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1.
J Cardiothorac Surg ; 13(1): 99, 2018 Oct 01.
Article in English | MEDLINE | ID: mdl-30285886

ABSTRACT

BACKGROUND: Primary pulmonary meningioma (PPM) is an extremely rare benign tumor. Previous reports indicated that CT features of PPM are single, solid, well-demarcated, homogeneous mass. In this study, we report a case of PPM with atypical CT features. CASE PRESENTATION: A 65-year-old female presents to clinic with 1-week acute upper respiratory tract infection. Her chest CT scan revealed a 25-29 mm, round-like, heterogeneous lobulated solitary pulmonary nodule in the right lower lobe. Based on the microscopic features and a wide range of immunohistochemical examinations including vimentine, progesterone receptor (PR), CD34 and S100, the mass was diagnosed as PPM after surgery. CONCLUSION: PPM is a rare disease, CT features of PPM could be heterogeneous and lobulated. Expression of vimentine, PR, CD34 and S100 helps to diagnosis of PPM.


Subject(s)
Lung Neoplasms/diagnostic imaging , Lung Neoplasms/secondary , Meningioma/diagnostic imaging , Aged , Diagnosis, Differential , Female , Humans , Lung Neoplasms/pathology , Lung Neoplasms/surgery , Meningioma/surgery , Solitary Pulmonary Nodule/diagnostic imaging , Solitary Pulmonary Nodule/surgery , Tomography, X-Ray Computed
2.
Oncol Lett ; 8(6): 2407-2416, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25364403

ABSTRACT

Sulforaphane (SFN), which is highly enriched in cruciferous vegetables, has been investigated for its cancer chemopreventive properties and ability to induce autophagy. Uridine 5'-diphospho (UDP)-glucuronosyltransferase (UGT)1A induction is one of the mechanisms that is responsible for the cancer chemopreventive activity of SFN. The current study demonstrates that rapamycin may enhance the chemopreventive effects of SFN on Caco-2 cells; this may be partially attributed to nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2)- and human pregnane X receptor (hPXR)-mediated UGT1A1, UGT1A8 and UGT1A10 induction. These results indicate that targeting autophagy modulation may be a promising strategy for increasing the chemopreventive effects of SFN in cases of colon cancer.

3.
PLoS One ; 8(2): e57045, 2013.
Article in English | MEDLINE | ID: mdl-23468910

ABSTRACT

BACKGROUND: Polymorphism of genes encoding drug-metabolizing enzymes is known to play an important role in increased susceptibility of colorectal cancer. UGT1A gene locus has been suggested to define tissue-specific glucuronidation activity. Reduced capacity of glucuronidation is correlated with the development of colorectal cancer. Therefore, we sought to explore polymorphism of UGTlA gene in human colorectal cancer. METHODS: Cancerous and healthy tissues were obtained from selectedpatients. Blood samples were collected and UGTlA mRNA transcriptions were analyzed. Genomic DNA was prepared and UGTlA8 exon-1 sequences were amplified, visualized and purified. The extracted DNA was subcloned and sequenced. Two-tailed Fisher's exact test, Odds ratios (ORs), confidence interval (CIs) and Logistics Regression Analysis were used for statistical analysis. RESULTS: UGTlA mRNA expression was reduced in cancerous tissues compared with healthy tissues from the same patient . The UGTlA mRNA expression of healthy tissue in study patients was lower than control . The mRNA expression of cancerous tissue was down-regulated in UGTlAl, 1A3, 1A4, lA6, 1A9 and up-regulated in UGTlA8 and UGTlAl0 UGT1A5 and UGT1A7 were not expressed in colonic tissue of either group. The allele frequency of WT UGTlA8*1 was higher (p = 0.000), frequency of UGTlA8*3 was lowered in control group (p = 0.000). The expression of homozygous UGTlA8*1 was higher in control group (p = 0.000). Higher frequency of both heterozygous UGTlA8*1/*3 and UGTlA8*2/*3 were found in study group (p = 0.000; p = 0.000). The occurrence of colorectal cancer was mainly related to the presence of polymorphic UGTlA8*3 alleles (p = 0.000). CONCLUSION: Regulation of human UGT1A genes is tissue-specific. Individual variation in polymorphic expressions of UGTlA gene locus was noted in all types of colonic tissue tested, whereas hepatic tissue expression was uniform. The high incidence of UGTlA8 polymorphism exists in colorectal cancer patients. UGTlA8*1 allele is a protective factor and UGTlA8*3 allele is a risk factor.


Subject(s)
Colorectal Neoplasms/genetics , Gene Expression Regulation, Neoplastic , Glucuronosyltransferase/genetics , RNA Isoforms , Aged , Alleles , Base Sequence , Exons , Female , Gene Frequency , Genotype , Humans , Male , Middle Aged , Organ Specificity/genetics , RNA, Messenger/genetics
4.
Eur J Med Chem ; 63: 256-68, 2013 May.
Article in English | MEDLINE | ID: mdl-23501111

ABSTRACT

A series of novel 2-ferrocenyl-7-hydroxy-5-phenethyl-5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a][1,4]diazepin-4-one derivatives with optical activity (2) was synthesized in the microwave-assisted condition and characterized by means of IR, (1)H NMR and mass spectroscopy, and furthermore confirmed by X-ray analysis of a representative compound (R)-2a. Preliminary biological evaluation showed that some compounds could suppress the growth of A549, H322 and H1299 lung cancer cells. Among the tested compounds, 2b-d were more effective and might perform their action through cell cycle arrest for A549 cell. Whereas these compounds inhibited growth of H1299 and H322 cells by inducing apoptosis. The anti-tumor activities of these compounds were related to the nature of substituents in benzene moiety. In addition, the results indicated also that compounds 2b-d possessed notable cytotoxicity and selectivity for A549 vs H1299 and H322 lung cancer cells.


Subject(s)
Apoptosis/drug effects , Azirines/chemical synthesis , Azirines/pharmacology , Cell Cycle Checkpoints/drug effects , Cell Proliferation/drug effects , Dihydropyridines/chemical synthesis , Dihydropyridines/pharmacology , Pyrazoles/chemistry , Azepines/chemical synthesis , Azepines/chemistry , Azepines/pharmacology , Azirines/chemistry , Cell Line, Tumor , Crystallography, X-Ray , Dihydropyridines/chemistry , Dose-Response Relationship, Drug , Drug Screening Assays, Antitumor , Electrochemical Techniques , Ferrous Compounds/chemical synthesis , Ferrous Compounds/chemistry , Ferrous Compounds/pharmacology , Flow Cytometry , Humans , Hydrogen Bonding , Lung Neoplasms/pathology , Microscopy, Fluorescence , Models, Chemical , Molecular Structure , Stereoisomerism
5.
Bioorg Med Chem Lett ; 22(22): 6882-7, 2012 Nov 15.
Article in English | MEDLINE | ID: mdl-23044370

ABSTRACT

A series of novel pyrazole peptidomimetics was synthesized from 3-aryl-1-arylmethyl-1H-pyrazole-5-carboxylic acid and amino acid ester. Structures of the compounds were characterized by means of IR, (1)H NMR and mass spectroscopy. Compounds 5e and 5k suppress effectively the growth of A549 lung cancer cells. Preliminary research on the mechanism of action showed that the inhibition might perform through combination of apoptosis, autophagy and cell cycle arrest.


Subject(s)
Antineoplastic Agents/chemical synthesis , Pyrazoles/chemistry , Pyrazoles/chemical synthesis , Serine/analogs & derivatives , Antineoplastic Agents/chemistry , Antineoplastic Agents/toxicity , Apoptosis/drug effects , Autophagy/drug effects , Carboxylic Acids/chemistry , Cell Line, Tumor , G1 Phase Cell Cycle Checkpoints/drug effects , Humans , Peptidomimetics , Pyrazoles/toxicity , Serine/chemical synthesis , Serine/chemistry , Serine/toxicity , Structure-Activity Relationship
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