Sunday, 16 December, 2018

Chemotherapy May Trigger More Aggressive Tumours

Chemotherapy May Trigger More Aggressive Tumours

Posted on Friday, 7 July, 2017Sunday, 20 August, 2017 by Zheluo Cai

Chemotherapy May Trigger More Aggressive Tumours.

Breast cancer is one of the most common tumour types, and metastasis greatly increases the risk of death from this disease. By studying the process of intravasation or entry of cells into the vasculature, Karagiannis et al. discovered that, in addition to killing tumour cells, chemotherapy treatment can also increase intravasation. Groups of cells collectively known as tumour microenvironment of metastasis (TMEM) can serve as gateways for tumour cells entering the vasculature, and the authors discovered that several types of chemotherapy can increase the amounts of TMEM complexes and circulating tumour cells in the bloodstream. The researchers also determined that a drug called rebastinib can interfere with TMEM activity and help overcome the increased risk of cancer cell dissemination. Credit: Research Article on Neoadjuvant Chemotherapy Induces Breast Cancer Metastasis Through a TMEM-Mediated Mechanism, 5 July 2017 at Science Translational Medicine.

Read Article Here:

http://www.telegraph.co.uk/science/2017/07/05/chemotherapy-may-spread-cancer-trigger-aggressive-tumours-warn/

Geminids and Friends.
Image Credit & Copyright: Daniel López (El Cielo de Canarias). From a radiant in the constellation of the Twins, the annual Geminid meteor shower rained down this week. This skyscape collects about 70 of Gemini's lovely shooting stars in a digital composition made from multiple exposures taken over a six-hour period near the shower's peak on December 14 from Teide National Park on the Canary Island Tenerife. Though Gemini lies off the top left of the frame, the Milky Way sweeps through the starry background. Sharing the sky below and left of center are recognizable stars and nebulosities of Orion. A yellowish Aldebaran and the Hyades are toward the right along with the Pleiades star cluster. The faint green coma of Comet 46P Wirtanen, closest to Earth this weekend, lies below the Pleiades stars. Dust swept up from the orbit of active asteroid 3200 Phaethon, Gemini's meteors enter Earth's atmosphere traveling at about 35 kilometers per second.

Sunflowers (Tournesols) is the name of two series of still life paintings by the Dutch painter Vincent van Gogh. The first series, executed in Paris in 1887, depicts the flowers lying on the ground, while the second set, executed a year later in Arles, shows a bouquet of sunflowers in a vase. In the artist's mind, both sets were linked by the name of his friend Paul Gauguin, who acquired two of the Paris versions. On March 30, 1987, Japanese insurance magnate, Yasuo Goto, paid the equivalent of US $39,921,750 for van Gogh's Still Life: Vase with Fifteen Sunflowers at auction at Christie's London. The painting currently resides at Seiji Togo Yasuda Memorial Museum of Modern Art in Tokyo.

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