• Title/Summary/Keyword: Annealing control primers

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Identification of Differentially Expressed Genes by Proto-oncogene Protein DEK using Annealing Control Primers

  • Kim, Dong-Wook;Lee, Jae-Hwi;Seo, Sang-Beom
    • Biomolecules & Therapeutics
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    • v.16 no.3
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    • pp.184-189
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    • 2008
  • The proto-oncogene protein DEK has been implicated in various human disease including cancer. We have shown that DEK induces caspase-dependent apoptosis in Drosophila by regulating histone acetylation. Reverse transcription-polymerase chain reaction (RT-PCR) method based on annealing control primers was used to screen and identify differentially expressed genes (DEGs) in DEK overexpressed HeLa cells. Among the genes identified, clusterin and fibrillarin have major role in apoptosis pathway regulation. TFIIIC and RPS24 are implicated in HAT mediated transcriptional initiation and cololectal cancer, respectively. To further analyze DEK's role in apoptosis, multiplex PCR was performed. Caspase-3, -7, and -10 and proapoptotic gene bid were newly identified as possible target genes regulated by DEK expression.

Identification of differentially expressed genes in the developmental stages from olive flounder Paralichthys olivaceus using an annealing control primer system

  • Kim, Young-Ok;Park, Eun-Mi;Nam, Bo-Hye;Kong, Hee-Jeong;Kim, Woo-Jin;Noh, Jae-Koo;Lee, Sang-Jun;Kim, Kyung-Kil
    • Animal cells and systems
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    • v.14 no.1
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    • pp.25-30
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    • 2010
  • We employed a new and improved differential display reverse transcription-polymerase chain reaction (DDRT-PCR) method, which involves annealing control primers (ACPs), to identify the genes that are specifically or prominently expressed in olive flounder (Paralichthys olivaceus) juveniles (35 days post-hatch; dph) compared to larval-stage (dph 21) flounder. Using 60 ACPs, we identified eight differentially expressed genes (DEGs) and basic local alignment search tool (BLAST) searches revealed eight known genes. Gene expression levels were confirmed by RT-PCR. Phosphoglucose isomerase (PGI) was highly expressed at 21 dph, while nephrosin, myosin light chain (MLC), myosin heavy chain (MHC), carboxypeptidase A, chymotrypsin B, fish-egg protein, and matrix protein were expressed at 35 dph. PGI, MLC, and MHC expression was further analyzed by RT-PCR. The differentially expressed genes identified in this study may provide insights into the molecular basis of development in olive flounder.

Identification of Differentially Regulated Genes in Bovine Blastocysts using an Annealing Control Primer System

  • Park, Sae-Young;Hwang, Kyu-Chan;Cui, Xiang-Shun;Shin, Mi-Ra;Kim, Eun-Young;Lee, Won-Don;Kim, Nam-Hyung;Park, Sepill;Lim, Jin-Ho
    • Proceedings of the KSAR Conference
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    • 2004.06a
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    • pp.229-229
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    • 2004
  • The identification of embryo-specific genes would provide insights into early embryonic development. However, the current methods employed to identify the genes that are expressed at a specific developmental stage are labor intensive and suffer from high rates of false positives. Here we employed a new and accurate reverse transcription-polymerase chain reaction (RT-PCR) technology that involves annealing control primers (ACPs) to identify the genes that are specifically or prominently expressed in bovine early blastocysts and hatched blastocysts produced in vitro. (omitted)

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Difference of Gene Expression in Venous Malformation (정맥기형 환자에 있어서의 유전자 발현 차이)

  • Kim, Taek Kyun;Oh, Eun Jung;Cho, Byung Chae;Chung, Ho Yun
    • Archives of Plastic Surgery
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    • v.34 no.6
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    • pp.671-678
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    • 2007
  • Purpose: Venous malformation(VM) which often causes pain and discomfort is the most common type of vascular malformations. Although it is presented with disfigured appearance and associated soft tissue or skeletal hypertrophy, the molecular bases of VMs are poorly understood. Differentially expressed genes(DEGs) of VMs were investigated to illuminate the molecular mechanism of the disease entity. Methods: Gene expressions of VM patients' subcutaneous tissue were studied in comparison with normal persons' by $GeneFishing^{TM}$ technique using the annealing control primers (ACPs) to identify DEGs. Candidate genes were sequenced and screened by basic local alignment search tool (BLAST) afterwards. Results: Among seventy DEGs identified, forty DEGs which had shown significantly different expression pattern were sequenced. Twenty eight out of 40 were up-regulated while 12 were down-regulated. BLAST searches revealed that 37 were known genes and 3 were unknown genes. Many genes were involved in the differentiation and remodeling of smooth muscle cells, opposed to the previous hypothesis that a lot of angiogenetic genes would be involved. Furthermore, several transcription factors and related genes, as well as cell signaling and metabolism regulators, were up regulated. Conclusion: It suggests that analysis of DEGs in VMs provide basic knowledge about its pathophysiology. and new therapeutic approaches.

Identification of Differentially Expressed Genes in Improved Rainbow Trout Growth by Treatment with a Fish Myostatin Prodomain Using the Annealing Control Primer System (Annealing control primer system을 이용한 어류 재조합 myostatin prodomain 단백질에 의해 성장이 증가된 무지개송어의 특이적 발현 유전자 탐색)

  • Lee, Sang-Beum;Jin, Hyung-Joo
    • Korean Journal of Ichthyology
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    • v.24 no.2
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    • pp.118-124
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    • 2012
  • The present study was conducted to investigate different gene expression profile between treated poMSTNpro and non-treated in rainbow trout and to identify those genes that are specifically or predominantly expressed in treated poMSTNpro by employing annealing control primer (ACP)-based GeneFishing polymerase chain reaction (PCR). We isolated total RNAs in muscle tissues from the treated poMSTNpro fish by immersion bath technique with fish myostatin prodomain (Paralichthys olivaceus, poMSTNpro) for one month and the other was non-treated poMSTNpro, and synthesized cDNA using annealing control primers (ACP, Seegene, Korea). Using 20 different ACPs for PCR, were cloned sequenced, and analyzed identities of 2 differentially expressed genes (DEGs). According to BLAST analysis, sequences of 2 clones significantly matched database entries and confirmed by semi-quantitative RT-PCR. The functional roles of one up-regulated gene, cytochrome P450 mono-oxygenases 2K1v2 (CYP2K1v2), and one down-regulated gene was Profilin-1 were identified. We identified distinctive gene expression profiles in improved rainbow trout growth by treatment with a fish myostatin prodomain using ACP-based GeneFishing.

Analysis of Genes Expressed in Mouse Ovaries of Early Developmental Stages (초기발달 단계의 생쥐 난소에서 발현하는 유전자에 관한 연구)

  • Jeon Eun-Hyun;Yoon Se-Jin;Cha Kwang-Yul;Kim Nam-Hyung;Lee Kyung-Ah
    • Development and Reproduction
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    • v.7 no.2
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    • pp.127-136
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    • 2003
  • The present study was conducted to investigate gene expression profile of mouse ovaries during the primordial-primary follicle transition. We isolated total RNA from mouse ovaries at day1(contains only primordial follicles) and day5(contains both primordial and primary follicles) and synthesized cDNA using annealing control primers(ACP, Seegene, Inc., Seoul, Korea). Using 80 different ACPs for PCR, we cloned, sequenced, and analyzed identities of 41 differentially expressed genes(DEGs). According to BLAST analysis, sequences of 33 clones significantly matched database entries, 4 clones were novel, and 4 clones were ESTs. We selected 8 DEGs with interesting functions, Anx11 and Pepp2-Pending highly expressed in day1 ovary, while Apg3/Autlp-like, BPOZ, Ches1, Kcmf1, NHE3, Nid2, Ninj1, SENP3, Suil-rsl, and TIAP/m-survivin highly expressed in days ovary, and confirmed their different expression between day1 ovaries and days ovaries using semi-quantitative RT-PCR. There was no false positive result. Using in situ hybridization, we found that almost all of genes studied were expressed in the oocyte from primordial follicle stage but expression decreased from primary follicle stage. Meanwhile their expression was increased in cuboidal granulosa cells. Different expression of BPOZ and TIAP/m-survivin between primordial and primary follicles was confirmed by using laser capture microdissection followed by real-time PCR BPOZ and TIAP/m-survivin expressed 4.5 and 3.4 fold higher in primary than primordial follicles, respectively. List of genes obtained from the present study will provide insights for the study of mechanism regulating primordial-primary follicle transition.

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Identification of Differential Expressed Genes at 2-cell Stage Porcine Embryo using ACP-based DD-RT-PCR

  • Hwang, Kyu-Chan;Cui, Xiang-Shun;Lee, Hwa-Young;Jin, Yong-Xun;Kim, Jin-Hoi;Kim, Nam-Hyung
    • Proceedings of the KSAR Conference
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    • 2004.06a
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    • pp.231-231
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    • 2004
  • Successful embryonic development is dependant on temporal and stage-specific expression of appropriate genes. However, information on specific gene expression during early cleavage before zygotic gene activation (ZGA) is lacking. In the present study, we compared gene expression between porcine parthenotes 2-cell and blastocyst embryos to identify the genes that are specifically or prominently expressed by employing annealing control primers (ACP)-based Gene Fishing RCR. (omitted)

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Identification of Differentially Regulated Genes in the Brain of Limanda yokohamae from Masan Bay, Korea

  • Oh, Jeong-Hwan;Moon, Hyo-Bang;Choe, Eun-Sang
    • Korean Journal of Environmental Biology
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    • v.27 no.1
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    • pp.95-99
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    • 2009
  • Transcriptomic changes in the brain of Limanda yokohamae were investigated to understand the environmental condition of Masan Bay, Korea. Differentially expressed genes (DEGs) in the brain of the flat fish from Masan Bay were identified by comparing those from the reference site Gangneung using annealing control primers-based polymerase chain reaction. The results demonstrated that two different kinds of the cytoplasmic ribosomal proteins, 40 s ribosomal protein S27a and ribosomal protein L6, were identified by the BLAST searching followed by sequence analysis. These findings suggest that environmental status of Masan Bay could hinder protein synthesis that is required for maintaining brain functions and thus cause the dysfunction of fish physiology.

Identification of Copper and Cadmium Induced Genes in Alfalfa Leaves through Annealing Control Primer Based Approach

  • Lee, Ki-Won;Rahman, Md. Atikur;Zada, Muhammad;Lee, Dong-Gi;Kim, Ki-Yong;Hwang, Tae Young;Ji, Hee Jung;Lee, Sang-Hoon
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.35 no.3
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    • pp.264-268
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    • 2015
  • The present research investigated copper and cadmium stress-induced differentially expressed genes (DEGs) using annealing control primers (ACP) with the differential display reverse transcription polymerase chain reaction technique in alfalfa (Medicago sativa L. cv. Vernal) leaves. Alfalfa leaves were subjected to $250{\mu}M$ of copper and cadmium treatment for a period of 6 h. A total of 120 ACPs was used. During copper and cadmium treatment, 6 DEGs were found to be up or down regulated. During copper stress treatment, 1 DEG was up-regulated, and 3 novel genes were discovered. Similarly, during cadmium stress treatment, 1 DEG was up-regulated and 5 novel genes were identified. Among all 6 DEGs, DEG-4 was identified as the gene for trans-2,3-enoyl-CoA reductase, DEG-5 was identified as the gene for senescence-associated protein DIN1 and DEG-6 was identified for caffeic acid O-methyltransferase. All the up-regulated genes may play a role in copper and cadmium stress tolerance in alfalfa.

Identification of Differentially Expressed Genes in Four Different Growing Stages in Korea Native Chicken Liver (황갈색 재래닭의 간에서 성장 단계별 차등 발현 유전자 분석)

  • Lee, K.Y.;Yu, S.L.;Jung, K.C.;Jang, B.K.;Choi, K.D.;Lee, J.H.
    • Korean Journal of Poultry Science
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    • v.34 no.2
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    • pp.85-90
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    • 2007
  • The chicken liver has been involved in various biological functions including detoxification, glycogen storage and plasma protein synthesis. The aim of this study was to investigate differentially expressed genes in chicken liver in four different growing stages. Using 10 arbitrary Annealing Control Primers (ACPs), five differentially expressed genes have been identified. Based on the Basic Local Alignment Search Tool (BLAST) search results, three of them were matched with previously known genes, and the other two were matched with unknown EST sequence and a hypothetical protein, respectively. In order to confirm the expression results, quantitative real-time PCR was also performed. The high similarities between the expression data using arbitrary ACPs and quantitative real-time PCR indicate that the identified genes are the real differentially expressed genes in different growing stages. The genes identified in this study can be used as valuable biomarkers in chicken with further investigation of the functions.