Jia, C AU - Jia C AD - Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China. FAU - Yao, X F AU - Yao XF AD - Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China. FAU - Zhang, M AU - Zhang M AD - Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China. FAU - Guan, X X AU - Guan XX AD - Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China. FAU - Wang, J W AU - Wang JW AD - Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China. FAU - Song, H C AU - Song HC AD - Department of Urology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China. FAU - He, L J AU - He LJ AD - Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China. LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Bing Li Xue Za Zhi JT - Zhonghua bing li xue za zhi = Chinese journal of pathology JID - 0005331 SB - IM MH - Child MH - Humans MH - Female MH - Male MH - Child, Preschool MH - Infant MH - In Situ Hybridization, Fluorescence MH - Retrospective Studies MH - Prognosis MH - *Wilms Tumor/genetics MH - Chromosome Aberrations MH - *Kidney Neoplasms/genetics MH - Loss of Heterozygosity EDAT- 2024/03/04 00:44 MHDA- 2024/03/05 06:45 CRDT- 2024/03/03 21:53 PHST- 2024/03/05 06:45 [medline] PHST- 2024/03/04 00:44 [pubmed] PHST- 2024/03/03 21:53 [entrez] AID - 10.3760/cma.j.cn112151-20230814-00066 [doi] PST - ppublish SO - Zhonghua Bing Li Xue Za Zhi. 2024 Mar 8;53(3):257-263. doi: 10.3760/cma.j.cn112151-20230814-00066.