• 대한본초학회지
• /
• 제22권2호
• /
• pp.163-168
• /
• 2007

Objectives : This study was designed to investigate effects of Sayeoksanhap-Pyeongweisan-Gambang (SPG) on gene expression in rats damaged by CCl4 Methods : We investigated the effects of SPG on gene expression in terms of microarray methods in rat liver which were obtained from rats damaged by CCl4. Results : Decreased gene expressions, which were induced by single injection of CCl4, were restored to those in normal rats by administration of SPG or herbal acupuncture. In acupuncture group, gene expressions were restored by 80% of those in control group. In oral administration group and combination group, gene expressions were restored above 90% of those in cuntrol group. Conclusion : These results suggest that oral administraion of SPG was useful to protect liver against CCl4 by its restoration of gene expressions in liver resected from rat damaged by CCl4.

• Tissue Engineering and Regenerative Medicine
• /
• 제15권6호
• /
• pp.771-779
• /
• 2018

BACKGROUND: Mesenchymal stromal cells (MSCs) are multipotent stem cells that can differentiate into several cell types. In addition, many studies have shown that MSCs modulate the immune response. However, little information is currently available regarding the maintenance of immunomodulatory characteristics of MSCs through passages. Therefore, we investigated and compared cytokine and gene expression levels from adipose (AD) and bone marrow (BM)-derived MSCs relevant to immune modulation from early to late passages. METHODS: MSC immunophenotype, growth characteristics, cytokine expressions, and gene expressions were analyzed. RESULTS: AD-MSCs and BM-MSCs had similar cell morphologies and surface marker expressions from passage 4 to passage 10. Cytokines secreted by AD-MSCs and BM-MSCs were similar from early to late passages. AD-MSCs and BM-MSCs showed similar immunomodulatory properties in terms of cytokine secretion levels. However, the gene expressions of tumor necrosis factor-stimulated gene (TSG)-6 and human leukocyte antigen (HLA)-G were decreased and gene expressions of galectin-1 and -3 were increased in both AD- and BM-MSCs with repeated passages. CONCLUSION: Our study showed that the immunophenotype and expression of immunomodulation-related cytokines of AD-MSCs and BM-MSCs immunomodulation through the passages were not significantly different, even though the gene expressions of both MSCs were different.

• Molecular & Cellular Toxicology
• /
• 제2권1호
• /
• pp.54-59
• /
• 2006

The toxicity of cadmium on Caenorhabditis elegans was investigated to identify sensitive biomarkers for environmental monitoring and risk assessment. Stress-related gene expression were estimated as toxic endpoints Cadmium exposure led to an increase in the expression of most of the genes tested. The degree of increase was more significant in heat shock protein-16.1, metallothionein-2, cytochrome p450 family protein 35A2, glutathione S-transferase-4, superoxide dismutase-1, catalase-2, C. elegans p53-like protein-1, and apoptosis enhancer-1 than in other genes. The overall results indicate that the stress-related gene expressions of C. elegans have considerable potential as sensitive biomarkers for cadmium toxicity monitoring and risk assessment.

• BMB Reports
• /
• 제39권6호
• /
• pp.759-765
• /
• 2006

In this study, we investigate Nitric oxide synthase (NOS) expressions in adriamycin (ADR)-induced cadiomyopathy in rats. Sixty male Wistar rats were randomly divided into two main groups: control and ADR groups. Myocardial histopathological observation was performed; Expressions of 3 isoforms of NOS genes were examined by RT-PCR analysis; Expressions of 3 isoforms of NOS protein was assessed by Western blot analysis. Myocardium exhibited intensive morphological changes after 8 weeks of ADR treatment. The expression levels of inducible NOS (iNOS) gene and protein were significantly increased in ADR-treated rats after 8 weeks of treatment and then slightly increased at weeks 9 and 10. No significantly difference of neuronal NOS (nNOS) or endothelial NOS (eNOS) gene and protein were observed in the myocardium obtained from the control rats and ADR-injected rats at any time point. iNOS gene expression is selectively induced by ADR in heart. The upregulation of iNOS gene and protein may be somehow correlated with morphological changes seen in heart of rat treated with ADR.

• 대한본초학회지
• /
• 제22권2호
• /
• pp.1-12
• /
• 2007

Objectives : Aconitine is one of the toxic components of aconitum species. This study was carried out to evaluate gene expressions of herbal prescriptions containg aconitum species and oriental medicinal plants of aconitum species. Methods : We have measured gene expressions in the liver of aconitine, Aconitum carmichaeli DEBX., Aconitum ciliare DC. Yong Ho Whan using Sprague-Dawley rat. Gene expression in rat liver has been analyzed using codelink 10k microarray. Results : 1. Genes up-regulated over than 4 fold were 118 and down-regulated less than 4 fold were 91 in aconitine 50 ${\mu}g/kg/day$ over control. 2. Genes up-regulated of over than 4 fold were 124 and down-regulated less than 4 fold were 98 in Aconitum ciliare DC. 4g/kg/day and 169 of over than 4 fold, and 110 of less than 4 fold for Aconitum carmichaeli DEBX. 4g/kg/day, respectively. 3. Regulated genes in treatment group of Aconitum carmichaeli DEBX, Aconitum ciliare DC. and aconitine was only 2 different genes, Sulfotransferase family 4A, member 1 and Lin-7 homolog b (C. elegans). Conclusions : Gene expression profiles in liver were different among aconitine, Aconitum carmichaeli DEBX., Aconitum ciliare DC. and herbal prescription YongHo-whan. Furthermore, we can find many new genes related with effects of aconitum species.

• 한국발생생물학회지:발생과생식
• /
• 제16권4호
• /
• pp.289-294
• /
• 2012

Gene expressions of cytochrome P4501A (CYP1A), aryl hydrocarbon receptor (AhR) and vitellogenin (Vg) by endocrine disruptors, benzo[${\alpha}$]pyrene (B[a]P) and tributyltin (TBT) were examined in cultured eel hepatocytes which were isolated from eels treated previously with B[a]P (10 mg/kg) or estradiol-$17{\beta}$ (20 mg/kg) in vivo, and the relationship between CYP1A, AhR and Vg genes were studied. When the cultured eel hepatocytes were treated with B[a]P ($10^{-6}-10^{-5}M$) the gene expressions of CYP1A and AhR were enhanced in a concentration-dependent manner. However, when treated with TBT ($10^{-9}-10^{-5}M$) the gene expressions of CYP1A and AhR were suppressed at high concentrations ($10^{-6}-10^{-5}M$), while having no effects at low concentrations ($10^{-9}-10^{-7}M$). Gene expression of Vg was also suppressed by TBT in a concentration-dependent manner in cultured eel hepatocytes which was previously treated in vivo with estradiol-$17{\beta}$.

• Toxicological Research
• /
• 제20권2호
• /
• pp.109-116
• /
• 2004

For the safety evaluation of adenovirus-mediated gene transfer, we investigated differential gene expressions after transfecting adenoviral vector containing p16 tumor suppressor gene (Ad5CMV-p16) into human non-small cell lung cancer cells. In the previous study, we showed adenovirus-mediated $p16^{INK4a}$ gene transfer resulted in significant inhibition of cancer cell growth. We investigated gene expression changes after transfecting Ad5CMV-p16, Ad5CMV (null type, a mock vector) into A549 cells by using cDNA chip and oligonucleotide microarray chip (1200 genes) which carries genes related with signal transduction pathways, cell cycle regulations, oncogenes and tumor suppressor genes. We found that $p16^{INK4a}$ gene transfer down regulated 5 genes (cdc2, cyclin D3, cyclin B, cyclin E, cdk2) among 26 genes involved in cell cycle regulations. Compared with serum-free medium treated cells, Ad5CMV-p16 changed 27 gene expressions, two fold or more on oligonucleotide chip. In addition, Ad5CMV-p16 did not seem to increase the tumorigenicity-related gene expression in A549 cells. Further studies will be needed to investigate the effect of Ad5CMV-p16 on normal human cells and tissues for safety evaluation.

• Journal of Ginseng Research
• /
• 제45권3호
• /
• pp.450-455
• /
• 2021

Korean Red Ginseng (KRG) is an herbal oriental medicine known to alleviate cardiovascular dysfunction. To analysis the expression of diabetic cardiac complication-associated genes in db/db mice, we studied the cardiac gene expression following KRG treatment. In result, a total of 585 genes were found to be changed in db/db mice. Among the changed expression, 245 genes were found to 2-fold upregulated, and 340 genes were 2-fold downregulated. In addition, the changed gene expressions were ameliorated by KRG. In conclusion, KRG may be possible to normalize cardiac gene expressions in db/db mice.

• 식물조직배양학회지
• /
• 제22권3호
• /
• pp.169-173
• /
• 1995

근관 표피세포(border cell)는 근관(root cap)의 최외각 세포층에서 분화된 단일세포로서, 물리적인 힘을 가하면 예를 들어 근관의 근관 표피세포를 물로 씻어내면, 20∼25시간 이후에는 새로운 층의 근관 표피세포가 근관에 형성된다. 이 새로운 층의 완두 근관 표피세포가 형성되는 동안 근관 표피세포가 제거된 근관에서는 새로운 유전자 발현이 일어나고 있음이 mRNA differential display로 확인되었다. 즉, 이들 근관에서 새롭게 발현되는 유전자들의 일부는 근관 표피 세포의 분화에 관련되어 있다고 볼 수 있다. 또한, 단일 세포로 분화된 근관 표피세포에서는 독특한 유전자 발현이 일어나고 있음이 mRNA differential display로 확인되었다. 이 결과로 알 수 있는 것은 근관 표피세포는 다른 조직(잎, 줄기, 뿌리와 근관 표피세포가 제거된 근관)과는 다른 독특한 기능을 가졌다는 것이다.

• 한국발생생물학회지:발생과생식
• /
• 제26권1호
• /
• pp.13-21
• /
• 2022

Neurokinin B (NKB) is a neuropeptide involved in the regulation of reproductive endocrine system of vertebrate animals, including fish. However, the pathway of NKB action in fish has not been clearly elucidated. In order to clarify the effect of NKB and NKF (neurokinin F) on gonadotropic hormone (GTH) gene expression in the pituitary, we studied the changes of LHβ and FSHβ gene expressions by using two different pituitary culture methods (whole pituitary culture or dispersed pituitary cell culture). Pituitaries were removed from mature female and male Nile tilapia. Changes of LHβ and FSHβ gene expressions were measured and compared after the treatment with NKB or NKF peptides at concentrations 0 to 1,000 nM. Expression of GTH genes in the whole pituitary cultures treated with NKB or NKF peptides did not show significant difference except in female at one concentration when treated with NKF. On the contrary, there were significant changes of GTH gene expressions in the dispersed pituitary cell cultures when treated with NKB and NKF peptides. These results suggest that dispersed pituitary cell culture is more relevant than whole pituitary culture in studying the function of pituitary, and that NKB and NKF could act directly on the pituitary to regulate the expression of GTH genes.