Gastrin gene expression in human colon cancer cells measured by a simple competitive PCR method.

Abstract:

:Gastrin is mitogenic for several colon cancers and is postulated as an autocrine growth factor for colon cancer cells. In the present study we report the development of a simple competitive polymerase chain reaction (PCR) method for measuring relative abundance of gastrin gene expression in colon cancer cells. Primers flanking exons 2 and 3 of the gastrin gene were utilized for co-amplification of cDNA and genomic DNA. The amplification of genomic DNA was distinguished from that of cDNA by the presence of the 130 bp intron sequence which was resolved by electrophoresis on agarose gels. A standard reaction of competitive PCR, using known concentrations of genomic DNA and cDNA, was first established. The steady state levels of gastrin mRNA were next quantitated in three human colon cancer cell lines (HCT-116, Colo-205 and DLD-1) by competitive PCR. Gastrin mRNA levels in these cell lines ranged from approximately 0.1 to 1.0 fmoles/mg total RNA (approximately 2-25 copies of gastrin mRNA per cell). Thus low to moderate levels of gastrin were expressed by human colon cancer cell lines which may function as autocrine growth factors for colon cancers.

journal_name

Life Sci

journal_title

Life sciences

authors

Xu Z,Dai B,Dhruva B,Singh P

doi

10.1016/0024-3205(94)00550-8

subject

Has Abstract

pub_date

1994-01-01 00:00:00

pages

671-8

issue

10

eissn

0024-3205

issn

1879-0631

pii

0024-3205(94)00550-8

journal_volume

54

pub_type

杂志文章
  • Identification of SLC26A transporters involved in the Cl⁻/HCO₃⁻ exchange in proximal tubular cells from WKY and SHR.

    abstract:AIMS:slc26a proteins are responsible for a large number of functions either in normal physiology or in human disease. We have previously reported that proximal tubular epithelial (PTE) cells immortalized from spontaneously hypertensive rats (SHRs) were endowed with increased Cl(-)/HCO3(-) exchanger activity and slc26a6...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2013.07.026

    authors: Simão S,Gomes P,Pinho MJ,Soares-da-Silva P

    更新日期:2013-10-06 00:00:00

  • Novel fused oxazepino-indoles (FOIs) attenuate liver carcinogenesis via IL-6/JAK2/STAT3 signaling blockade as evidenced through data-based mathematical modeling.

    abstract:AIMS:To potentiate the well-documented tumor protecting ability of paullones, literatures demand for rational modifications in paullone ring structure and exploration of a precise mechanism underlying their antitumor effects. Thus, recently we synthesized novel paullone-like scaffold, 5H-benzo [2, 3][1,4]oxazepino[5,6-...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2018.02.029

    authors: Singh AK,Bhadauria AS,Kumar U,Raj V,Maurya V,Kumar D,Maity B,Prakash A,De A,Samanta A,Saha S

    更新日期:2018-05-15 00:00:00

  • Protein kinase C inhibitor chelerythrine attenuates the morphine-induced excitatory amino acid release and reduction of the antinociceptive effect of morphine in rats injected intrathecally with pertussis toxin.

    abstract::Neuropathic pain syndromes respond poorly to opioid treatment. In our previous studies, we found that intrathecal (i.t.) injection of pertussis toxin (PTX) produces thermal hyperalgesia, which is poorly responsive to morphine and is accompanied by an increase in cerebrospinal fluid (CSF) levels of excitatory amino aci...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2005.08.020

    authors: Wu GJ,Wen ZH,Chang YC,Yang SN,Tao PL,Wong CS

    更新日期:2006-03-13 00:00:00

  • Flow cytometric detection of lymphocyte alterations in Huntington's disease.

    abstract::Several recent reports indicate that patients with Huntington's Disease (HD) may manifest membrane abnormalities in a wide variety of cells including peripheral blood lymphocytes. In this study, flow cytometry is used in conjunction with the fluorescent membrane probe, 8-anilino-1-naphthalene sulfonate (ANS), to exami...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(85)90165-1

    authors: Gollin SM,Leary JF,Shoulson I,Doherty RA

    更新日期:1985-02-18 00:00:00

  • Development of a model for Parkinson's disease in sheep using unilateral intracarotid injection of MPTP via slow continuous infusion.

    abstract::The effects of unilateral intracarotid administration of MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) in sheep were studied with the goal of producing a non-primate, large animal model of Parkinson's Disease. Adult female sheep were given an acute (over 30 min) or chronic (over 1 week) injection of MPTP (0.4-5....

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(94)00406-4

    authors: Baskin DS,Browning JL,Widmayer MA,Zhu ZQ,Grossman RG

    更新日期:1994-01-01 00:00:00

  • Branched-chain amino acids-induced cardiac protection against ischemia/reperfusion injury.

    abstract:AIMS:Amino acids, especially branched chain amino acids (BCAAs), have important regulatory roles in protein synthesis. Recently studies revealed that BCAAs protect against ischemia/reperfusion (I/R) injury. We studied the signaling pathway and mitochondrial function affecting a cardiac preconditioning of BCAAs. MAIN M...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2020.117368

    authors: Satomi S,Morio A,Miyoshi H,Nakamura R,Tsutsumi R,Sakaue H,Yasuda T,Saeki N,Tsutsumi YM

    更新日期:2020-03-15 00:00:00

  • Forkhead box transcription factors in embryonic heart development and congenital heart disease.

    abstract::Embryonic heart development is a very complicated process regulated precisely by a network composed of many genes and signaling pathways in time and space. Forkhead box (Fox, FOX) proteins are a family of transcription factors characterized by the presence of an evolutionary conserved "forkhead"or "winged-helix" DNA-b...

    journal_title:Life sciences

    pub_type: 杂志文章,评审

    doi:10.1016/j.lfs.2015.12.001

    authors: Zhu H

    更新日期:2016-01-01 00:00:00

  • Involvement of asymmetric dimethylarginine (ADMA) in glomerular capillary loss and sclerosis in a rat model of chronic kidney disease (CKD).

    abstract:AIMS:Asymmetric dimethylarginine (ADMA), an endogenous nitric oxide synthase inhibitor, has been reported to be a novel marker for the progression of chronic kidney disease (CKD). We have recently found that accumulation of ADMA could trigger peritubular capillary loss, thus contributing to tubulointerstitial ischemia ...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2009.03.018

    authors: Ueda S,Yamagishi S,Matsumoto Y,Kaida Y,Fujimi-Hayashida A,Koike K,Tanaka H,Fukami K,Okuda S

    更新日期:2009-06-05 00:00:00

  • In vivo binding of [11C]tetrabenazine to vesicular monoamine transporters in mouse brain.

    abstract::The time course of regional mouse brain distribution of radioactivity after i.v. injection of a tracer dose of [11C]tetrabenazine ([11C]TBZ) has been determined. Radiotracer uptake into brain is rapid, with 3.2% injected dose in the brain at 2 min. Egress from the brain is also very rapid, with only 0.21% of the injec...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(92)90228-h

    authors: DaSilva JN,Kilbourn MR

    更新日期:1992-01-01 00:00:00

  • Hexamethonium increases the excitability of sympathetic neurons by the blockade of the Ca2+-activated K+ channels.

    abstract::Effects of hexamethonium (C6) on the excitability of sympathetic ganglion cells were examined by means of intracellular recording. When DC currents were injected, high concentrations of C6 significantly augmented the repetitive firing of the cells without any change in threshold voltage for initiation of the spike. Th...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(85)90324-8

    authors: Kawai T,Oka J,Watanabe M

    更新日期:1985-06-17 00:00:00

  • Modulation of macrophage superoxide release by purine metabolism.

    abstract::Metabolic flux through the purine salvage pathway appears to modulate superoxide secretion by elicited macrophages. Exogenous adenosine, the first substrate of this pathway, stimulates superoxide secretion, and Allopurinol, a specific inhibitor of xanthine oxidase, inhibits superoxide secretion. The effects of these a...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(83)90811-1

    authors: Tritsch GL,Niswander PW

    更新日期:1983-03-21 00:00:00

  • Antidepressants and seizure-interactions at the GABA-receptor chloride-ionophore complex.

    abstract::Convulsive seizures are a potential side effect of antidepressant drug treatment and can be produced by all classes of antidepressants. It is also known that some convulsant and anticonvulsant drug actions are mediated by the GABA-receptor chloride-ionophore complex. Drugs acting at this complex appear to induce convu...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(88)90107-5

    authors: Malatynska E,Knapp RJ,Ikeda M,Yamamura HI

    更新日期:1988-01-01 00:00:00

  • Sumoylation enhances the activity of the TGF-β/SMAD and HIF-1 signaling pathways in keloids.

    abstract::Excessive fibrosis and extracellular matrix deposition resulting from upregulation of target genes expression mediated by transforming growth factor-beta (TGF-β)/SMAD and hypoxia inducible factor-1 (HIF-1) signaling pathways are the main mechanisms that drive keloid formation. Sumoylation is a protein posttranslationa...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2020.117859

    authors: Lin X,Wang Y,Jiang Y,Xu M,Pang Q,Sun J,Yu Y,Shen Z,Lei R,Xu J

    更新日期:2020-08-15 00:00:00

  • Chromium attenuates hepatic damage in a rat model of chronic cholestasis.

    abstract:AIMS:Oxidative stress is involved in cholestasis-induced hepatic damage. Therefore, antioxidant therapy is a recommended therapeutic strategy. Studies have illustrated that chromium can enhance antioxidative capacity leading to a resolution of oxidative stress. The aim of this study was to assess whether chromium has p...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2009.02.003

    authors: Chen WY,Chen CJ,Liao JW,Mao FC

    更新日期:2009-04-24 00:00:00

  • Metformin attenuates hepatoma cell proliferation by decreasing glycolytic flux through the HIF-1α/PFKFB3/PFK1 pathway.

    abstract:AIMS:Enhanced aerobic glycolysis is an essential hallmark of malignant cancer. Blocking the glycolytic pathway has been suggested as a therapeutic strategy to impair the proliferation of tumor cells. Metformin, a widely used anti-diabetes drug, exhibits anti-tumor properties. However, the underlying molecular mechanism...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2019.116966

    authors: Hu,Zeng Z,Xia Q,Liu Z,Feng X,Chen J,Huang M,Chen L,Fang Z,Liu Q,Zeng H,Zhou X,Liu J

    更新日期:2019-12-15 00:00:00

  • Effects of calcium channel antagonists on the induction of nitric oxide synthase in cultured cells by immunostimulants.

    abstract::We investigated whether calcium channel antagonists would alter the induction of nitric oxide (NO) synthesis by bacterial lipopolysaccharide (LPS) alone or in combination with interferon-gamma (IFN gamma) in cultured J774 macrophages, rat vascular smooth muscle cells, rat renal mesangial cells, and rat cardiac myocyte...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(95)02163-d

    authors: Hattori Y,Kasai K,So S,Hattori S,Banba N,Shimoda S

    更新日期:1995-01-01 00:00:00

  • The binding of [3H]AF-DX 384 is reduced in the caudate-putamen of subjects with schizophrenia.

    abstract::Clinical studies of cholinergic pharmacotherapy, together with the putative role of the muscarinic receptor system in the neurophysiology of human behavior, support a possible muscarinic cholinergic involvement in schizophrenia. The present study has measured the density of [3H]AF-DX 384 labelled receptors (muscarinic...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/s0024-3205(99)00114-9

    authors: Crook JM,Dean B,Pavey G,Copolov D

    更新日期:1999-01-01 00:00:00

  • Relations between contractile responses and beta-adrenoceptors in gastric fundus of diabetic rats.

    abstract::Contractile responses to norepinephrine (NE), and the population of beta-adrenoceptors, were determined in gastric fundus smooth muscle from rats with diabetes induced by streptozotocin (STZ), and age-matched controls. Relaxation and/or contraction of fundus strips of controls and diabetics were induced by 10(-5)M NE....

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(91)90505-6

    authors: Sakai Y,Inazu M,Aihara K,Inoue K,Homma I

    更新日期:1991-01-01 00:00:00

  • High-dose pentazocine antagonizes the antinociception induced by high-dose morphine.

    abstract:AIMS:To investigate the effects of high doses of pentazocine on antinociception induced by a high dose of morphine and the role of the kappa-opioid receptors (KORs) in these effects in mice. MAIN METHODS:Sixty-six C57BL/6J mice were pretreated with a KOR antagonist, nor-binaltorphimine (nor-BNI) (10mg·kg(-1)), or a no...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2015.02.023

    authors: Shu H,Wang Z,Ye F,Li Q,Dou Y,Lin Y,Huang W,Xiao X

    更新日期:2015-06-01 00:00:00

  • Effects of FR145237, an acyl-CoA:cholesterol acyltransferase inhibitor, on diet-induced hypercholesterolemia in diabetic rats.

    abstract::Recent studies have shown that acyl-CoA:cholesterol acyltransferase (ACAT) plays an important role in the initiation of diabetes-associated hypercholesterolemia. To confirm this hypothesis, effects of a potent ACAT inhibitor, FR145237, on diet-induced hypercholesterolemia were examined in streptozotocin (STZ)-induced ...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/s0024-3205(96)00658-3

    authors: Sakuma Y,Hagihara H,Nagayoshi A,Ohne K,Mutoh S,Ito Y,Nakahara K,Notsu Y,Okuhara M

    更新日期:1997-01-01 00:00:00

  • Viscus fat area contributes to the Framingham 10-year general cardiovascular disease risk in patients with type 2 diabetes mellitus.

    abstract:OBJECTIVE:To explore the correlation of the viscus fat area (VFA) with the Framingham 10-year general cardiovascular disease risk in patients with type 2 diabetes mellitus (T2DM). METHODS:A total of 202 patients with T2DM were divided into two groups based on VFA (a VFA ≥ 100 cm2 group and a VFA < 100 cm2 group), or f...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2019.01.036

    authors: Xu L,Song P,Xu J,Zhang H,Yu C,Guan Q,Zhao M,Zhang X

    更新日期:2019-03-01 00:00:00

  • In vivo and in vitro effect of naloxone on prolactin response to TRH in rat.

    abstract::In adult male Wistar rats submitted to a standardized noise stress, intravenous TRH induced a prolactin (PRL) secretory response. Prior IV naloxone administration not only lowered plasma PRL levels in those stressed rats but abolished also the stimulatory action of TRH. This effect was further studied by superfusion e...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(87)90756-9

    authors: Velkeniers B,Buydens P,Baldys A,De Boel S,Finné E,Golstein J,Vanhaelst L

    更新日期:1987-06-22 00:00:00

  • The PI3K-Akt-eNOS pathway is involved in aortic hyporeactivity to Phenylephrine associated with late pregnancy in spontaneously hypertensive rats.

    abstract:AIM:This study aimed to evaluate the effects of Wortmannin, an inhibitor of phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt), on aortic hyporeactivity to Phenylephrine (Phe) and nitric oxide bioavailability associated with pregnancy in hypertensive rats. MAIN METHODS:The intact aortic rings of pregnant and ...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2014.12.014

    authors: Zancheta D,Troiano JA,Potje SR,Cavalari P,Sumida DH,Antoniali C

    更新日期:2015-02-01 00:00:00

  • Magnetically responsive microspheres for the pulsed delivery of insulin.

    abstract::This paper describes a new formulation for triggered delivery of insulin which consisted of magnetic particles dispersed in alginate spheres. When magnetic field was applied to that system, the release rate of insulin was about 50 times higher than in the absence of magnetic field. The influence of oscillating magneti...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(88)90009-4

    authors: Saslawski O,Weingarten C,Benoit JP,Couvreur P

    更新日期:1988-01-01 00:00:00

  • The endothelin A receptor and epidermal growth factor receptor signaling converge on β-catenin to promote ovarian cancer metastasis.

    abstract:AIMS:Endothelin A receptor (ET(A)R) and epidermal growth factor receptor (EGFR) cross-talk enhances the metastatic potential of epithelial ovarian cancer (EOC) cells activating different pathways, including β-catenin signalling. Here, we evaluated β-catenin as one of ET(A)R/EGFR downstream pathway in the invasive behav...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2012.03.023

    authors: Cianfrocca R,Tocci P,Spinella F,Di Castro V,Bagnato A,Rosanò L

    更新日期:2012-10-15 00:00:00

  • The effect of GABA on in vitro binding of two novel non-benzodiazepines, PK 8165 and CGS 8216, to benzodiazepine receptors in the rat brain.

    abstract::The effect of gamma-aminobutyric acid (GABA) on the binding of PK 8165, a quinoline derivative, and CGS 8216, a pyrazoloquinoline, was assessed in two different regions of the rat brain. PK 8165, a compound with reported anxiolytic properties, inhibited [3H]-propyl beta-carboline-3-carboxylate labeled receptors in the...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(82)90403-9

    authors: Morelli M,Gee KW,Yamamura HI

    更新日期:1982-07-05 00:00:00

  • The effects of low doses of morphine on the activity of dopamine-containing cells and on behavior.

    abstract::Intravenous (IV) administration of 10 ug/kg of morphine sulfate increased the firing rate of Type A dopamine neurons but decreased the extracellular activity of Type B dopamine cells in the substantia nigra pars compacta and ventral tegmental area of anesthetized male rats. The morphine-produced increase in Type A cel...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(82)90153-9

    authors: Ostrowski NL,Hatfield CB,Caggiula AR

    更新日期:1982-11-15 00:00:00

  • Involvement of the dopaminergic and serotonergic systems in the antidepressant-like effect caused by 4-phenyl-1-(phenylselanylmethyl)-1,2,3-triazole.

    abstract:AIMS:The study investigated the antidepressant-like effect and acute toxicity of 4-phenyl-1-(phenylselanylmethyl)-1,2,3-triazole (Se-TZ), an organoselenium-containing heterocycle compound in mice. MAIN METHODS:The antidepressant-like effect of Se-TZ (1-50mg/kg) and its mechanism of action, was analyzed in the tail sus...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/j.lfs.2013.07.024

    authors: Donato F,de Gomes MG,Goes AT,Seus N,Alves D,Jesse CR,Savegnago L

    更新日期:2013-09-17 00:00:00

  • Marked increase in gastric histidine decarboxylase activity in patients with hypergastrinemia.

    abstract::Histidine decarboxylase (HDC) activity and histamine content were measured in endoscopic gastric biopsy specimens of 19 control subjects with normogastrinemia and 6 patients with hypergastrinemia. In controls, the HDC activity was 3 fold higher in fundic mucosa (120 +/- 13 fmol/min/mg protein, mean +/- S.E.) than in a...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(91)90424-a

    authors: Miyazaki Y,Imamura I,Shinomura Y,Wada H,Tarui S

    更新日期:1991-01-01 00:00:00

  • Neurotensin enhances plasma adrenocorticotropin concentration by stimulating corticotropin-releasing hormone secretion.

    abstract::The systemic administration of neurotensin (NT) dose-dependently increased plasma adrenocorticotropin (ACTH) concentration in rats, and this effect was annulled by (alpha-helical)-CRH9-41, an antagonist of corticotropin-releasing hormone (CRH). The systemic administration of [D-Trp11]-neurotensin (NT-A), a specific NT...

    journal_title:Life sciences

    pub_type: 杂志文章

    doi:10.1016/0024-3205(92)90250-s

    authors: Nussdorfer GG,Malendowicz LK,Meneghelli V,Mazzocchi G

    更新日期:1992-01-01 00:00:00