Abstract:
:We have previously described the generation of a monoclonal antibody recognizing a novel cholangiocyte marker, designated BD.1, that is expressed by fetal and adult rat cholangiocytes but not hepatocytes or the hepatic progenitor cells known as oval cells. In the present report, we have undertaken a comprehensive examination of BD.1 expressed by long-term cultures of bile duct epithelial cells (BDEC) and prostate epithelial cells (PEC). We show that with continued passage, the levels of BD.1 expressed by BDEC and PEC drop significantly, a decrease that is temporally associated with transition from a diploid to an aneuploid karyotype. Cell cycle analysis revealed cell cycle dependent expression of BD.1 characterized by decreased BD.1 levels within the first 10 h after release from serum starvation followed by reacquisition as cells entered S phase. MAb BD.1 recognized a 170 kDa protein in Western blots and showed strong reactivity with a 170 kDa band in blots prepared from phosphoproteins isolated by metal affinity chromatography. Analysis by mass spectrometry of tryptic peptides generated from BD.1 purified by continuous elution electrophoresis identified the plus end microtubule-binding protein, CLIP170, in the fraction reactive with MAb BD.1. Double immunofluorescence with MAb BD.1 and a MAb specific for CLIP170 showed that both were reactive with intrahepatic bile ducts. However, overexpression or siRNA knockdown of CLIP170 in 293T cells did not significantly alter BD.1 levels, indicating that CLIP170 and BD.1 were distinct, co-migrating proteins. Immunoprecipitation analysis with MAb BD.1 and anti-CLIP170 antibodies showed that under microtubule depolymerizing conditions the two proteins could be co-precipitated with both antibodies, leading us to conclude they were capable of forming stable complexes. Two different protocols were devised to enrich for the CLIP170 binding protein recognized by MAb BD.1. Analysis of tryptic peptides by LC-ESI-MS/MS identified BD.1 as eIF3a, the largest subunit of the elongation initiation factor 3 (eIF3) complex. This identity was confirmed by the simultaneous knockdown of both BD.1 and eIF3a by eIF3a-specific siRNAs and by the strong reactivity of MAb BD.1 with the 170 kDa protein immunoprecipitated with the anti-eIF3a antibody, 5H10. Based on these findings, we concluded that the BD.1 antigen was identical to eIF3a, a multifunctional subunit of the eIf3 complex shown here to associate with microtubules through its interactions with CLIP170.
journal_name
Exp Mol Patholjournal_title
Experimental and molecular pathologyauthors
Mills DR,Rozich RA,Flanagan DL,Brilliant KE,Yang D,Hixson DCdoi
10.1016/j.yexmp.2012.04.023subject
Has Abstractpub_date
2012-10-01 00:00:00pages
250-60issue
2eissn
0014-4800issn
1096-0945pii
S0014-4800(12)00081-0journal_volume
93pub_type
杂志文章abstract::To understand the contribution of IL-6/IL-6R to subchondral bone and bone marrow abnormality in RA patients and the effects of tocilizumab on those abnormalities, we evaluated early change in a collagen-induced arthritis (CIA) monkey model with or without a single administration of tocilizumab. Six CIA cynomolgus monk...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2008.03.003
更新日期:2008-06-01 00:00:00
abstract::The development of cyclophosphamide-induced pulmonary lesions over a 1-year period was studied in mice. Male BALB/c mice received a single intraperitoneal injection of 100 mg/kg of cyclophosphamide. Within 3 weeks there were scattered foci of intraalveolar foamy macrophages. With time, these foci increased in size and...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/0014-4800(85)90031-0
更新日期:1985-04-01 00:00:00
abstract::Parkinson's disease (PD) is a chronic neurodegenerative disease characterized by loss of dopaminergic neurons in the substantia nigra. Recently, microRNAs (miRNAs) were emerging as important mediators in dopaminergic neuron biology. This study determined miR-410 expression in the 6-hydroxydopamine (6-OHDA)-induced in ...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2019.05.002
更新日期:2019-08-01 00:00:00
abstract::Certain biochemical parameters of acute liver injury induced by carbon tetrachloride were investigated in rats treated with prostacyclin (PGI2) and two of its derivatives. Serum glutamate oxalacetate transaminase elevation and both triglyceride accumulation and reduction of glycogen content in liver were significantly...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/0014-4800(85)90024-3
更新日期:1985-04-01 00:00:00
abstract::Severe sepsis remains an important cause of death, particularly among trauma and burn patients. The severity of the systemic inflammatory response after trauma or burns and susceptibility to sepsis vary among individuals. One possible mechanism is through differential effects on glucocorticoid receptor (GR) expression...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2008.04.003
更新日期:2008-06-01 00:00:00
abstract::This study aimed to identify the expression of semaphorin 3C (SEMA3C) in the normal-metastatic spectrum of breast and oral cancers, and correlate expression with microvessel density (MVD, CD31), a surrogate marker of angiogenesis. Histological analysis revealed that SEMA3C expression was reduced in the development of ...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2015.03.041
更新日期:2015-08-01 00:00:00
abstract::The testicular effects of daily oral dosing with two glycol ethers--either ethylene glycol monomethyl ether (EGM) or monoethyl ether (EGE) were studied in the prepubertal rat by histological examination of the testes. Over the 11-day dosing period studied, EGM was found to produce testicular damage at dose levels of a...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/0014-4800(84)90074-1
更新日期:1984-04-01 00:00:00
abstract::Macrophages play an essential role in pulmonary host defense. They are, however, a heterogeneous cell population located in different lung compartments. This study was designed to elucidate differences between two macrophage populations obtained from the human lung, i.e., alveolar macrophages (AM) and interstitial mac...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1006/exmp.2000.2344
更新日期:2001-04-01 00:00:00
abstract:BACKGROUND:DNA methylation is the most important epigenetic change involved in the control of gene expression in human cells. Methylation of the p16(INK4a) gene occurs early in the development of cervical cancer. Low-grade squamous intraepithelial lesions (LSILs) are prevalent, and their behavior is variable. OBJECTIV...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2015.01.007
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Existing clinical data have shown that high-grade prostatic intraepithelial neoplasia (HGPIN) is the most likely precursor to prostate cancer (CaP). Criteria to distinguish HGPIN that progress to CaP from those that do not remain poorly defined. Our objective was to evaluate microvessel density as a molecula...
journal_title:Experimental and molecular pathology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.yexmp.2004.04.005
更新日期:2004-10-01 00:00:00
abstract::Quartz dust cytotoxicity was studied in starch-stimulated and nonstimulated mouse peritoneal macrophage cultures in vitro. Morphological changes, release of lactate dehydrogenase (LDH) into the culture medium, and lactate production were used as parameters of cell damage. Phagocytosis of quartz dust by macrophages inc...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/0014-4800(83)90103-x
更新日期:1983-02-01 00:00:00
abstract::Knowledge of the factors regulating the rate of mRNA degradation, including postmortem delay, is important in determining the reliability of gene expression patterns in dermal tissue. Since RNA stability can be tissue dependent, this study evaluates the effect of postmortem interval on the integrity of total RNA or th...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2006.11.001
更新日期:2007-08-01 00:00:00
abstract::The dialysate fluid of uremic patients exhibits, in vitro, an inhibitory effect on cell growth, owing to urea, guanidino compounds, and substances named middle molecules. The polyamines are compounds which exhibit high levels in biological fluids during either normal development or disease such as psoriasis, uremia, a...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1006/exmp.1997.2215
更新日期:1997-01-01 00:00:00
abstract:PURPOSE:Tumor surgery is aimed at complete resection of the lesion while ensuring a sufficient tumor-specific safety distance. Nevertheless, in many cases the most peripheral part - the invasion front - remains in situ. Tumor cells at the tumor margin have been reported to lose their epithelial properties and acquire f...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2017.02.013
更新日期:2017-04-01 00:00:00
abstract::Attempts to establish a tissue bank from autopsy samples have led to uncovering of the secrets of many diseases. Here, we examined the length of time that the RNA from postmortem tissues is available for microarray analysis and reported the gene expression profile for up- and down-regulated genes during the postmortem...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2016.05.007
更新日期:2016-06-01 00:00:00
abstract::Whatman FTA® cards provide the most reliable method for DNA storage and extraction, however, the literature lacks reports on the epigenetic analysis of FTA card-derived tumor DNA. Therefore, this study aimed at demonstrating that punches from colonic adenoma samples preserved on FTA filter cards are suitable for methy...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2020.104397
更新日期:2020-06-01 00:00:00
abstract::It is known that spermidine and other naturally occurring polyamines accumulate in rat lung slices by an energy-dependent uptake process and that alveolar macrophages (AM) have a greater rate of uptake than has the total lung cell population. In the present study rat AMs were incubated with spermidine, which resulted ...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1006/exmp.1994.1005
更新日期:1994-02-01 00:00:00
abstract::Thirty-nine patients with fibromyalgia syndrome (FMS) according to American College of Rheumatology criteria were studied for cell-mediated sensitivity to environmental chemicals. Lymphocytes were tested by standard [(3)H]thymidine incorporation in vitro for T cell memory to 11 chemical substances. Concanavalin A (Con...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1006/exmp.2000.2322
更新日期:2000-10-01 00:00:00
abstract::It is well-known that leukemic cells of overt leukemia (OL) that have transformed from myelodysplastic syndromes (MDS) are more resistant to chemotherapy as compared with de novo AML cells. Thus, to examine the expression levels of drug-resistant genes and their alterations with the development of OL in MDS, the expre...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2006.01.004
更新日期:2006-12-01 00:00:00
abstract::To investigate whether aberrant hypermethylation in plasma DNA could be used as diagnosis makers for hepatocellular carcinoma (HCC), we performed methylation-specific PCR (MSP) to check the methylation status of five tumor associated genes in 36 cases of tissue and 42 cases of plasma samples from HCC and liver cirrhos...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2008.07.001
更新日期:2008-10-01 00:00:00
abstract::In the present investigation, we observed that lead in vitro activates calmodulin at lower concentrations, and the maximum activation was observed at 30 microM concentration. In vivo lead exposure (50 mg/kg body weight, intragastrically) for a period of 8 weeks also stimulated the activity of calmodulin by 45%. The ad...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1006/exmp.1994.1026
更新日期:1994-08-01 00:00:00
abstract::Endothelial cell activation and proliferation are the essential steps in flow-induced arterial remodeling. We investigated endothelial cell turnover in the early stages of high-flow in the rabbit common carotid arteries using an arteriovenous fistula (AVF) model by kinetic investigation of cell proliferation and cell ...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/s0014-4800(03)00032-7
更新日期:2003-08-01 00:00:00
abstract::Currently there is critical need for the identification of reliable biomarkers to help guide clinical management of multiple sclerosis (MS) patients. We investigated the combined roles of Response Gene to Complement 32 (RGC-32), FasL, CDC2, AKT, and IL-21 as possible biomarkers of relapse and response to glatiramer ac...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2015.09.007
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:Annexins are a family of intracellular proteins that bind membrane phospholipids in a Ca(2+) concentration-dependent manner. Several annexins play important roles during tumor progression. However, little is known about the clinical implications and biological functions of Annexin A3 in breast cancer. METHOD...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2013.04.002
更新日期:2013-08-01 00:00:00
abstract::In our previous study, we demonstrated that a peptide derived from the novel centrosome residing protein Cep55/c10orf3 can be targeted by the cytotoxic T lymphocytes (CTLs) in peripheral blood mononuclear cells (PBMCs) of breast carcinoma patients. In this report, we evaluated the feasibility of cancer immunotherapy u...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2010.10.001
更新日期:2011-02-01 00:00:00
abstract::The present investigation was designed to show the effect of human leukocyte antigen (HLA) class II molecular allelic specificities in the recipient on the induction of humoral antibody rejection, identified by C4d peritubular capillary staining, as well as specific antibody identified by Luminex technology. Major his...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2012.05.005
更新日期:2012-10-01 00:00:00
abstract::Tumor associated macrophages (TAMs) play an important role in the growth, progression, and metastasis of tumors. The distribution of TAMs in Kazakh esophageal squamous cell carcinoma (ESCC) is not determined. We aimed to investigate the role of TAMs in the occurrence and progression of Kazakh ESCC. CD163 was used as t...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2016.12.001
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:The aim of the study is to determine the frequency and functionality of blood conventional dendritic cells (cDCs) in relation to disease activity in systemic lupus erythematosus. METHODS:Blood cDCs were enumerated for 34 SLE patients, defined as "active" (SLEDAI ≥ 4) or "inactive" (SLEDAI < 4), 26 RA subject...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2013.06.003
更新日期:2013-10-01 00:00:00
abstract::Studies of spontaneous mutations in mice have provided valuable disease models and important insights into the mechanisms of human disease. Ruffled (rul) is a new autosomal recessive mutation causing abnormal hair coat in mice. The rul allele arose spontaneously in the RB156Bnr/EiJ inbred mouse strain. In addition to ...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/j.yexmp.2015.01.015
更新日期:2015-04-01 00:00:00
abstract::The autoimmune manifestations of MRL-+/+ (MRL/n) and MRL/Mp-lpr/lpr (MRL/l) murine models of systemic lupus erythematosus (SLE) were successfully reversed following total lymphoid irradiation (TLI) therapy consisting of 8-12 daily fractions of 200 rad. Following radiotherapy the characteristic lymphadenopathy of MRL/l...
journal_title:Experimental and molecular pathology
pub_type: 杂志文章
doi:10.1016/0014-4800(83)90096-5
更新日期:1983-02-01 00:00:00