Abstract:
PURPOSE OF REVIEW:Molecular genetic alterations characterize the development of human cancer. Recent advances in molecular genetic technology and the success of the human genome project have empowered investigators with new tools in dissecting the cancer genome for discovery of new cancer-associated genes. The purpose of this review is to highlight the emerging molecular genetic methodologies and summarize their principles, applications, and potential technical challenges. The critical issue in sample preparation and a strategy that combines different molecular techniques to facilitate the identification of novel cancer-associated genes will be discussed. RECENT FINDINGS:Digital karyotyping and array-based techniques including array comparative genomic hybridization and representational oligonucleotide microarray analysis have been recently developed to study the genomic landscape in human cancer. These innovations provide tools to quantitatively measure DNA copy number changes in cancer and to map those changes directly onto the human genome. Digital karyotyping is based on counting the sequence tags that are distributed in the human genome and thus, it provides a digital readout to precisely outline the amplified and deleted chromosomal regions. Array-based technologies, on the other hand, compare the content of cancer and reference genomes followed by localizing the amplified or deleted signals in chromosomal regions using an array hybridization technique. In addition, a high-throughput mutational analysis platform has been available for a large-scale mutational analysis by using an automated capillary sequencing device and sophisticated bioinformatic tools. A number of examples have demonstrated the promise of these new molecular genetic approaches in identifying several potential new oncogenes and tumor suppressors. SUMMARY:As compared with conventional cytogenetics methods, digital karyotyping, array comparative genomic hybridization, and representational oligonucleotide microarray analysis provide an unprecedented mapping resolution that allows a precise localization of the amplified and deleted chromosomal regions. These technologies can be combined with gene expression profiling and high-throughput mutational analysis to facilitate the search for new cancer-associated genes. It is expected that applying these new technologies will lead to discovery of a host of novel oncogenes and tumor suppressors, which will have a significant impact in our understanding of tumorigenesis and in the clinical management of cancer patients.
journal_name
Curr Opin Oncoljournal_title
Current opinion in oncologyauthors
Shih IeM,Wang TLdoi
10.1097/01.cco.0000147382.97085.e4keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
33-8issue
1eissn
1040-8746issn
1531-703Xpii
00001622-200501000-00008journal_volume
17pub_type
杂志文章,评审abstract::Recent efforts have been directed at identifying and characterizing candidate tumor suppressor genes and the activities of oncogenes in primary brain tumors. The p53 gene mapping to region p13 of chromosome 17 has several characteristics as a tumor suppressor gene. The wild-type p53 protein, which is a transcriptional...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199106000-00006
更新日期:1991-06-01 00:00:00
abstract:PURPOSE OF REVIEW:To describe recent advances in the diagnosis and treatment of paraneoplastic neurological syndromes (PNS). RECENT FINDINGS:PNS are rare complications of cancer caused by an immune cross-reaction between antigens expressed by tumor cells and neurons. The target of the immune attack can be an intracell...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0000000000000479
更新日期:2018-11-01 00:00:00
abstract:PURPOSE OF REVIEW:Management of the epithelial ovarian cancer (EOC) remains a therapeutic challenge, with continued poor overall survival (OS). Given low chemotherapy response rates for recurrent disease and short survival times, new treatment options with improved therapeutic indices for targeting cancer's vulnerabili...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0b013e3283564230
更新日期:2012-09-01 00:00:00
abstract::The vast majority of adults with acute lymphoblastic leukemia (ALL) now achieve remission with current intensive chemotherapy regimens. Nevertheless, most adults with ALL will eventually relapse and die of their disease. Specific clinical and molecular-cytogenetic prognostic factors have been identified that are begin...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-200101000-00004
更新日期:2001-01-01 00:00:00
abstract:PURPOSE OF REVIEW:Endometrial cancer is the most common gynaecological malignancy for which platinum-based and anthracycline-based combinations, with/without taxanes, are the most active but toxic treatments. The preliminary results achieved with two molecule-targeted agents suggest that a better knowledge in molecular...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0b013e32830b0deb
更新日期:2008-09-01 00:00:00
abstract:PURPOSE OF REVIEW:The aim of this review is to describe the major steps leading to the immunosuppressive tumor microenvironment and to summarize some of the new immunotherapies that interfere with these mechanisms. RECENT FINDINGS:Immunotherapy has improved the outcome of relapsed/metastatic head and neck squamous cel...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0000000000000623
更新日期:2020-05-01 00:00:00
abstract::Phosphatases are regulatory enzymes that antagonize the action of kinases within the cell. An understanding of the contribution of kinases to cancer has emerged during the past two decades; however, our understanding of phosphatases in cancer has lagged behind. Currently, three phosphatases have been implicated in the...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199801000-00014
更新日期:1998-01-01 00:00:00
abstract::Oligodeoxynucleotides have been proposed as both in vitro and in vivo inhibitors of gene expression because of the specificity of Watson-Crick base pair hybridization. Phosphodiester oligodeoxynucleotides (normal DNA) cannot be used as drugs because they are nuclease sensitive. Significant efforts have been made to st...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199411000-00010
更新日期:1994-11-01 00:00:00
abstract:PURPOSE OF REVIEW:Langerhans cell histiocytosis (LCH) is a rare disorder characterized by the infiltration of involved tissues by specialized dendritic cells. The demonstration of the constant activation of the mitogen-activated protein kinase (MAPK) pathway in LCH lesions has been a breakthrough in the understanding o...
journal_title:Current opinion in oncology
pub_type: 杂志文章
doi:10.1097/CCO.0000000000000707
更新日期:2020-12-09 00:00:00
abstract::Given the burden of suffering associated with the development of ovarian cancer and the clear survival gradient related to the stage of disease at diagnosis, there is much enthusiasm for the development of effective screening strategies aimed at early detection. To date, no evidence exists to justify mass population s...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-200109000-00015
更新日期:2001-09-01 00:00:00
abstract:PURPOSE OF REVIEW:Relapse has become the leading cause of death following allogeneic hematopoietic stem cell transplantation (HSCT). Despite improved understanding of the biology that underlies the graft-versus-leukemia/tumor effect the relapse rate did not decrease over the past 20 years. In general, prognosis is poor...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0b013e328342c6c8
更新日期:2011-03-01 00:00:00
abstract:PURPOSE OF REVIEW:We aimed to summarize the recent reflections and collaborative initiatives pertaining to the definition of more appropriate eligibility criteria in cancer clinical trials. RECENT FINDINGS:There is an intrinsic tension between two opposite purposes when it comes to defining eligibility criteria: on th...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0000000000000470
更新日期:2018-09-01 00:00:00
abstract::The use of highly sensitive and specific assays to detect residual disease in patients with acute leukemia should provide a basis for optimizing therapy and maximizing each patient's chance of cure. Strategies for detecting residual disease are based on biologic properties that allow acute leukemia cells to be disting...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199801000-00004
更新日期:1998-01-01 00:00:00
abstract:PURPOSE OF REVIEW:Significant advances have been made in the treatment of younger patients with acute myeloid leukemia over the past 3 decades, but prognosis in the elderly has remained dismal, with median survival times of only a few months. Although a small percentage of older patients may be cured by standard chemot...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0000000000000124
更新日期:2014-11-01 00:00:00
abstract::The identification of new active agents for the treatment of squamous carcinoma of the head and neck remains a high priority for clinical investigators. For the past several years a number of investigational drugs have demonstrated activity in patients with recurrent or metastatic disease. Included are the following a...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199605000-00009
更新日期:1996-05-01 00:00:00
abstract::Perioperative brachytherapy results in a better local control rate than surgery alone for extremity soft tissue sarcoma. Brachytherapy enables the delivery of a high radiation dose to a limited volume of tissue, allows the reduction of radiation treatment time, enables direct visualization of the tumor bed and surroun...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-200307000-00006
更新日期:2003-07-01 00:00:00
abstract::Controversy exists over the role that environmental estrogens, such as pesticides or polychlorinated biphenyls (PCBs), might play as risk factors for breast cancer. Several laboratory studies have suggested that these chemicals function as weak estrogens, binding to the estrogen receptor and inducing various measures ...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199809000-00018
更新日期:1998-09-01 00:00:00
abstract:PURPOSE OF REVIEW:Most patients affected by lung cancer are treated with chemotherapy, and hence are at risk of myelosuppression. Hematopoietic growth factors have a relevant role in this setting, as they can improve quality of life, reduce the rate of chemotherapy-induced complications and allow the administration of ...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0000000000000268
更新日期:2016-03-01 00:00:00
abstract::Diarrhea is a common event in the clinical history of cancer patients. It can be caused by the presence of tumor or it can be a side effect of treatment. The latter problem is occurring more often because new drugs (CPT-11) or drug combinations (fluorouracil plus interferon or leucovorin) have diarrhea as the dose-lim...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199507000-00006
更新日期:1995-07-01 00:00:00
abstract:PURPOSE OF REVIEW:The most common mechanism of resistance to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) is acquisition of the T790M gatekeeper mutation. Third-generation EGFR TKIs irreversibly inhibit EGFR mutants (EGFRm), especially T790M, while sparing wild-type EGFR. There are several ...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/CCO.0000000000000350
更新日期:2017-03-01 00:00:00
abstract::Transforming growth factor-beta is believed to play a dual role in carcinogenesis. Through its ability to inhibit cellular proliferation it suppresses tumor development in its early stages, but in the course of tumor progression malignant cells often acquire resistance to growth inhibition by transforming growth facto...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-200101000-00014
更新日期:2001-01-01 00:00:00
abstract::In 1996 progress has been made toward a better understanding of acute leukemias, their biology, the effects of different intensity or subtype-specific chemotherapy, and the contribution of bone marrow transplantation. In acute lymphoblastic leukemia, high-dose cytarabine in induction and in postremission treatment imp...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199701000-00004
更新日期:1997-01-01 00:00:00
abstract:PURPOSE OF REVIEW:Immunotherapy of HPV-induced premalignant anogenital lesions and cervical cancer has made impressive progress. HPV as causative agent is targeted by prophylactic and therapeutic vaccination strategies. Preclinical and clinical studies have shown induction of natural and/or vaccine-induced immune respo...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-200409000-00013
更新日期:2004-09-01 00:00:00
abstract::Several epithelial tumors display epidermal growth factor receptor (EGFR) overexpression (with or without EGFR gene amplification) that is often associated with increased production of EGFR ligands. This permits the activation of endogenous tumor EGFR via autocrine mechanisms, resulting in cellular proliferation and t...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-200111000-00012
更新日期:2001-11-01 00:00:00
abstract:PURPOSE OF REVIEW:Concept of refractory coeliac disease (RCD) emerged in the past decade and refers to persistence of malnutrition and intestinal villous atrophy for more than 1 year strict gluten-free diet in coeliac patients. Diagnosis of this condition remains difficult and conditions treatment and follow-up. RECEN...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/01.cco.0000432526.47228.b6
更新日期:2013-09-01 00:00:00
abstract::Disease-free survival for patients with small sarcomas of bone has been impressively improved with the use of intensive combination chemotherapy and safe local control with surgery or radiation. The ability of monoclonal antibodies to recognize different antigens has allowed new insights into the histogenesis and has ...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:
更新日期:1994-07-01 00:00:00
abstract::Enormous progress has been made in the last several years in delineating signal transduction pathways associated with cell proliferation and apoptosis. The components of these pathways, which include both oncogenes and tumor suppressors, may provide viable targets for therapeutic intervention for the treatment of canc...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199701000-00015
更新日期:1997-01-01 00:00:00
abstract::Gene transfer for the treatment of cancer is a rapidly expanding field. Recent studies can be divided into four main areas: 1) transfer of suicide genes that convert inactive prodrugs into cytotoxic compounds, 2) transfer of genes encoding cytokines and stimulatory markers to enhance immunogenicity against tumors, 3) ...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199611000-00010
更新日期:1996-11-01 00:00:00
abstract::Pleural effusions are a common development in patients with cancer. The optimal means of control are not defined, but systemic treatment is often effective in patients with drug-sensitive tumors. Local treatments advocated in the management of malignant pleural effusions differ in the means of drainage, the length of ...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-199208000-00007
更新日期:1992-08-01 00:00:00
abstract:PURPOSE OF REVIEW:The purpose of this review is to highlight the most important developments in the diagnosis, prevention, and management of prostate cancer reported in the past year that have been published in the medical literature. RECENT FINDINGS:Recent research has yielded important insights into the effects of l...
journal_title:Current opinion in oncology
pub_type: 杂志文章,评审
doi:10.1097/00001622-200405000-00009
更新日期:2004-05-01 00:00:00