Bae Keun Park

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Advanced breast cancers frequently metastasize to bone, resulting in osteolytic lesions, yet the underlying mechanisms are poorly understood. Here we report that nuclear factor-kappaB (NF-kappaB) plays a crucial role in the osteolytic bone metastasis of breast cancer by stimulating osteoclastogenesis. Using an in vivo bone metastasis model, we found that(More)
Cisplatin is one of the most common DNA-damaging agents used for treating patients with solid tumors such as squamous cell carcinoma (SCC). Unfortunately, significant levels of resistance in SCC cells emerge rapidly following cisplatin treatment. Here we report that the proteasome inhibitor PS-341, the representative of a new class of chemotherapeutic(More)
BACKGROUND B1 B cells are believed to be a unique lineage with a distinct developmental pathway, function and activation requirement. How this lineage is genetically determined remained largely obscure. METHODS AND PRINCIPAL FINDINGS Using the Siglecg-deficient mice with a knockin of green-fluorescent protein encoding sequence, we show here that, although(More)
Mitochondria undergo at least two types of structural alteration in response to various physiological and pathophysiological stimuli. One type is nonreversible and is associated with mitochondrial lysis. The second is reversible and appears to be associated with calcium-mediated activation of a specific inner mitochondrial membrane channel. The mechanisms(More)
The intracellular actin cytoskeleton is a central player in tumor cell migration and adhesion, and interacts with the extracellular matrix during the progression to metastasis. Although recent reports on motility events have revealed that the destabilization of actin affects cancer progression and hypoxia inducible factor-1α (HIF-1α) activity, little is(More)
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