This edited volume, Hormone Therapy and Replacement in Cancer and Aging-related Diseases, is a collection of reviewed and relevant research chapters, offering a comprehensive overview of recent developments in the field of hormone replacement therapy. The book comprises single chapters authored by various researchers and edited by experts active in the hormone replacement therapy research area. All chapters are complete in themselves but united under a common research study topic. This publication aims at providing a thorough overview of the latest research efforts by international authors on hormone replacement therapy, and opens new possible research paths for further novel developments.

Hormonal carcinogenesis is an important and controversial area of current research. In addition to accelerating existing cancers, can hormones play the role of primary carcinogens? How do genetic factors influence hormone-related cancer risk? Hormones, Genes, and Cancer addresses these questions. Over the past few decades, cancer research has focused on external environmental causes(e.g., tobacco smoke, viruses, asbestos). With the advent of new genetic sequencing techniques, we are just now beginning to understand how the body's internal environment(i.e., the hormones and growth factors that determine normal development) influences cancer etiology and prevention. From molecular insights to clinical analyses, this volume provides state-of-the-art information on the complex interactions between hormones and genes and cancer. The epidemiology and molecular endocrinology of prostate, breast, uterine, ovarian and testicular cancer are detailed in this timely treatise.

The series, Hormones in Health and Disease, was launched in 1993 to provide a scientific platform for investigators engaged in research on the biological actions of hormones and to anticipate relevance for their findings in clinical applications. The first volume of the series was dedicated to the discussion and understanding of molecular mechanisms by which steroid hormones influence target cells in normal and pathological conditions. With the diversity of information and the vast amount of literature on steroid hormone physiology, a more thorough treatment of Hormones and Cancer was identified as a timely topic. In this second volume in the series, Dr. Wayne V. Vedeckis has success fully undertaken the monumental task of editing the findings of the leading investigators in hormone and cancer research. Dr. Vedeckis brings to this project two decades of research experience in hormone action; he is actively engaged in elucidating hormone and cancer interrelations. It is a pleasure to welcome him to the series as an editor and congratulate him and all contribu tors in presenting this comprehensive treatise. The 20 chapters include discussions on contemporary topics relating control of cell division and signal transduction to the basic mechanisms of carcinogenesis by cloning patient genes, and recognizing the importance of steroid receptors in treatment protocols of various endocrine abnormalities.

The papers in this volume were presented at the Symposium on Hormones and Cancer held March 24-26, 1980, at the Worcester Foundation for Experimental Biology, Shrewsbury, MA. The meeting was organized to review recent advances in basic and clinical research work on hormone-responsive tumors of the reproductive system. The association between protracted hormone action and cancer of the reproductive system is now irrefutable. Yet we still do not know how hormones initiate and promote neoplastic transformation of their target cells. A major effort is cur rently being directed at understanding the hormonal regulation of neoplastic cells, especially those arising from the breast, uterus, pituitary gland and prostate. The symposium brought together leading experts whose research is focused on this impor tant area of human health. Although many questions remain to be answered by future studies, the material covered in this volume provides an up-to-date overview of the current status of work in this area. The subjects range from the mechanism of hormone action to the treatment of hormone-dependent tumors, and topics include estrogen, progestin, androgen and glucocorticoid action~ hormone receptors~ specific protein responses~ developmental effects of estrogens and antiestrogens~ the DES syndrome~ regu lation of the cell cycle~ therapeutic effects of antiestrogens, aromatase inhibitors, iodoestrogens, progestins on estrogen dependent tumors~ characterization of retinoid-binding sites~ and the utility of various tumor markers.

Hormones and Vitamins in Cancer Treatment is intended to serve as a therapeuticial guide for physicians using non-aggressive methods, such as hormonotherapy and vitamin therapy, when treating cancer patients. This book provides the rationale and scientific basis for hormones and vitamins, which play an important role in cancer management, and emphasizes the significance of hormones and vitamins in chemoprevention and chemoprophylaxis of cancer. Topics discussed in this book include the criteria for selecting patients for hormonotherapy and vitamin therapy; the favorable effects and advantages of hormonotherapy and vitamin therapy over (or used as adjuvant therapeutic agents) more aggressive methods, such as chemotherapy, radiation therapy, immunotherapy or surgery; and hormone-like substances, such as growth factors, interferons, interleukins, and prostoglandins. Also included is the newest information regarding the role of diet in cancer prevention. This book is packed with valuable information for researchers, physicians, and students of endrocrinology and clinical oncology. It is also the only book of its kind that discusses the role of hormones, hormone-like substances, and vitamins in cancer prevention and treatment.

The clinical benefits of hormone replacement therapy in women have to be carefully balanced against the possible risks, and a particular theoretical concern relates to risks associated with various forms of female oncology. Because of conflicting reports, gynecologists and oncologists especially need a single, authoritative resource of up-to-date information. Hormone Replacement Therapy and Cancer, published in association with the International Menopause Society, provides the very consensus statement that clinicians need in this difficult and complex area. Many of the world's leading specialists have contributed important chapters that provide state-of-the-art knowledge about the effects of hormones on women and possible cancer risks. The introductory section deals with carcinogenesis, and the other main sections cover HRT and breast cancer, endometrial cancer, colon cancer, melanoma and epithelial ovarian cancer. The concluding chapters discuss the benefits and risks of sp ecific therapies. An authoritative clinical reference with extensive bibliographic references and index, Hormone Replacement Therapy and Cancer covers all aspects of HRT and cancer based on the research available up to June 2001.

Testicular cancer (TC) is the most common cancer in males aged 20-40 years, with a worldwide incidence of 7.5 per 100,000, but the rates vary considerably between countries and ethnic groups and there is evidence also for an increasing incidence in last decades. About 95% of all TCs are represented by testicular germ cell tumors (TGCTs), which include seminoma and non-seminoma histological types. It is generally assumed that the development of TGCT is under endocrine control. In particular, unbalanced androgen/estrogen levels and/or activity are believed to represent the key events for TGCT development and progression. Furthermore, recent evidence has suggested genetic association of TGCT with variations in genes involved in hypothalamic-pituitary-testicular axis and steroidogenic enzymes. This recent evidence expands the current knowledge on the role of genetic contribution in testicular cancer susceptibility, and supports the hypothesis that variations in hormone metabolism genes might change the hormonal environment implicated in testicular carcinogenesis. Therefore, hormonal carcinogenesis is an important and controversial area of current research in TGCT, and further attention is given to genetic factors influencing hormone-related cancer risk. The genetic component to TGCT is in general strong. In fact, although environmental factors clearly contribute to TGCT development (and probably to its increasing incidence in some geographical areas), the proportion of TGCT susceptibility accounted for by the genetic effects is estimated at 25%. TGCT has high familial risks compared with most other cancer types that are generally no more than two-fold: brothers of individuals with TGCT have an 8- to 12-fold increased risk of disease, and sons of affected individuals have a 4- to 6-fold increased risk. Despite this strong familial relative risk, early results from linkage studies identified a limited relationship with genetic factors, suggesting that TGCT is a genetically complex trait. However, more recently, four genome-wide association studies (GWAS) from the UK and USA have reported association of TGCTs with six new loci (KITLG, SPRY4, BAK1, DMRT1, TERT, and ATF7IP). The strongest association for TGCT susceptibility was found for SNPs in KITLG (ligand for the membrane-bound receptor tyrosine kinase KIT) gene with a greater than 2.5-fold increased risk of disease per major allele, which is the highest reported for any cancer to date. These studies are being now replicated by other researches and attention is given to the relationship between these genetic variations, TGCT risk and frequently associated anomalies of the reproductive tract, such as cryptorchidism and infertility. Finally, over the past few decades, TCGT research has focused also on external environmental causes acting mainly as endocrine disrupters of androgen and oestrogen pathways, even during the foetal development of the testis. It is well known that the testicular dysgenesis syndrome (TDS) hypothesis, proposed ten years ago, suggests that disturbed testicular development in fetal life may result in one or more of four disorders postnatally, named cryptorchidism, hypospadias, poor semen quality, and TGCT. These four disorders are therefore considered as one clinical entity and are linked together by epidemiological and pathophysiological relations. The relative contribution of genetics and environment in TGCT development, and the interactions between endocrine disruptors and variations in genes involved in hormonal carcinogenesis is therefore another interesting area of research.

This issue of Endocrinology Clinics brings the reader up to date on the latest information about hormones and cancer of the breast and prostate. The first section focuses on the breast, and topics covered include the following. The role of sex steroids and their receptors in normal breast development; estrogen carcinogenesis in breast cancer; hormonal mechanisms underlying the relationship between obesity and breast cancer; postmenopausal hormone replacement therapy and the risk of breast cancer; aromatase inhibitors, anti-estrogen and SERMS in the treatment of breast cancer; and androgens in breast cancer in men and women. The second section is devoted to the prostate, and topics covered include the following. Overview of prostate anatomy, histology, and pathology; the critical role of sex steroids in normal prostate development; estrogens and androgens in prostate cancer development and the rationale for hormonal chemopreventive therapies; weighing the clinical evidence regarding the timing and extent of androgen ablative therapy for prostate cancer treatment; new hormonal therapies for castration-resistant prostate cancer; and the management of the side effects of castration therapy.

This volume, Biological and Hormonal Therapies of Cancer, which is part of the series Cancer Treatment and Research, presents selected new information concerning biologic and hormonal therapy of cancer. We have attempted to provide the reader with topics of major interest in a timely fashion. There is renewed interest in biologic therapy of cancer. Two chapters review the role of interferon in the hematologic malignancies and in solid tumors. Vaccine therapies have come to the forefront of cancer therapy re cently, and two chapters approach different strategies of vaccine therapies; one reviews the cellular vaccine therapies and another the anti-idiotype ap proach. The hormonal therapy chapters focus on current uses of endocrine therapy in endometrial, breast, and prostate cancer. In addition, hormonal strategies for the prevention of breast cancer and endometrial cancer, including excit ing information relating to phytochemicals, are presented. The effects of tamoxifen on endometrium is a topic of major interest and is discussed in detail. Finally, there is a chapter on estrogen receptor expression and regula tion in human breast cancer. These chapters are all written by experts in the field and contain timely and relevant information of interest to laboratory and clinical scientists and practitioners alike. Biologic and endocrine therapies represent major areas of cancer research interest. The advent of newer biologic therapies, including new antibody targeted treatments, and the use of biologics as tumor modulators to enhance the effects of other treatment regimens is an exploding avenue of research.