Research Article

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11/28/2012
Apoptosis; Gene and protein expression; MGC; shRNA; siRNA; VEGF

Vascular endothelial growth factor (VEGF) has been found responsible for the induction of proliferation and differentiation in granulosa cells. We constructed four short hairpin RNA (shRNA) expression plasmids targeting the mouse VEGFA gene, and examined their effect on VEGF expression in mouse granulosa cells (MGC) in vitro. Four different shRNA oligonucleotides targeting the ... more

N. Ally; X.L. Zou; B.C. Jiang; L. Qin; L. Zhai; P. Xiao; H.L. Liu
11/27/2014
Apoptosis; Biological behavior; Bladder cancer; Enhancer of zeste homolog 2; siRNA

We investigated the effect of siRNA targeting enhancer of EZH2 on cell proliferation, invasion, migration, and apoptosis of human bladder cancer T24 cells. An siRNA-expressing plasmid targeting the EZH2 gene was transfected into T24 cells. Quantitative polymerase chain reaction and Western blot analysis were used to detect EZH2 expression at the mRNA and protein levels, ... more

H.F. Wang; H. Yang; L.B. Hu; Y.H. Lei; Y. Qin; J. Li; C.W. Bi; J.S. Wang; Q. Huo
03/10/2003
Apoptosis; Drosophila melanogaster; Eye development; UAS/GAL4 ectopic expression system

The UAS/GAL4 ectopic expression system is widely used in Drosophila melanogaster for the overexpression of transgenes. This system operates under the assumption that the yeast transcription factor, GAL4, is inactive in D. melanogaster. Thus, GAL4 can be expressed under the control of D. melanogaster-specific promoters with little effect upon the organism. We ... more

J.M. Kramer; B.E. Staveley
09/30/2007
Activated caspase-3; Apoptosis; Gastric cancer; Gastric dyspepsia; Helicobacter pylori; TUNEL

Apoptosis has an essential function in maintaining the integrity of the gastrointestinal mucosa. Its deregulation is associated with the occurrence of lesions such as in atrophic gastritis, peptic ulcers, intestinal metaplasia, and stomach tumorigenesis. Thus, the aim of the present study was to investigate the frequency of apoptotic cells (apoptotic index, AI) by using two different ... more

A.C. Targa; A.C.G. César; P.M. Cury; A.E. Silva
05/11/2007
Apoptosis; Brachiaria hybrid; Chromatin fragmentation; Male sterility; Meiosis; Programmed cell death

Morphological changes have been investigated during plant programmed cell death (PCD) in the last few years due to the new interest in a possible apoptotic-like phenomenon existing in plants. Although PCD has been reported in several tissues and specialized cells in plants, there have been few reports of its occurrence during microsporogenesis. The present study reports a typical ... more

V.A. Fuzinatto; M.S. Pagliarini; C.B. Valle
02/10/2009
Apoptosis; DNA damage; genomic instability; Inflammation; Isocyanates; Lung cancer

Lungs comprise the primary organ exposed to environmental toxic chemicals, resulting in diverse respiratory ailments and other disorders, including carcinogenesis. Carcinogenesis is a multi-stage phenomenon, which involves a series of genetic alterations that begin with genomic instability provoked by certain factors such as inflammation and DNA damage and end with the development of cancer. ... more

P.K. Mishra; A. Bhargava; G.V. Raghuram; S. Gupta; S. Tiwari; R. Upadhyaya; S.K. Jain; K.K. Maudar
12/08/2011
Apoptosis; Arg72Pro; Karyorrhexis; Micronuclei; rs56275308; TP53

Polymorphisms in the TP53 gene codon 72 (Arg72Pro) influence apoptosis induction and DNA damage repair. We evaluated how variants of protein p53 (p53Arg and p53Pro) affect cell death and DNA damage repair by analyzing the frequencies of karyorrhexis and micronuclei. There were significant differences in the frequency of karyorrhexis between the three p53 genotypes (Arg/Arg, Arg/ ... more

L. Pereira; M.R.S. Carvalho; C.G. Fonseca; S.S.S. Lima; E.M.M. Cerqueira; W. Jorge; M.C.L. Castro
10/18/2011
Apoptosis; CDV; Fas receptor; RT-PCR; Vero cells

We evaluated the expression of the Fas receptor gene in Vero cells infected with the Lederle vaccine strain of canine distemper virus using RT-PCR. Vero cells were plated, and after being grown for 24 h in MEM with 5% FBS, 80-90% confluent monolayer cultures were infected with the virus. The cells were harvested at 3, 6, 9, and 15 h post-infection. Uninfected Vero cells were used as a ... more

H.L. Del Puerto; A.S. Martins; G.F. Braz; F. Alves; M.B. Heinemann; D.S. Rajão; F.C. Araújo; S.F. Martins; D.R. Nascimento; R.C. Leite; A.C. Vasconcelos
09/09/2011
Angiotensin-II; Anti-aging; Apoptosis; IGF-1; klotho gene; PTH

Inactivation of the klotho gene in mice causes serious systemic disorders, resembling human aging. However, at the molecular level, its action mechanisms are not well understood. The stimulatory or inhibitory effects of cis- and trans-regulatory factors on the klotho gene expression are also still unclear. We studied the effects of intra- and extracellular factors on ... more

K. Turan; P. Ata
08/05/2011
Apoptosis; HSIL; LSIL; Micronucleus

We evaluated micronucleus and apoptosis occurrence among women with normal smears and women with different kinds of cervical abnormalities, i.e., inflammatory processes and low- and high-grade squamous intraepithelial lesions (N = 12, N = 10 and N = 27, respectively). The sample included 59 women who were seen at a public medical service for cervical cancer prevention in Feira de Santana, ... more

G.M.A. Aires; J.R.C. Meireles; P.C. Oliveira; J.L. Oliveira; E.L. Araújo; B.C. Pires; E.S.A. Cruz; N.F. Jesus; C.A.B. Pereira; E.M.M. Cerqueira

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