PMID- 31725643 OWN - NLM STAT- MEDLINE DCOM- 20191206 LR - 20221005 IS - 1536-5964 (Electronic) IS - 0025-7974 (Print) IS - 0025-7974 (Linking) VI - 98 IP - 46 DP - 2019 Nov TI - Childhood adrenocortical tumor: A clinical and immunohistochemical study of 13 cases. PG - e17921 LID - 10.1097/MD.0000000000017921 [doi] LID - e17921 AB - The aim of the study was to investigate the molecular mechanisms in childhood adrenocortical tumors (ACTs), which is still unclear.A total of 9 girls and 4 boys with ACTs were enrolled. Relevant clinical features were obtained from records. Immunohistochemistry of vimentin, chromogranin A, S100, synaptophysin, cytokeratin (CK), type 2 3beta-hydroxysteroid dehydrogenase (3betaHSD), cytochrome P45017alpha, p53, p21, p27, cyclin D1, Ki-67, insulin growth facter-2 (IGF-2), and beta-catenin were undertaken for 13 tumors and 3 adjacent normal tissues. TP53 mutations in exon 2-11 were analyzed for 6 tumors and 3 blood samples.Virilization was the most common presentation (8/13, 61.5%). Immunohistochemically, p53 was positive in 8 of 13 ACTs and none in controls while p21 was positive in 12 of 13 ACTs and none in controls (P = .0036). Ki-67 was positive in 10 of 13 ACTs, but not in normal tissues (P = .0089). Although the expression of p27, cyclin D1, IGF-2 and beta-catenin were similar between the ACTs and controls, beta-catenin was noted in nuclear of 3 ACTs but not in controls. The difference of type 2 3betaHSD and P450c17alpha was not significant (P > .05, respectively). Four variants of TP53 were identified in the 6 tumors. C215G variant was found in 5 of 6 while A701G and G743A variants were found in 1 case, respectively. A novel C680G variant was also noted in 1 case. It was notable that C215G variant was found in the blood mononuclear cell of 3 patients.In conclusion, p53 variant and p21 overexpression, and abnormal beta-catenin distribution may be involved in the etiology and mechanism of childhood ACTs. FAU - Wu, Xiaohui AU - Wu X AD - Children's Hospital of Zhejiang University School of Medicine. FAU - Xu, Jun AU - Xu J AD - Children's Hospital of Zhejiang University School of Medicine. AD - Hangzhou Children's Hospital, Hangzhou, China. FAU - Wang, Jinhu AU - Wang J AD - Children's Hospital of Zhejiang University School of Medicine. FAU - Gu, Weizhong AU - Gu W AD - Children's Hospital of Zhejiang University School of Medicine. FAU - Zou, Chaochun AU - Zou C AD - Children's Hospital of Zhejiang University School of Medicine. LA - eng PT - Journal Article PT - Observational Study PL - United States TA - Medicine (Baltimore) JT - Medicine JID - 2985248R RN - 0 (Chromogranin A) RN - 0 (Ki-67 Antigen) RN - 0 (Poly-ADP-Ribose Binding Proteins) RN - 0 (Synaptophysin) RN - 0 (Vimentin) RN - 67763-97-7 (Insulin-Like Growth Factor II) RN - 68238-35-7 (Keratins) RN - EC 1.1.- (3-Hydroxysteroid Dehydrogenases) SB - IM MH - 3-Hydroxysteroid Dehydrogenases/biosynthesis MH - Adrenal Cortex Neoplasms/*epidemiology/*pathology/surgery MH - Age Factors MH - Child MH - Child, Preschool MH - Chromogranin A/biosynthesis MH - Female MH - Humans MH - Immunohistochemistry MH - Infant MH - Insulin-Like Growth Factor II/biosynthesis MH - Keratins/biosynthesis MH - Ki-67 Antigen/biosynthesis MH - Male MH - Poly-ADP-Ribose Binding Proteins/biosynthesis MH - Sex Factors MH - Synaptophysin/biosynthesis MH - Vimentin/biosynthesis MH - Virilism/*epidemiology PMC - PMC6867732 COIS- The authors have no conflicts of interests to disclose. EDAT- 2019/11/15 06:00 MHDA- 2019/12/18 06:00 PMCR- 2019/11/15 CRDT- 2019/11/15 06:00 PHST- 2019/11/15 06:00 [entrez] PHST- 2019/11/15 06:00 [pubmed] PHST- 2019/12/18 06:00 [medline] PHST- 2019/11/15 00:00 [pmc-release] AID - 00005792-201911150-00045 [pii] AID - MD-D-19-05329 [pii] AID - 10.1097/MD.0000000000017921 [doi] PST - ppublish SO - Medicine (Baltimore). 2019 Nov;98(46):e17921. doi: 10.1097/MD.0000000000017921.