Silencing of Irf7 pathways in breast cancer cells promotes bone metastasis through immune escape

BN Bidwell, CY Slaney, NP Withana, S Forster, Y Cao… - Nature medicine, 2012 - nature.com
Breast cancer metastasis is a key determinant of long-term patient survival. By comparing
the transcriptomes of primary and metastatic tumor cells in a mouse model of spontaneous …

Cathepsin B inhibition limits bone metastasis in breast cancer

NP Withana, G Blum, M Sameni, C Slaney… - Cancer research, 2012 - AACR
Metastasis to bone is a major cause of morbidity in breast cancer patients, emphasizing the
importance of identifying molecular drivers of bone metastasis for new therapeutic targets. …

Improved quenched fluorescent probe for imaging of cysteine cathepsin activity

…, WA van der Linden, S Syed, NP Withana… - Journal of the …, 2013 - ACS Publications
The cysteine cathepsins are a family of proteases that play important roles in both normal
cellular physiology and many human diseases. In cancer, the activity of many of the cysteine …

Functional imaging of legumain in cancer using a new quenched activity-based probe

…, M Verdoes, A Ortega, NP Withana… - Journal of the …, 2013 - ACS Publications
Legumain is a lysosomal cysteine protease whose biological function remains poorly defined.
Legumain activity is up-regulated in most human cancers and inflammatory diseases most …

Design of protease activated optical contrast agents that exploit a latent lysosomotropic effect for use in fluorescence-guided surgery

LO Ofori, NP Withana, TR Prestwood… - ACS chemical …, 2015 - ACS Publications
There is a need for new molecular-guided contrast agents to enhance surgical procedures
such as tumor resection that require a high degree of precision. Cysteine cathepsins are …

[HTML][HTML] Non-invasive imaging of idiopathic pulmonary fibrosis using cathepsin protease probes

NP Withana, X Ma, HM McGuire, M Verdoes… - Scientific reports, 2016 - nature.com
Idiopathic pulmonary fibrosis (IPF) is a lethal, chronic, progressive disease characterized by
formation of scar tissue within the lungs. Because it is a disease of unknown etiology, it is …

Labeling of active proteases in fresh-frozen tissues by topical application of quenched activity-based probes

NP Withana, M Garland, M Verdoes, LO Ofori… - Nature protocols, 2016 - nature.com
Active enzymes, such as proteases, often serve as valuable biomarkers for various disease
pathologies. Therefore, methods to detect specific enzyme activities in biological samples …

Dual-modality activity-based probes as molecular imaging agents for vascular inflammation

NP Withana, T Saito, X Ma, M Garland… - Journal of Nuclear …, 2016 - Soc Nuclear Med
Macrophages are cellular mediators of vascular inflammation and are involved in the
formation of atherosclerotic plaques. These immune cells secrete proteases such as matrix …

Legumain is activated in macrophages during pancreatitis

…, WA Van Der Linden, NP Withana… - American Journal …, 2016 - journals.physiology.org
Pancreatitis is an inflammatory disease of the pancreas characterized by dysregulated
activity of digestive enzymes, necrosis, immune infiltration, and pain. Repeated incidence of …

Telomere length in lymphoblast cell lines derived from clinically radiosensitive cancer patients

CN Sprung, DSP Davey, NP Withana… - Cancer Biology & …, 2008 - Taylor & Francis
Approximately 1-5 percent of cancer patients suffer from significant side effects in normal
tissue after radiotherapy (RT). Although RT is an effective cancer therapy, treatment dose …