Minggu, 13 November 2011

MOLECULAR PATHOLOGY OF LUNG CANCER

 
In contrast to most organs or other, a hot-On Lungs A Very Show System Epithelial tumors Offer dying in their histology and location differences. This tumors A-level exhibit different exposure Relationship met tower, met or central carcinomas Relationship met or Largest. Found in a molecular lesion in tumors Some share common characteristics namely changes Elements Have Their precursor Also lesions, some well defined differences, while his other poorly understood Because AT difficulty or Chicken Identifying surgical resection for A- existing tumors. Zoology is understood Their Natural History too bad. In the advent of OM Methods later lung cancer Molecular and Genetic preneoplastic lesions hot research His warm Will help define tissue samples from all major molecular abnormalities Responsible for lung cancer development and progression. Gene-specific and copy number Modification approaches have established that mutations Will Have Hot proven Unique in lung cancer. Simultaneously, at the molecular profiling studies, DNA, RNA, A-levels and protein molecular classification of lung cancer Have, while Also the possibility of improvement to response to treatment and prognosis or predict hot. Integration in
This Defeating Of Different platforms or overtraining Might and instability of the identified signatures. Combination of paid clinical covariates molecular profiling approaches and best practice for building the new models for lung cancer. OM ultimate aim is hot molecular changes can be hot in the Present View A ONE-identify Patient tumor or OM, and this information used for the hot early molecular detection, prediction Of Biological / Clinical behavior and prognosis, and whether selection or rational Development of therapeutics.
 
Accurate pathological classification of lung cancer is essential for ensuring patient interest
Receive appropriate therapy. Out-A histopathological and biological perspective, A-Very complex, lung neoplasm (1, 2). There are several histological types, are met or small cell lung carcinoma Most common (SCLC, 15%) and or non-small cell lung cancer (NSCLC), squamous cell carcinoma, such as variants (30%), adenocarcinoma (45%), and large cell carcinoma (9%) (3). Advances in molecular technologies Have a understanding of the biological Processes involved in a pathogenesis of lung cancer. Recent findings have indicated Lung Cancer Clinical obvious that the result of the accumulation Genetic and epigenetic-A Large Number of changes, including abnormalities in a inactivation or tumor suppressor genes and activation of oncogenes or (1, 2). This all Have on molecular abnormalities or "Characteristics of Cancer," Including deviations or in the self-growth signals, insensitivity to anti-growth signals, sustained angiogenesis, evasion of apoptosis, unlimited replicative potential, and tissue Invasion body and spread (4, 5). Recent progress have unique molecular A-rational capabilities targeted therapies for OM Hot develop lung cancer. This advances -A led to exciting new therapies and new uses of die area Cancer-specific molecular abnormalities which cancer cells die or Chance or more Reply to specific agents (6, 7). In this setting of the molecular abnormalities Analysis of lung cancers is important steeds, and whether adequate Integration of molecular and pathological examinations in the routine diagnosis, Classification, and choice of therapy or A-Challenge presents interesting options. Although many molecular abnormalities in his Clinical described obvious lung cancers, is more than Little known relative or to die preceding molecular events Long or underlying cancer development and more than lung cancer genetic basis carcinogenesis (2, 8, 9). In the past decade, studies or information provided differences Regarding characterization of molecular changes in the preneoplastic In a long pathogenesis of cancer, especially squamous cell carcinoma andadenocarcinoma (8, 10). In chapter we describe says or Most Relevant molecular abnormalities AT detected lung cancer related to clinical and pathological features met their. WE WILL also determine whether this current knowledge of the Early Form of Cancer pathogenesis and progression. It is shown that his hot-Multiple Genetic changes in clinically evident Find Long Different forms of cancer involve dominant and well-known oncogenes and alleged recessive oncogenes (tumor suppressor genes) (1, 2). Growth factors, many of the regulatory Are peptides to their receptors and cancer cells overexpressing door and placed adjacent Normal-Appearing Cells in the Lungs and IS AN autocrine and paracrine series Stimulating Growth of loops in this neoplasm (11). In List of the recessive oncogenes Are involved is probably lung cancer known OM 10-15 and contain so many alleged genes (1, 2). Recessive oncogenes inactivated Will Be A Hot supposed middle-door two-step Both alleles process. Knudson (12) or suggested that first "hit" is often A point mutation, while the second allele is inactivated, then A door-Medium chromosomal deletion, translocation, other events of, such as methylation of genes Promoter regions. Until shortly before Were chromosomal rearrangements associated mainly paid blood related Cancer and rarely to solid tumors. IT has been shown recently, small Within chromosome 2p inversion results in a formation composed of A-fusion gene Parts of the echinoderm microtubule Associated Protein-like 4 gene and Anaplastic lymphoma kinase gene in the NSCLC cells (eml-ALK fusion) (13, 14). To give this discovery that genes activated met Merger associated chromosomal Both AT Probably Are lung cancer rearrangements and often important. Studies of the Great numbers of lung cancers Have Different Patterns demonstrated that- changes in molecular size between the Two Groups of Long carcinoma (SCLC en NSCLC) (Table 1) (a) and histological Under The main two types of non-small cell lung cancer (Squamous cell carcinomas and adenocarcinomas, Table 2)
Keywords Molecular Pathology • • • Lung Cancer tumor suppressor oncogenes
Preneoplasia • Genealogy • pathogenesis

0 komentar:

Posting Komentar

 
 
Copyright © Mesothelioma.Asbestos.Lawyers