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Titolo:
Somatostatin analogs in oncology: A look to the future
Autore:
Jenkins, SA; Kynaston, HG; Davies, N; Baxter, JN; Nott, DM;
Indirizzi:
Morriston Hosp, Postgrad Med Sch, Acad Dept Surg, Swansea, W Glam, Wales Morriston Hosp Swansea W Glam Wales ad Dept Surg, Swansea, W Glam, Wales Univ Wales Hosp, Dept Urol, Cardiff CF14 4XW, S Glam, Wales Univ Wales Hosp Cardiff S Glam Wales CF14 4XW iff CF14 4XW, S Glam, Wales Royal Bournemouth Hosp, Dept Surg, London, England Royal Bournemouth HospLondon England Hosp, Dept Surg, London, England Chelsea & Westminster Hosp, Dept Surg, London, England Chelsea & Westminster Hosp London England p, Dept Surg, London, England
Titolo Testata:
CHEMOTHERAPY
, volume: 47, anno: 2001, supplemento:, 2
pagine: 162 - 196
SICI:
0009-3157(2001)47:<162:SAIOAL>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
METASTATIC BREAST-CANCER; COLORECTAL LIVER METASTASES; SUBTYPE GENE-EXPRESSION; EPIDERMAL GROWTH-FACTOR; PITUITARY-TUMOR CELLS; RECEPTOR SUBTYPES; NEUROENDOCRINE TUMORS; THYROID-CARCINOMA; PANCREATIC-CANCER; PARTIAL-HEPATECTOMY;
Keywords:
somatostatin analogs; neoplasms; therapy; review;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
142
Recensione:
Indirizzi per estratti:
Indirizzo: Jenkins, SA Univ Wales Hosp, Dept Gen Surg, Ward 5-A,Heath Pk, Cardiff CF14 4XW, S Glam, Wales Univ Wales Hosp Ward 5-A,Heath Pk Cardiff S Glam WalesCF14 4XW
Citazione:
S.A. Jenkins et al., "Somatostatin analogs in oncology: A look to the future", CHEMOTHERA, 47, 2001, pp. 162-196

Abstract

In the past 15 years considerable advances have been made in our understanding of the molecular pharmacology of the mechanisms whereby somatostatin and its analogs mediate their direct and indirect antineoplastic effects. However, some important issues remain to be resolved, in particular the functional roles of the individual somatostatin receptors (SSTR-1-5) in tumor tissue and up- or downregulation of the hSSTRs with prolonged administration of somatostatin analogs. Answers to these questions are essential before wecan maximize the therapeutic efficacy of somatostatin analogs in cancer. For example, is continuous administration more or less effective than intermittent therapy? The role of somatostatin analogs in the management of acromegaly and to a lesser extent neuroendocrine tumors is firmly established. The development of depot preparations of all 3 somatostatin analogs currently available for clinical use will undoubtedly improve both patient compliance and quality of life in patients with these conditions. There are only likely to be minor differences in the therapeutic efficacy of octreotide, lanreotide and vapreotide since all three analogs exert the majority of their antineoplastic effects via hSSTR-2 and hSSTR-5 and at the end of the day, price may well dictate which of these drugs oncologists use to provide symptomatic palliation of acromegaly and neuroendocrine tumors. Apart from some notable exceptions, somatostatin analog therapy has proven to be very disappointing in the management of advanced malignancy. Improvements in the management of solid tumors are likely to come only from combination therapy of somatostatin analogs with cytotoxic agents or other hormones in both advanced malignancy and in the adjuvant setting. Clinical trials with clear-cut objective outcome measures and health-related quality of life assessment areneeded to evaluate the therapeutic efficacy of combination treatment in advanced malignancy and as an adjuvant to surgery. Particular attention needsto be paid to possible adverse effects of somatostatin analog therapy on the immune response to cancer. Further studies are required to establish whether the adverse effects of somatostatin analog therapy alone or in combination with cytotoxics or other hormones can be reversed with appropriate immunomodulatory treatment. Targeted somatostatin analog radiotherapy and chemotherapy are currently being investigated and the results of these studies are awaited with interest. Novel approaches using combinations of somatostatin analogs with antiangiogenic drugs or gene therapy are of particular interest and may provide important advances in the management of cancer in thenot too distant future. Copyright (C) 2001 S. Karger AG, Basel.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 11:27:43