Влияние Кортизола в комплексе с липопротеинами очень низкой плотности на развитие гепатомы на-1 и карциномы Эрлиха

Studies were conducted using ascetic HA-1 hepatomas and ascitic Ehrlich’s carcinoma cells. After passage of cells in mice, cell culture containing tumor-associated macrophages was studied. It was shown that the very low-density lipoprotein (VLDL)-cortisol complex significantly inhibited proliferative activity of tumor cells. The obtained constant of cortisol binding to VLDL indicated that the protein component of lipoproteins participated in the complex formation. Tumor-associated macrophages were suggested to play an important role in the formation of this complex. It was found that inhibition of tumor cell growth was related to apoptosis.Исследования проводились на клетках асцитной НА-1 гепатомы и асцитной карциномы Эрлиха. После пассажа клеток на мышах выделяли смешанную культуру клеток, содержащую опухоль-ассоциированные макрофаги. Показано, что в сокультуре комплекс ЛПОНП–кортизол значительно подавлял пролиферативную активность опухолевых клеток. Полученная константа связы- вания кортизола с ЛПОНП указывает на то, что в комплексообразовании принимает участие белковый компонент липопротеинов. Предполагается, что в образовании такого комплекса важную роль играют опухоль-ассоциированные макрофаги. Обнаружено, что механизм подавления роста опухолевых клеток связан с апоптозо

INFLUENCE OF CORTISOL AND VERY LOW-DENSITY LIPOPROTEINES ON THE DEVELOPMENT OF HA-1HEPATOMA AND EHRLICH’S CARCINOMA

Studies were conducted using ascetic HA-1 hepatomas and ascitic Ehrlich’s carcinoma cells. After passage of cells in mice, cell culture containing tumor-associated macrophages was studied. It was shown that the very low-density lipoprotein (VLDL)-cortisol complex significantly inhibited proliferative activity of tumor cells. The obtained constant of cortisol binding to VLDL indicated that the protein component of lipoproteins participated in the complex formation. Tumor-associated macrophages were suggested to play an important role in the formation of this complex. It was found that inhibition of tumor cell growth was related to apoptosis