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Author: Peter Bannasch Publisher: Springer ISBN: 9783540043089 Category : Medical Languages : en Pages : 108
Book Description
The transformation of a normal cell into a cancer cell is not a sudden but a slow continuous process which may take years. A systematic study of the morphological and structural changes that take place during this cellular transformation has only become possible since methods were developed to induce a high incidence of tumors in experimental animals. The growth of such tumors can be followed during all stages of their development. For several reasons, rat liver has proved to be particularly suitable. For more than thirty years it has been known that one can induce tumors in rat liver experimentally with many different substances. The azo dyes which were used originally (YOSHIDA, 1932; KINOSITA, 1937) have since been replaced by more potent carcinogens. The recently discovered nitrosamines, dimethylnitrosamine (MAGEE and BARNES, 1956), diethylnitrosamine (SCHMAHL et aI. , 1960) and N-nitrosomorpholine (DRUCKREY et aI. , 1961) should be mentioned in this context. Used in the proper dose, these carcinogens lead within a few months to the formation of multicentric hepatomas in practically 100 Ufo of the experimental animals, and are therefore a very useful tool for studies of the cytogenesis of cancer (see BUCHNER, 1961; GRUND MANN, 1961; GRUNDMANN and SIEBURG, 1962; OEHLERT and HARTJE, 1963; BAN NASCH and MULLER, 1964). The liver parenchyma as such offers a very big technical advantage because it consists of a rather homogenous cell population.
Author: Peter Bannasch Publisher: Springer ISBN: 9783540043089 Category : Medical Languages : en Pages : 108
Book Description
The transformation of a normal cell into a cancer cell is not a sudden but a slow continuous process which may take years. A systematic study of the morphological and structural changes that take place during this cellular transformation has only become possible since methods were developed to induce a high incidence of tumors in experimental animals. The growth of such tumors can be followed during all stages of their development. For several reasons, rat liver has proved to be particularly suitable. For more than thirty years it has been known that one can induce tumors in rat liver experimentally with many different substances. The azo dyes which were used originally (YOSHIDA, 1932; KINOSITA, 1937) have since been replaced by more potent carcinogens. The recently discovered nitrosamines, dimethylnitrosamine (MAGEE and BARNES, 1956), diethylnitrosamine (SCHMAHL et aI. , 1960) and N-nitrosomorpholine (DRUCKREY et aI. , 1961) should be mentioned in this context. Used in the proper dose, these carcinogens lead within a few months to the formation of multicentric hepatomas in practically 100 Ufo of the experimental animals, and are therefore a very useful tool for studies of the cytogenesis of cancer (see BUCHNER, 1961; GRUND MANN, 1961; GRUNDMANN and SIEBURG, 1962; OEHLERT and HARTJE, 1963; BAN NASCH and MULLER, 1964). The liver parenchyma as such offers a very big technical advantage because it consists of a rather homogenous cell population.
Author: Thomas Seyfried Publisher: John Wiley & Sons ISBN: 1118310306 Category : Science Languages : en Pages : 482
Book Description
The book addresses controversies related to the origins of cancer and provides solutions to cancer management and prevention. It expands upon Otto Warburg's well-known theory that all cancer is a disease of energy metabolism. However, Warburg did not link his theory to the "hallmarks of cancer" and thus his theory was discredited. This book aims to provide evidence, through case studies, that cancer is primarily a metabolic disease requring metabolic solutions for its management and prevention. Support for this position is derived from critical assessment of current cancer theories. Brain cancer case studies are presented as a proof of principle for metabolic solutions to disease management, but similarities are drawn to other types of cancer, including breast and colon, due to the same cellular mutations that they demonstrate.
Author: Alphonse E. Sirica Publisher: CRC Press ISBN: 9780849347467 Category : Medical Languages : en Pages : 380
Book Description
The Role of Cell Types in Hepatocarcinogenesis provides the first comprehensive, review and analysis of cell precursor relationships believed to be important in the development of hepatocellular carcinoma and other types of nonmesenchymal liver tumors. The book focuses on cell lineages in liver development and neoplastic formation in both experimental animal models and humans. It also critically reviews current information supporting the existence of a "facultative liver stem cell" and its potential role as an alternative cell of origin in the genesis of various hepatic neoplasms, including hepatocellular carcinoma. Other significant topics covered include cellular and viral oncogenes, p53 gene and growth factors in hepatocarcinogenesis, and the use of newly developed transgenic animal and cell culture models designed for investigating the pathogenesis of hepatocellular carcinoma. Numerous figures and tables illustrate difficult concepts, and an extensive listing of references is included. The Role of Cell Types in Hepatocarcinogenesis is a practical reference volume that basic and clinical researchers in liver carcinogenesis, development, and differentiation will find useful in their day-to-day work.
Author: A. Columbano Publisher: Springer Science & Business Media ISBN: 1461536944 Category : Medical Languages : en Pages : 632
Book Description
"chemical carcinogenesis" is the general title of the series of international meetings which are held, biannually, in sardinia (Italy) since 1981. Despite the generality of the title, the main effort of the scientific Committee has been to pursue a coherent line around one of the most distinguishing features of carcinogenesis: the "multifasic" development of the process. Given that many chemical compounds are known to cause "experimental cancer", many questions still remain unresolved or are given too simplistic answers. The very first question concerning the interaction between the chemical carcinogen and the molecular target in the cell is a debatable one despite the overwhelming literature in this field. It is certain that chemical carcinogens are toxic to cells and cause DNA damage: however it is still an open question as to how to relate these changes to the different stages of carcinogenesis including initiation. We have not to forget that 1/3 to 2/3 of the average life time of a given species elapses between the experimental administration of the carcinogen and the appearance of "cancer". The experimental manipulation of carcinogenesis through the use of "adequate biological models" has not simplified the problems about cancer, but it has led us to face the complexity of otherwise elementary biological properties, cell proliferation and differentiation. The understanding of this biological complexity is not just theoretical, but it may give us those adequate conceptual tools to approach "cancer" also from a medical point of view.
Author: Francisco Feo Publisher: Springer Science & Business Media ISBN: 1475796404 Category : Science Languages : en Pages : 646
Book Description
About two centuries after the communication by Sir Percival Pott that the "chimney sweeper disease" was a cancer and its suggestion that active compounds of soot were the causative agents, and about one century after the description of urinary bladder cancer in dye workers, an enormous number of substances have been synthesized and have probably come into contact with man. Research in cancer prevention is of primary importance, and may receive continuous support from new discoveries on cancer etiology and pathogenesis. If one accepts the multistage model of chemical carcinogenesis, one has also to accept that many events occur between the contact of carcino genic compounds and their specific targets and the development of a clinically recognizable neoplasm. Thus, animal studies become essential to elucidate the different steps by which chemical carcinogens induce neoplasia. The analysis of these steps and the comparative evaluation of experimental models is essential to an understanding of pathogenesis.
Author: Olav Hilmar Iversen Publisher: CRC Press ISBN: 9780891165798 Category : Medical Languages : en Pages : 364
Book Description
Proceedings of an international conference held in Oslo, Aug. 1986. Topics include: philosophy of science; oncogenes; two-stage theory; aging; phenotypic cellular changes; and growth control, cell proliferation, hormonal carcinogenesis, clonality. Acidic paper. Annotation copyright Book News, Inc. Portland, Or.
Author: Arthur Zimmermann Publisher: Springer ISBN: 9783319269559 Category : Medical Languages : en Pages : 3517
Book Description
This book covers all liver tumors and lesions that clinically and radiologically mimic liver tumors. It provides readers with a comprehensive overview of this complex and rapidly evolving field. All aspects of surgical pathology are addressed, supplemented by detailed presentations of the lesions’ cell-biologic and molecular features. In addition, the methods employed for diagnosis and diagnostic algorithms are discussed. It appeals to pathologists and hepatologists and serves as an invaluable aid to diagnosis.The field of liver tumors and tumor-like lesions in adults and children has experienced tremendous advances in recent years. Specifically, the recognition of novel entities, deepened insights into known tumors, and refinement of classifications have necessitated continual updates and reappraisals. In addition, previous understanding of hepatic carcinogenesis and tumor progression has been transformed by the very rapid evolution of our understanding of cell biology, genomics, signaling pathways, cell interactions, and mechanisms of invasion and spread of hepatic tumor cells. These general pathology issues must be combined with surgical pathology if a comprehensive understanding of liver tumor pathology is to be achieved.
Author: Peter Bannasch
Author: Peter Bannasch
Author: Alecsandru Ioan Baba
Author: Thomas Seyfried
Author: 
Author: 
Author: Alphonse E. Sirica
Author: A. Columbano
Author: Francisco Feo
Author: Olav Hilmar Iversen
Author: Arthur Zimmermann