• 제목/요약/키워드: gene involvement

검색결과 287건 처리시간 0.027초

Gallstone Etiopathogenesis, Lith and Mucin Genes and New Treatment Approaches

  • Goral, Vedat
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제17권2호
    • /
    • pp.467-471
    • /
    • 2016
  • Gallstones constitute one of the more common and relatively costly conditions of the gastrointestinal system and are a major risk factor for gallbladder cancer. Most gallstone cases involve individuals younger than 60 years of age, those older representing 9% of the total in one series. There are many risk factors for gallstones and Lith and Mucin genes, for example, play important roles in their formation. Surgery is one therapeutic approach but in the future it is to be expected that drugs for prevention of gallstones will be developed in the future. This will have clear implications for gallbladder cancer control.

A Novel Translocation Involving RUNX1 and HOXA Gene Clusters in a Case of Acute Myeloid Leukemia with t(7;21)(p15;q22)

  • Moon, Yeonsook;Horsman, Douglas E.;Humphries, R. Keith;Park, Gyeongsin
    • IMMUNE NETWORK
    • /
    • 제13권5호
    • /
    • pp.222-226
    • /
    • 2013
  • Translocations involving chromosome 21q22 are frequently observed in hematologic malignancies including acute myeloid leukemia (AML), most of which have been known to be involved in malignant transformation through transcriptional dysregulation of Runt-related transcription factor 1 (RUNX1) target genes. Nineteen RUNX1 translocational partner genes, at least, have been identified, but not Homeobox A (HOXA) genes so far. We report a novel translocation of RUNX1 into the HOXA gene cluster in a 57-year-old female AML patient who had been diagnosed with myelofibrosis 39 months ahead. G-banding showed 46,XX,t(7;21)(p15;q22). The involvement of RUNX1 and HOXA genes was confirmed by fluorescence in situ hybridization.

Heat shock transcription factors and sensory placode development

  • Nakai, Akira
    • BMB Reports
    • /
    • 제42권10호
    • /
    • pp.631-635
    • /
    • 2009
  • The heat shock transcription factor (HSF) family consists of at least three members in mammals and regulates expression of heat shock proteins in response to heat shock and proteotoxic stresses. Especially, HSF1 is indispensable for this response. Members of this family are also involved in development of some tissues such as the brain and reproductive organs. However, we did not know the molecular mechanisms that regulate developmental processes. Involvement of HSFs in the sensory development was implicated by the finding that human hereditary cataract is associated with mutations of the HSF4 gene. Analysis of gene-disrupted mice showed that HSF4 and HSF1 are required for the lens and the olfactory epithelium, respectively. Furthermore, a common molecular mechanism that regulates developmental processes was revealed by analyzing roles of HSFs in the two developmentally-related organs.

Molecular cloning and nucleotide sequence of schizosaccharomyces pombe Homologue of the receptor for activated protein kinase C gene

  • Park, Seung-Keil;Yoo, Hyang-Sook
    • Journal of Microbiology
    • /
    • 제33권2호
    • /
    • pp.128-131
    • /
    • 1995
  • Using differential hybridization, we selected the prk gene fortuitously from Schizosaccharomyces pombe homologous to RACK1 of rat which encodes the receptor for activated protein kinase C. The cDNA sequence of prk was determined and its deduced amino acid sequence was 76% homologous to RACK1 and had the feature of trimeric G protein bata subunit. The specific amino acid sequences required for the protein kinase C binding were also present in Prk as in the case of RACK1 protein. From these similarities, we suggest that the Prk is protein kinase C binding protein of S. prombe. The involvement of Prk in signal transduction mediated by protein kinase C remained to be studied.

  • PDF

Long noncoding RNA involvement in cancer

  • Maruyama, Reo;Suzuki, Hiromu
    • BMB Reports
    • /
    • 제45권11호
    • /
    • pp.604-611
    • /
    • 2012
  • Recent advances in genome and transcriptome analysis have enabled identification of numerous members of a new class of noncoding RNA, long noncoding RNA (lncRNA). lncRNAs are broadly defined as RNA molecules greater than 200 nt in length and lacking an open reading frame. Recent studies provide evidence that lncRNAs play central roles in a wide range of cellular processes through interaction with key component proteins in the gene regulatory system, and that alteration of their cell- or tissue-specific expression and/or their primary or secondary structures is thought to promote cell proliferation, invasion and metastasis. The biological and molecular characteristics of the large majority of lncRNAs remains unknown, and it is anticipated that improved understanding of the roles played by lncRNAs in cancer will lead to the development of novel biomarkers and effective therapeutic strategies.

Involvement of a Polyketide Synthetase ClPKS18 in the Regulation of Vegetative Growth, Melanin and Toxin Synthesis, and Virulence in Curvularia lunata

  • Gao, Jin-Xin;Chen, Jie
    • The Plant Pathology Journal
    • /
    • 제33권6호
    • /
    • pp.597-601
    • /
    • 2017
  • The clpks18 gene was first cloned and identified in Curvularia lunata. It contains 6571 base pairs (bp) and an 6276 bp open reading frame encoding 2091 amino acids. The ClPKS18 deletion mutant displayed an albino phenotype, and almost lost the ability to product 5-(hydroxymethyl) furan-2-carboxylate (M5HF2C) toxin, implying that clpks18 gene in C. lunata is not only involved in 1,8-dihydroxynaphthalene melanin synthesis, but also relatively associated with M5HF2C toxin biosynthesis of the pathogen. The pathogenicity assays revealed that ${\Delta}ClPKS18$ was impaired in colonizing the maize leaves, which corresponds to the finding that ClPKS18 controls the production of melanin and M5HF2C in C. lunata. Results indicate that ClPKS18 plays a vital role in regulating pathogenicity of in C. lunata.

지렁이 labial 유전자의 동정 및 머리재생 시 발현 양상에 관한 연구 (Isolation of labial Gene in the Oligochaeta Perionyx excavatus and Expression Patterns during Head Regeneration)

  • 조성진;이명식;탁은식;허소영;이종애;박범준;조현주;신주옥;박순철
    • 한국토양동물학회지
    • /
    • 제8권1_2호
    • /
    • pp.1-6
    • /
    • 2003
  • Hox genes are pivotal in the control of morphogenesis along the anterior-posterior (AP) axis in various bilaterians. Several indications suggest their involvement in the control of cell growth and regeneration. For the labial full-length fragment, RACE-PCR was employed to obtain the 3' and 5' franking regions. Semi-quantitative RT-PCR analysis revealed that the labial expression began to increase at 12 hours after amputation. The peak expression was approximately 1.5-fold more than the unamputated controls. This result could give us information on the significance of Hox genes and the relationships between Hox genes during regeneration.

  • PDF

Involvement of EBV-encoded BART-miRNAs and Dysregulated Cellular miRNAs in Nasopharyngeal Carcinoma Genesis

  • Xie, Yuan-Jie;Long, Zhi-Feng;He, Xiu-Sheng
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제14권10호
    • /
    • pp.5637-5644
    • /
    • 2013
  • The definite molecular mechanisms underlying the genesis of nasopharyngeal carcinomas (NPCs) remain to be completely elucidated. miRNAs are small non-coding RNAs which are implicated in cell proliferation, apoptosis, and even carcinogenesis through negatively regulating gene expression post-transcriptionally. EBV was the first human virus found to express miRNAs. EBV-encoded BART-miRNAs and dysregulated cellular miRNAs are involved in carcinogenesis of NPC by interfering in the expression of viral and host cell genes related to immune responses and perturbing signal pathways of proliferation, apoptosis, invasion, metastasis and even radio-chemo-therapy sensitivity. Additional studies on the roles of EBV-encoded miRNAs and cellular miRNAs will provide new insights concerning the complicated gene regulated network and shed light on novel strategies for the diagnosis, therapy and prognosis of NPC.

SPG4 유전자 변이에 의한 유전경직하반신마비를 보인 가족 1예 (One Family with Hereditary Spastic Paraplegia due to SPG4 Gene Mutation)

  • 조정선;김두응;김정미;한영수;하상원;박상은;한정호;조은경
    • Annals of Clinical Neurophysiology
    • /
    • 제7권2호
    • /
    • pp.138-140
    • /
    • 2005
  • Strumpell, in 1880, was the first to describe familial case of spastic paraplegia characterized by progressive weakness and spasticity of the lower limbs with little or no involvement of the upper extremities. This syndrome is heterogeneous in inheritance, age of onset, severity and associated signs. We present one family with autosomal dominant hereditary spastic paraplegia (HSP) due to SPG4 (spastin) gene mutation which is confirmed by genomic DNA isolated from peripheral blood.

  • PDF

Relationship Between Plant Viral Encoded Suppressor to Post-transcriptional Gene Silencing and Elicitor to R Gene-specific Host Resistance

  • Park, Chang-Won;Feng Qu;Tao Ren;T. Jack Morris
    • The Plant Pathology Journal
    • /
    • 제20권1호
    • /
    • pp.22-29
    • /
    • 2004
  • Many important horticultural and field crops are susceptible to virus infections or may possess a degree of resistance to some viruses, but become infected by others. Plant viruses enter cells through the presence of wounds, and replicate intracellularly small genomes that encode genes required for replication, cell-to-cell movement and encapsidation. There are numerous evidences from specific virus-host interactions to require the involvement of host factors and steps during viral replication cycle. However, viruses should deal with host defense responses either by general or specific mechanisms, targeting viral components or genome itself. On the other hand, the host plants have also adapted to defend themselves against viral attack by operating different lines of resistance responses. The defense-related interactions provide new insights into the complex molecular strategies for hosts for defense and counter-defense employed by viruses.