Abstract:
:The polymeric immunoglobulin receptor (PIGR) mediates transport of IgA and IgM antibodies across mucosal and glandular epithelia. Several studies have utilized immunohistochemistry to demonstrate that PIGR expression varies in different types of lung carcinoma, and is down-regulated during tumor progression. We have previously shown in cultured tumor cell-lines that basal transcription of the PIGR gene is regulated by the transcription factors USF1, USF2 and AP2. To examine the mechanism by which PIGR expression is down-regulated in lung carcinoma, RNA was microdissected from formalin-fixed, paraffin-embedded lung carcinomas (14 adenocarcinomas and 8 squamous cell carcinomas). Levels of PIGR, USF1, USF2 and AP2-alpha mRNA were quantified by real-time reverse transcriptase-polymerase chain reaction and normalized to mRNA for the housekeeping gene GAPDH. PIGR mRNA levels were decreased in adenocarcinomas and squamous cell carcinomas relative to adjacent non-tumor tissue, and were inversely correlated with stage of differentiation. USF1 and USF2 mRNA levels were reduced in adenocarcinomas relative to non-tumor tissue, while AP2-alpha levels were elevated. Multivariate regression analysis demonstrated that reduced USF2 mRNA and increased AP2-alpha mRNA levels were predictive of down-regulated PIGR mRNA expression in the majority of adenocarcinomas and in moderately differentiated squamous cell carcinomas.
journal_name
J Biomed Scijournal_title
Journal of biomedical scienceauthors
Khattar NH,Lele SM,Kaetzel CSdoi
10.1007/s11373-004-8185-5keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
65-77issue
1eissn
1021-7770issn
1423-0127journal_volume
12pub_type
杂志文章abstract::We have generated peptide antisera against selected regions in HIV-1 and HIV-2 reverse transcriptase (RT) and integrase (IN) to investigate the specificity of determinants governing the immune response. Peptides representing homologous regions (>50%) in the N- and C-termini and central portions of these proteins were ...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02253469
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:The association of TGF beta1 polymorphisms and atrial fibrillation (AF) in essential hypertensive (EH) subjects remains unknown. Methods EH subjects with AF (EH+AF+) and sinus rhythm (EH+AF-) were enrolled. The polymorphisms of +869 T --> C at codon 10 and + 915 G --> C at codon 25, were genotyped. The clini...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-17-23
更新日期:2010-03-31 00:00:00
abstract:BACKGROUND:Asthma has become an important public health issue and approximately 300 million people have suffered from the disease worldwide. Nowadays, the use of acupuncture in asthma is increasing. This study intended to systematically analyze and compare the gene expression profiles between the asthmatic and acupunct...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-16-46
更新日期:2009-05-06 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-005-9042-x
更新日期:2006-05-01 00:00:00
abstract::After streptococcal pyrogenic exotoxin B (SPE B) induces apoptosis, its fate is unknown. Using confocal time-course microscopy at 37 degrees C, we detected green fluorescence 20 min after adding FITC-SPE B. Orange fluorescence, an indication of co-localization of SPE B with lysosomes which were labeled with a red fluo...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-007-9154-6
更新日期:2007-05-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1159/000067296
更新日期:2002-11-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-020-0621-y
更新日期:2020-01-22 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-006-9073-y
更新日期:2006-07-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-006-9141-3
更新日期:2007-03-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-016-0296-6
更新日期:2016-11-18 00:00:00
abstract:BACKGROUND:Type I Bartter syndrome is a recessive human nephropathy caused by loss-of-function mutations in the SLC12A1 gene coding for the Na+-K+-2Cl- cotransporter NKCC2. We recently established the mutant mouse line Slc12a1I299F exhibiting kidney defects highly similar to the late-onset manifestation of this heredit...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-014-0068-0
更新日期:2014-08-02 00:00:00
abstract::The effects of a single or repeated dermal administration of methyl parathion on motor function, learning and memory were investigated in adult female rats and correlated with blood cholinesterase activity. Exposure to a single dose of 50 mg/kg methyl parathion (75% of the dermal LD(50)) resulted in an 88% inhibition ...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02256609
更新日期:2001-11-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-014-0074-2
更新日期:2014-08-06 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-017-0384-2
更新日期:2017-10-18 00:00:00
abstract:BACKGROUND:Hyaluronic acid (HA) is present in many tissues; its presence in serum may be related to certain inflammatory conditions, tissue damage, sepsis, liver malfunction and some malignancies. In the present work, our goal was to investigate the significance of hyaluronic acid effect on erythrocyte flow properties....
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-17-8
更新日期:2010-02-12 00:00:00
abstract::Glycine N-methyltransferase (GNMT) is a protein with multiple functions. Recently, two Italian siblings who had hepatomegaly and chronic elevation of serum transaminases were diagnosed to have GNMT deficiency caused by inherited compound heterozygosity of the GNMT gene with missence mutations. To evaluate the expressi...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02256001
更新日期:2003-01-01 00:00:00
abstract::Mutations at codon 215 of HIV-1 reverse transcriptase (RT) confer resistance to nucleoside analogs through RT-catalyzed ATP-dependent phosphorolysis. We showed that mutation T215Y is predominant over T215F (respectively 38.8 vs. 7.04% of 7312 sequences from a cohort of patients receiving antiretroviral therapy in Fran...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-005-9011-4
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:Ionizing radiation (IR) activate the early growth response-1 (Egr-1) promoter by production of radical oxygen intermediates (ROIs). Egr-EF, an expression vector pCIneo containing Egr-1 promoter cloned upstream of the cDNA for Flt3 ligand, was used to treat hematopoietic damage. 5-fluorouracil, a commonly use...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-16-85
更新日期:2009-09-21 00:00:00
abstract::The HIV-1 Tat protein is an RNA-binding transcriptional transactivator. Recent findings suggest that Tat associates with a cellular kinase that phosphorylates the carboxyl-terminal domain of the largest subunit of RNA polymerase II. Here we review, in brief, the role of Tat-associated kinase in Tat-activated transcrip...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1007/BF02253352
更新日期:1998-01-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02256588
更新日期:2002-07-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-016-0310-z
更新日期:2017-01-05 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-008-9250-2
更新日期:2008-09-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02253709
更新日期:1996-07-01 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-005-9043-9
更新日期:2006-05-01 00:00:00
abstract::Adenosine was shown to inhibit norepinephrine (NE) release from sympathetic nerve endings. The purpose of this study was to examine whether endogenous adenosine restrains NE and epinephrine release from the adrenal medulla. The effects of an adenosine receptor antagonist, 1,3-dipropyl-8-(p-sulfophenyl) xanthine (DPSPX...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02255947
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Increased levels of blood plasma urea were used as phenotypic parameter for establishing novel mouse models for kidney diseases on the genetic background of C3H inbred mice in the phenotype-driven Munich ENU mouse mutagenesis project. The phenotypically dominant mutant line HST014 was established and further...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-017-0365-5
更新日期:2017-08-17 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-017-0367-3
更新日期:2017-09-04 00:00:00
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journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-17-1
更新日期:2010-01-07 00:00:00
abstract::Maternal exposure to dietary factors during pregnancy can influence embryonic development and may modulate the phenotype of offspring through epigenetic programming. Folate is critical for nucleotide synthesis, and preconceptional intake of dietary folic acid (FA) is credited with reduced incidences of neural tube def...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-014-0077-z
更新日期:2014-08-19 00:00:00
abstract::Reactive oxygen species (ROS) have been long considered simply as harmful by-products of metabolism, which damage cellular proteins, lipids, and nucleic acids. ROS are also known as a weapon of phagocytes, employed against pathogens invading the host. However, during the last decade, an understanding has emerged that ...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-015-0194-3
更新日期:2015-10-15 00:00:00