The objective of this study was to investigate the prognostic significance of the frequency of primary cilia (PC) and β-catenin expression in 218 patients (pts) with non-small cell lung cancer (NSCLC), including 125 pts with adenocarcinoma and 93 pts with squamous cell carcinoma. In the whole group of 218 pts with NSCLC, overall survival (OS) was significantly inferior among pts with present PC than without PC (p=0.024) and with higher cytoplasmic β-catenin expression (25-75%) than with lower cytoplasmic β-catenin expression (<25%) (p=0.008). In the univariate Cox proportional hazard model, the hazard ratio was 1.653 in pts with present PC (p=0.026) and 1.851 in pts with higher cytoplasmic β-catenin (25-75%) (p=0.009). Multivariate testing of the whole group of 218 pts with NSCLC showed that the presence of PC was associated with a worse prognosis (p=0.018). In the subgroup of 125 pts with adenocarcinoma, OS was significantly improved in pts with higher membranous β-catenin expression (≥50%) than in pts with lower expression (<50%) (p=0.0300) and OS was significantly inferior in pts with higher cytoplasmic β-catenin expression (25-75%) than in pts with lower expression (<25%) (p=0.0004). Multivariate testing of the subgroup of pts with adenocarcinoma showed that cytoplasmic β-catenin (p<0.001) and pleural invasion (p=0.017) were associated with worse prognosis. The present results indicate a negative prognostic significance of PC and cytoplasmic β-catenin expression in NSCLC and a negative prognostic significance of cytoplasmic β-catenin expression in adenocarcinoma.

• MeSH
• adenokarcinom patologie   metabolismus   mortalita   MeSH
• beta-katenin * metabolismus   MeSH
• cilie * patologie   metabolismus   MeSH
• cytoplazma * metabolismus   MeSH
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• nádorové biomarkery metabolismus   MeSH
• nádory plic * patologie   metabolismus   mortalita   MeSH
• nemalobuněčný karcinom plic * patologie   metabolismus   mortalita   MeSH
• prognóza MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• spinocelulární karcinom patologie   metabolismus   mortalita   MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

The aim of this study was to investigate the prognostic significance of membranous β-catenin and cytoplasmic β-catenin expression in pancreatic cancer patients (pts). One hundred pts with histologically verified exocrine pancreatic ductal adenocarcinoma were retrospectively studied. The membranous β-catenin, cytoplasmic β-catenin, and cell nucleus β-catenin expression were immunohistochemically evaluated. The expression of membranous β-catenin was <5% in none of the pts, 5-25% in one patient, 26-50% in 2 pts, 51-75% in 14 pts, and >75% in 81 pts. The expression of cytoplasmic β-catenin was <5% in 34 pts, 5-25% in 42 pts, 26-50% in 18 pts, 51-75% in 3 pts, and >75% in one patient. The expression of β-catenin in the cell nucleus was negative in all pts. At the time of the last follow-up, 21 pts were alive and 79 pts had died. Median OS was 1.3 (0.4-2.3) years in pts with membranous β-catenin expression ≤75% and 1.7 (1.3-2.1) years in pts with membranous β-catenin expression >75% (p=0.045). Median OS was (1.3-2.0) 1.6 years in pts with cytoplasmic β-catenin expression ≤25% and 0.9 (0.5-1.2) years in pts with cytoplasmic β-catenin expression >25% (p=0.040). In the univariate Cox proportional hazard models HR (95% CI) was 0.556 (0.311-0.995) in pts with membranous β-catenin expression >75% (p=0.048) and 2.200 (1.216-3.980) in pts with cytoplasmic β-catenin expression >25% (p=0.009). The present results indicate a favorable prognostic significance of membranous β-catenin expression in pancreatic cancer.

• MeSH
• beta-katenin * genetika   metabolismus   MeSH
• duktální karcinom slinivky břišní * diagnóza   genetika   MeSH
• lidé MeSH
• nádory slinivky břišní * diagnóza   genetika   MeSH
• prognóza MeSH
• retrospektivní studie MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH

ALK-fused spitzoid neoplasms represent a distinctive group of melanocytic lesions. To date, few studies addressed genetic and chromosomal alterations in these lesions beyond the ALK rearrangements. Our objective was to study genetic alterations, including ALK gene fusions, telomerase reverse transcriptase promoter (TERT-p) mutations, chromosomal copy number changes, and mutations in other genes. We investigated 29 cases of Spitz lesions (11 Spitz nevi and 18 atypical Spitz tumors), all of which were ALK immunopositive. There were 16 female and 13 male patients, with age ranging from 1 to 43 years (mean, 18.4 years). The most common location was the lower extremity. Microscopically, all neoplasms were polypoid or dome shaped with a plexiform, predominantly dermally located proliferation of fusiform to spindled melanocytes with mild to moderate pleomorphism. The break-apart test for ALK was positive in 17 of 19 studied cases. ALK fusions were detected in 23 of 26 analyzable cases by Archer FusionPlex Solid Tumor Kit. In addition to the previously described rearrangements, 3 novel fusions, namely, KANK1-ALK, MYO5A-ALK, and EEF2-ALK, were found. Fluorescence in situ hybridization for copy number changes yielded one case with the loss of RREB1 among 21 studied cases. TERT-p hotspot mutation was found in 1 of 23 lesions. The mutation analysis of 271 cancer-related genes using Human Comprehensive Cancer Panel was performed in 4 cases and identified in each case mutations in several genes with unknown significance, except for a pathogenic variant in the BLM gene. Our study confirms that most ALK fusion spitzoid neoplasms can be classified as atypical Spitz tumors, which occurs in young patients with acral predilection and extends the spectrum of ALK fusions in spitzoid lesions, including 3 hitherto unreported fusions. TERT-p mutations and chromosomal copy number changes involving 6p25 (RRB1), 11q13 (CCND1), 6p23 (MYB), 9p21 (CDKN2A), and 8q24 (MYC) are rare in these lesions. The significance of mutation in other genes remains unknown.

• MeSH
• anaplastická lymfomová kináza genetika   MeSH
• dítě MeSH
• dospělí MeSH
• epiteloidní a vřetenobuněčný névus genetika   patologie   MeSH
• fúzní onkogenní proteiny genetika   MeSH
• hybridizace in situ fluorescenční MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mutace MeSH
• mutační analýza DNA metody   MeSH
• nádory kůže genetika   patologie   MeSH
• onkogenní fúze genetika   MeSH
• předškolní dítě MeSH
• promotorové oblasti (genetika) genetika   MeSH
• sekvenční analýza DNA MeSH
• telomerasa genetika   MeSH
• variabilita počtu kopií segmentů DNA MeSH
• vysoce účinné nukleotidové sekvenování MeSH
• Check Tag
• dítě MeSH
• dospělí MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• předškolní dítě MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH