OBJECTIVE: The expression of C/EBPα, CK10 in nasal inverted papilloma (NIP) were detected in the study. Further discussed their significance in genesia, development and recurrence of NIP. METHOD: Three groups including nasal cavity mucosae (NM 10 cases), nasal polyp (NP 20 cases) and NIP (30 cases) were selected in the study. Expretion of C/EBPα, CK10 were detected by immunohistochemisty PV-6000 method. RESULT: (1) The different expression of C/EBPα and CK10 in the group of NM, NP and NIP was statistically significant (P < 0.05). (2) The different expression of C/EBPα, CK10 in the group of benign NIP and NIP with atypical hyperplasia was statistically significant (P < 0.05). (3) The different expression of C/EBPα and CK10 in the group of NIP with recurrence and NIP with no recurrence was statistically significant, P < 0.05, respectively. (4) Our result indicate that the relationship of C/EBPα and CK10 (r = 0.578, P < 0.01) was direct correlation. The difference was statistically significant. CONCLUSION In conclusion, the present results describe C/EBPα, CK10 expression in NIP and their possible implication in the regulation of tumor growth and differentiation. C/EBPα and CK10 production may prove useful in terms of a prognostic marker for the recurrence in nasal inverted papilloma.
CCAAT-Enhancer-Binding Proteins ; genetics ; metabolism ; Humans ; Keratin-10 ; genetics ; metabolism ; Nasal Polyps ; genetics ; metabolism ; Neoplasm Recurrence, Local ; Nose ; Nose Neoplasms ; genetics ; metabolism ; Papilloma, Inverted ; genetics ; metabolism

OBJECTIVETo compare the molecular basis difference between recurrent respiratory papillomatosis (RRP) and vocal cord polyp, to analyze the expression of glycan structural genes, and to discuss the pathopoiesis mechanism of RRP.

METHODSThe gene expressing profile between the 3 groups papilloma and the vocal cord polyp regarded as normal larynx epithelium were compared using mRNA parallel amplify and the human genome gene expressing microarray. Through cluster analysis, Gene Ontology function gene annotation and path way analysis, the relative gene of RRP and HPV infection were acquired.

RESULTSAccording to three microarrays results, total 567 expression changed genes related to HPV induce RRP were acquired. A serial change of glycan structure biosynthesis and degradation pathways was significant. The expression of dolichyl-phosphate mannosyltransferase polypeptide 1 (DPM1), asparagine-linked glycosylation 1 homolog (ALG1), fucosyltransferase 8 (FUT8) and alpha-mannosidase 1A (MAN1A) were regulated and beta-hexosaminidase (HEXB), beta1-galactosidase (GLB1), exostoses 1 (EXT1), fucosyltransferase (FUT) reduced expression and heparan sulfate 3-O-sulfotransferase 1 (HS3ST3A1) increased expression. The two related enzymes of the glycosphingolipids which is the main composed of the cell membrane, beta-3-N-acetylglucosaminyltransferase 4 (B3GNT4) and UDP-glucose ceramide glucosyltransferase (UGCG) increase expression, HEXB and GLB1 reduced expression.

CONCLUSIONSThe alteration of the coding genes of glycan structure biosynthesis and degradation pathways were significantly and characteristically in pathopoiesis mechanism of RRP. This abnormality may be the beginning of tumor form HPV infection.

Adult ; Gene Expression Profiling ; Glycolipids ; genetics ; Glycoproteins ; genetics ; Humans ; Laryngeal Neoplasms ; genetics ; pathology ; virology ; Oligoribonucleotides ; genetics ; Papilloma ; genetics ; pathology ; virology ; Papillomaviridae ; genetics ; Polyps ; genetics ; pathology ; virology ; Respiratory Tract Neoplasms ; genetics ; pathology ; virology ; Vocal Cords ; pathology

Objective: To investigate the gene mutation of telomerase reverse transcriptase (TERT) promoter in inverted urothelial lesions of the bladder and its significance in differential diagnosis. Methods: From March 2016 to February 2022, a total of 32 patients with inverted urothelial lesions diagnosed in Department of Pathology at Qingdao Chengyang People's Hospital and 24 patients at the Affiliated Hospital of Qingdao University were collected, including 7 cases of florid glandular cystitis, 13 cases of inverted urothelial papilloma, 8 cases of inverted urothelial neoplasm with low malignant potential, 17 cases of low-grade non-invasive inverted urothelial carcinoma, 5 cases of high-grade non-invasive inverted urothelial carcinoma, and 6 cases of nested subtype of urothelial carcinoma were retrospectively analyzed for their clinical data and histopathological features. TERT promoter mutations were analyzed by Sanger sequencing in all the cases. Results: No mutations in the TERT promoter were found in the florid glandular cystitis and inverted urothelial papilloma. The mutation rates of the TERT promoter in inverted urothelial neoplasm with low malignant potential, low grade non-invasive inverter urothelial carcinoma, high grade non-invasive inverted urothelial carcinoma and nested subtype urothelial carcinoma were 1/8, 8/17, 2/5 and 6/6, respectively. There was no significant difference in the mutation rate of TERT promoter among inverted urothelial neoplasm with low malignant potential, low-grade non-invasive inverted urothelial carcinoma, and high-grade non-invasive inverted urothelial carcinoma (P>0.05). All 6 cases of nested subtype of urothelial carcinoma were found to harbor the mutation, which was significantly different from inverted urothelial neoplasm with low malignant potential and non-invasive inverted urothelial carcinoma (P<0.05). In terms of mutation pattern, 13/17 of TERT promoter mutations were C228T, 4/17 were C250T. Conclusions: The morphology combined with TERT promoter mutation detection is helpful for the differential diagnosis of bladder non-invasive inverted urothelial lesions.
Humans ; Urinary Bladder Neoplasms/genetics* ; Carcinoma, Transitional Cell/pathology* ; Urinary Bladder/pathology* ; Diagnosis, Differential ; Retrospective Studies ; Mutation ; Cystitis/genetics* ; Neoplasms, Glandular and Epithelial/diagnosis* ; Papilloma/diagnosis* ; Telomerase/genetics*

OBJECTIVE: To investigate the expression and significance of muscle segment homeobox2 (Msx2) and topo II-alpha in sinonasal inverted papilloma (SNIP), and the relationship in the process of malignant transformation of SNIP. METHOD: Immunohistochemical method was used to detect the expression of Msx2 and topo II-alpha in 32 cases of SNIP, 30 cases of inflammatory nasal polyp (INP) and 30 cases of SNIP with carcinoma. According to the pathology results, SNIP were divided into mild atypical hyperplasia, moderate atypical hyperplasia and severe atypical hyperplasia. RESULT: The mean optical density of Msx2 in SNIP and SNIP with carcinoma tissues were 0.2183 +/- 0.0598 and 0.2521 +/- 0.0761,which were significantly higher than 0.1878 +/- 0. 0372 in the INP tissue (P<0.05 or 0.01). The mean optical density of topo II-alpha in SNIP and SNIP with carcinoma tissues were 0.2303 +/- 0.0397 and 0.2666 +/- 0.0483, which were significantly higher than 0.1978 +/- 0.0388 in the NIP tissue (P<0.01). There were significant difference of Msx2 and topo II-alpha in SNIP between any two of the three groups divided according to pathological morphology (P<0.01 or 0.05). The expression of Msx2 and topo II-alpha in SNIP were positively correlated (P<0.05). CONCLUSION Msx2 and topo II-alpha may play an important role in the occurrence and development of SNIP. So it can be used as new therapeutic targets.
Antigens, Neoplasm ; genetics ; metabolism ; DNA Topoisomerases, Type II ; genetics ; metabolism ; DNA-Binding Proteins ; genetics ; metabolism ; Female ; Homeodomain Proteins ; genetics ; metabolism ; Humans ; Male ; Middle Aged ; Nose Neoplasms ; genetics ; metabolism ; pathology ; Papilloma, Inverted ; genetics ; metabolism ; pathology

OBJECTIVE: To study the expressions of FSCN1 and HGF in nasal inverted papilloma (NIP) and explore their role in occurrence and development of this disease. METHOD: Immunohistochemical method was used to determine the expression of FSCN1 and HGF in 12 cases of chronic hypertrophic rhinitis, 40 cases of NIP and 14 cases of NIP with malignant transformation. RESULT: FSCN1 was expressed in 52.5% of NIP, 78.6% of NIP with malignant transformation and 8.3% of inferior turbinate of chronic hypertrophic rhinitis. Expression of FSCN1 was significantly higher in NIP and NIP with malignant transformation than in inferior turbinate (P<0.05). HGF was expressed in 85.7% of NIP with malignant transformation and 8.3% of inferior turbinate. Expression of HGF was significantly higher in NIP with malignant transformation than in inferior turbinate (P<0.05). HGF was expressed in 40.0% of NIP,which was higher than that of inferior turbinate. Expression of HGF was positively related to expression of FSCN1 in NIP and NIP with malignant transformation. CONCLUSION The abnormal expression of FSCN1 and HGF may be closely correlated with NIP and its malignant process. Analysis of FSCN1 and HGF expression in NIP may be useful in predicting malignant transformation.
Carrier Proteins ; genetics ; metabolism ; Hepatocyte Growth Factor ; genetics ; metabolism ; Humans ; Microfilament Proteins ; genetics ; metabolism ; Nasal Mucosa ; metabolism ; pathology ; Nose Neoplasms ; genetics ; metabolism ; pathology ; Papilloma, Inverted ; genetics ; metabolism ; pathology ; Turbinates ; metabolism ; pathology

OBJECTIVE: To determine the expression of vascular endothelial growth factor (VEGF) and their receptor in nasal inverted papillomas (NIP) and to clarify the function of VEGF in the occurrence of NIPs and the correlation with malignant phenotype. METHOD: VEGF and its receptor (flk-1), expression were examined by immunohistochemistry using LSAB method in sections of NIP from 48 patients and squamous carcinoma from 8 patients. RESULT: All the epithelium together with the adjacent vascular and stroma,expressed increased positive staining of VEGF and flk-1 with the degree of atypical hyperplasia in epithelium. The VEGF/flk-1 expression in epithelium was significantly stronger in severe atypical hyperplasia than that in mild atypical hyperplasia, and same in mild atypical hyperplasia than in NIPs (P<0.01). CONCLUSION VEGF/flk-1 participate in the growth of NIPs. The enhanced VEGF/flk-1 in the epithelium may be identified as one of the parameters in judging malignant transformation of NIPs.
Aged ; Carcinoma, Squamous Cell ; genetics ; metabolism ; pathology ; Female ; Humans ; Male ; Middle Aged ; Nose Neoplasms ; genetics ; metabolism ; pathology ; Papilloma, Inverted ; genetics ; metabolism ; pathology ; Prognosis ; Vascular Endothelial Growth Factor A ; genetics ; metabolism ; Vascular Endothelial Growth Factor Receptor-2 ; genetics ; metabolism

We reported a case of an African American woman who went to the hospital with palpable right breast lump with bloody nipple discharge at University of Texas Medical Branch at Galveston. The modalities of breast imagings included mammography and ultrasonography. The method used for viral identification was Linear Array HPV genotyping test. Intraductal papilloma revealed as high density tubular or rounded lobular masses with partially circumscribed, obscured margins and clustered punctate microcalcifications on mammograms. Ultrasound showed as intraductal masses with dilated ducts. The core biopsy demonstrated duct filled with papillary lesion and post excision revealed intraductal papilloma. HPV DNA types 16, 33, 58 and 71 were detected after use of Linear Array HPV genotyping test.
Breast Neoplasms ; diagnostic imaging ; pathology ; virology ; Female ; Genotype ; Humans ; Mammography ; Middle Aged ; Papilloma, Intraductal ; diagnostic imaging ; pathology ; virology ; Papillomaviridae ; classification ; genetics ; isolation & purification

OBJECTIVETo detected HPV human papillomavirus DNA and HPV types in NIP nasal inverted papilloma, to inquire into the infection of HPV in the pathogenesis of NIP, and the relationship of HPV with the prognosis of NIP.

METHODSTwenty-eight cases of NIP were divided into 3 groups: no recurrence group (group 1), recurrence group (group 2), squamous cell carcinoma (SCC) arising in NIP group (malignancy group, group 3). Ten cases of benign nasal polyps were used as control group. HPV-DNA types of 6, 11, 16, 18 and general type were detected by polymerase chain reaction (PCR).

RESULTSTotal positive rate of HPV in NIP was 75% (21/28). The positive rate of group 1 was 42% (5/12), all with single and low risk HPV type infection (4 with HPV6 and 1 with HPV11). Thirteen cases of recurrence and 3 cases of malignancy were discovered to have HPV-DNA, in group 2, the majority were HPV6 and HPV11, 4 cases with double infection;in group 3, the majority were HPV16 and HPV18, and 2 cases with double infection.

CONCLUSIONSThe occurrence of NIP was related with HPV infection. To detected HPV and its subtypes can show the cases easily to have recurrence or malignant change. For the cases with HPV positive, double infection and infected with high risk types should be closely followed-up.

Case-Control Studies ; Humans ; Nose Neoplasms ; diagnosis ; virology ; Papilloma, Inverted ; diagnosis ; virology ; Papillomaviridae ; classification ; genetics ; Papillomavirus Infections ; diagnosis ; virology ; Paranasal Sinus Neoplasms ; diagnosis ; virology ; Prognosis

Humans ; Lung Neoplasms/pathology* ; Adenocarcinoma/pathology* ; Papilloma/genetics* ; Receptor, Fibroblast Growth Factor, Type 1/metabolism* ; Gene Amplification ; Carrier Proteins ; Cytoskeletal Proteins

OBJECTIVEE2F-1 and Rb are involved in cell cycle regulation. This study was to illustrate the mechanism of transformation from benign papillomatosis to ductal carcinoma in situ (DCIS) of the breast in relation to E2F-1 and Rb expression.

METHODSIn situ hybridization (ISH) was used to determinate the expression of E2F-1 and Rb mRNA of mild papillomatosis (MP, n = 40), severe papillomatosis (SP, n = 40) and DCIS (n = 40). Immunohistochemistry (IHC) was used to examine the expression of E2F-1 and Rb protein.

RESULTSThe positive rate of E2F-1 mRNA expression in MP, SP and DCIS was 17.5%, 45.0% and 80.0%, and that of E2F-1 protein expression was 20.0%, 47.5% and 77.5%, respectively. There were significant differences among the three groups (P < 0.01), and between any two groups (P < 0.01). The positive rate of Rb mRNA expression in MP, SP and DCIS was 90.0%, 50.5% and 20.0%, and that of Rb protein expression was 85.0%, 52.5% and 22.5%, respectively, with statistically significant difference similar with that of E2F-1. With the progression of papillomatosis to DCIS, the expression of E2F-1 mRNA and protein increased, while that of Rb decreased. The protein expression by IHC was positively correlated with the mRNA expression by ISH. However, that of E2F-1 was negatively correlated with Rb.

CONCLUSIONE2F-1 and Rb might provide a valuable basis for screening high risk papillomatosis and new target of gene therapy for pre-cancerous lesions of the breast.

Breast Neoplasms ; genetics ; metabolism ; Carcinoma, Intraductal, Noninfiltrating ; genetics ; metabolism ; Cell Cycle Proteins ; biosynthesis ; genetics ; DNA-Binding Proteins ; biosynthesis ; genetics ; E2F Transcription Factors ; E2F1 Transcription Factor ; Female ; Gene Expression Regulation, Neoplastic ; Genes, Retinoblastoma ; Humans ; Immunohistochemistry ; In Situ Hybridization ; Papilloma ; genetics ; metabolism ; Precancerous Conditions ; genetics ; metabolism ; RNA, Messenger ; biosynthesis ; genetics ; Retinoblastoma Protein ; biosynthesis ; genetics ; Transcription Factors ; biosynthesis ; genetics