Related topics: cancer · cancer cells · chemotherapy · patients · smokers

S.African green groups sue government over air pollution

Two South African environmental groups are suing the government over air pollution in the northeastern province of Mpumalanga, where 83 percent of the country's coal is mined, their lawyer said Monday.

Is traffic-related air pollution killing us?

It's summer getaway season. According to AAA, two-thirds of American families are taking a summer vacation this year, and more than half of us are planning a road trip.

Worsening air pollution reducing lifespans in Indonesia

Indonesia's air quality has deteriorated from among the cleanest in the world to one of the most polluted over the past two decades, shaving five years from life expectancy in some regions, researchers say.

Nanoparticles improve tumor treatment in mice

In the treatment of cancer, chemotherapy is a cleaver, not a scalpel. By attacking rapidly dividing cells, chemotherapy effectively fights tumors, but it also ravages healthy cells in the gut, bone marrow, the scalp and other ...

Origami inspires new tech for tissue regeneration

Origami—the Japanese art of folding paper into shapes and figures—dates back to the sixth century. At UMass Lowell, it is inspiring researchers as they develop a 21st century solution to the shortage of tissue and organ ...

Nanoparticles for lung cancer pass next test

The most common type of lung cancer, non-small cell lung cancer (NSCLC), continues to be difficult to treat, with five year survival rates of about 36 percent for stage 3A tumors. Jefferson College of Pharmacy researchers ...

Versatile sensor against tumor initiating cells

Most cancer deaths are caused by recurrent or metastatic tumors. Conventional therapies target rapidly dividing tumor cells, but are unable to eradicate the highly chemoresistant tumor initiating cells (TICs), ultimately ...

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Lung cancer

Lung cancer is a disease of uncontrolled cell growth in tissues of the lung. This growth may lead to metastasis, which is the invasion of adjacent tissue and infiltration beyond the lungs. The vast majority of primary lung cancers are carcinomas of the lung, derived from epithelial cells. Lung cancer, the most common cause of cancer-related death in men and the second most common in women (after breast cancer), is responsible for 1.3 million deaths worldwide annually. The most common symptoms are shortness of breath, coughing (including coughing up blood), and weight loss.

The main types of lung cancer are small cell lung carcinoma and non-small cell lung carcinoma. This distinction is important, because the treatment varies; non-small cell lung carcinoma (NSCLC) is sometimes treated with surgery, while small cell lung carcinoma (SCLC) usually responds better to chemotherapy and radiation. The most common cause of lung cancer is long-term exposure to tobacco smoke. The occurrence of lung cancer in nonsmokers, who account for as many as 15% of cases , is often attributed to a combination of genetic factors, radon gas, asbestos, and air pollution, including secondhand smoke.

Lung cancer may be seen on chest radiograph and computed tomography (CT scan). The diagnosis is confirmed with a biopsy. This is usually performed via bronchoscopy or CT-guided biopsy. Treatment and prognosis depend upon the histological type of cancer, the stage (degree of spread), and the patient's performance status. Possible treatments include surgery, chemotherapy, and radiotherapy. With treatment, the five-year survival rate is 14%.

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