Cílem imunoterapie je využití imunitních mechanizmů k eliminaci nebo ke kontrole růstu maligně transformovaných buněk. Jednou z možností imunoterapie je aplikace adoptivního transferu lymfocytů T, jehož podstatou je infuze ex vivo expandovaných tumor specifických lymfocytů, které rozeznávají a ničí neoplastické buňky. Úspěšnost adoptivní T buněčné terapie se významně zlepšila pochopením základních molekulárních mechanizmů interakce imunitního systému s nádory. Slibných výsledků bylo dosaženo zejména u maligního melanomu, karcinomu ledviny a lymfatické leukemie. Adoptivní T buněčná terapie se postupně etabluje mezi nadějné imunoterapeutické postupy a rozšiřuje tak portfolio léčebných možností, i když pro svoji metodickou náročnost nenašla dosud velké rozšíření., The aim of current immunotherapeutic approaches is to harness the individual’s immune system towards a tumor tissue to eliminate or, at least, to control proliferation of the neoplastic cells. Among the cancer treatment strategies, the adoptive T cell transfer is progressively developing method that uses an ex vivo modified and expanded tumor-specific T cells as a tool to target and destroy the neoplastic tumor cells. The efficacy of the adoptive T cell therapy has significantly improved in recent years due to a better understanding of the molecular mechanisms that control the interactions of immune system and tumor cells. Promising results have already been achieved within the clinical trials in malignant melanoma, renal cancer and lymphoid leukemia. The adoptive T cell therapy is therefore gradually finding its place among the other immunotherapeutic strategies and expands the spectrum of available treatment options in cancer therapy., Kateřina Vávrová, Jiřina Bartůňková, Rudolf Horváth, and Literatura
Nedostatečnost kůry nadledvin je potenciálně život ohrožující stav. Článek pojednává o diferenciální diagnostice a limitech dynamického testování, možnostech deeskalace kortikoidní terapie a substituční terapii glukokortikoidy, mineralokortikoidy a androgeny. Zmíněny jsou nové substituční možnosti včetně nově vyvíjených., Adrenal insufficiency is a potentially life threatening condition. The paper deals with differential diagnostics and limits of dynamic testing, possibilities of de-escalation of corticosteroid therapy and substitution therapy with glucocorticoids, mineralocorticoids and androgens. New replacement possibilities are mentioned including those in development., and Filip Gabalec, Jan Čáp
The method of cellular immobilization and perfusion was applied to adipocytes. The lipolytic effect of isoprénaline, whose action is produced as a result of receptor-drug interaction, was followed. An agarose solution kept at at 37 °C was mixed 1:1 with the cell suspension. Thereafter, adipocytes were immobilized in the agarose threads. The lipolytic effect of 0.1 ml of isoprénaline (1x10~4 mol/1), that was rapidly introduced to the cell perfusion inlet in a non-recirculating system, was monitored by assessing glycerol production. The immobilized and perfused adipocytes exhibited significant lipolytic activity. After reaching the maximum effect, 0.1 ml of propranol (lxl 0-3 mol/1) that was applied to the bioreactor inlet, abolished the isoprénaline effect. The present data demonstrate the potential applicability of immobilized perfused adipocytes for various kinds of studies.