In vitro selection of murine B16 melanoma variants with enhanced tissue-invasive properties.

نویسندگان

  • G Poste
  • J Doll
  • I R Hart
  • I J Fidler
چکیده

New assay methods have been devised to quantitate tumor cell invasion of tissues of differing histological complexity maintained as organ cultures in vitro (chorioallantoic membrane of chicken, mouse urinary bladder, and canine blood vessel. In addition to quantitating tumor cell invasion, these methods also allow recovery of invasive cells for comparison with noninvasive cells. These methods have been used to select variant sublines from murine B16-F1 and B16-F10 melanoma lines that display significantly greater tissue-invasive abilities than the parent lines. B16 variant sublines selected in vitro for increased invasiveness through the bladder wall or vein also show a significant increase in their ability to form spontaneous and experimental metastases in vivo. In contrast, cells from the same parent cell line selected for increased invasiveness through the chorioallantoic membrane do not show significant alterations in metastatic behavior. We conclude that invasive variants can be isolated from the parent B16 tumor by several in vitro methods and that the level of expression of the invasive phenotype in vivo may be determined by the severity of the selection procedure in vitro.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Enhanced Tissue-invasive Properties Selection of Murine B16 Melanoma Variants with In Vitro

New assay methods have been devised to quantitate tumor cell invasion of tissues of differing histological complexity main tained as organ cultures in vitro (chorioallantoic membrane of chicken, mouse urinary bladder, and canine blood vessel). In addition to quantitating tumor cell invasion, these methods also allow recovery of invasive cells for comparison with noninvasive cells. These methods...

متن کامل

Evaluation of Antioxidant and Anti-Melanogenic Activity of Different Extracts of Aerial Parts of N. Sintenisii in Murine Melanoma B16F10 Cells

Nepeta (Lamiaceae) is an important genus with beneficial medicinal properties. N. sintenisiiBornm. has been used in folk medicine of Iran to cure various diseases. We investigated theanti-melanogenesis effects of n-hexane, MeOH, CH2Cl2, n-BuOH, EtOAc, and H2O extractsisolated from the plant in B16 melanoma cells. Various assays including cytotoxicity, mushroomtyrosinase inhibition, inhibition o...

متن کامل

Evaluation of antioxidant and anti-melanogenic activities of different extracts from aerial parts of Nepeta binaludensis Jamzad in murine melanoma B16F10 cells

Objective(s): Nepeta binaludensis Jamzad (Lamiaceae) has been used in folk medicine of Iran to cure various diseases. The plant is an endemic species to the country that has recently been identified in Razavi Khorasan province. To evaluate the antioxidant and anti-melanogenesis of N. binaludensis, in this study the inhibitory activity of different extracts of N. binaludensis in murine melanoma ...

متن کامل

Evaluation of Antioxidant and Anti-Melanogenic Activity of Different Extracts of Aerial Parts of N. Sintenisii in Murine Melanoma B16F10 Cells

Nepeta (Lamiaceae) is an important genus with beneficial medicinal properties. N. sintenisiiBornm. has been used in folk medicine of Iran to cure various diseases. We investigated theanti-melanogenesis effects of n-hexane, MeOH, CH2Cl2, n-BuOH, EtOAc, and H2O extractsisolated from the plant in B16 melanoma cells. Various assays including cytotoxicity, mushroomtyrosinase inhibition, inhibition o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Cancer research

دوره 40 5  شماره 

صفحات  -

تاریخ انتشار 1980