Chronic Lymphocytic Leukemia

ASCO names Cancer Advance of the Year

The American Society of Clinical Oncology (ASCO) for the first time announced its cancer Advance of the Year: the transformation of treatment for the most common form of adult leukemia. Until now, many patients with chronic ...

Jan 20, 2015
popularity 38 comments 0

Why CLL there are often relapses after treatment

Chronic lymphocytic leukemia (CLL) is among the most frequent leukemias affecting adults in Western countries. It usually occurs in older patients, does not cause any symptoms for a long time and is often only discovered ...

Dec 05, 2014
popularity 0 comments 0

B-cell chronic lymphocytic leukemia (B-CLL), also known as chronic lymphoid leukemia (CLL), is the most common type of leukemia. Leukemias are cancers of the white blood cells (leukocytes). CLL affects B cell lymphocytes. B cells originate in the bone marrow, develop in the lymph nodes, and normally fight infection by producing antibodies. In CLL, the DNA of a B cell is damaged, so that it cannot produce antibodies.[citation needed] Additionally, B cells grow out of control and accumulate in the bone marrow and blood, where they crowd out healthy blood cells. CLL is a stage of small lymphocytic lymphoma (SLL), a type of B-cell lymphoma, which presents primarily in the lymph nodes. CLL and SLL are considered the same underlying disease, just with different appearances.

CLL is a disease of adults, but, in rare cases, it can occur in teenagers and occasionally in children (inherited). Most (>75%) people newly diagnosed with CLL are over the age of 50, and the majority are men.

Most people are diagnosed without symptoms as the result of a routine blood test that returns a high white blood cell count, but, as it advances, CLL results in swollen lymph nodes, spleen, and liver, and eventually anemia and infections. Early CLL is not treated, and late CLL is treated with chemotherapy and monoclonal antibodies.

DNA analysis has distinguished two major types of CLL, with different survival times. CLL that is positive for the marker ZAP-70 has an average survival of 5 years. CLL that is negative for ZAP-70 has an average survival of more than 25 years. Many patients, especially older ones, with slowly progressing disease can be reassured and may not need any treatment in their lifetimes.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

New function of obesity gene revealed

Scientists have discovered a previously unknown mechanism behind how the fat mass and obesity associated (FTO) gene promotes obesity. Their findings may have important implications for future therapeutic ...

Tumors prefer the easy way out

Tumor cells become lethal when they spread. Blocking this process can be a powerful way to stop cancer. Historically, scientists thought that tumor cells migrated by brute force, actively pushing through whatever ...