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Characterizing the metabolic heterogeneity in human breast cancer xenografts by 3D high resolution fluorescence imaging.

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We previously reported that tumor mitochondrial redox state and its heterogeneity distinguished between the aggressive and the indolent breast cancer xenografts, suggesting novel metabolic indices as biomarkers for predicting tumor metastatic potential. Additionally, we reported that the identified

Characterizing breast cancer mouse xenografts with T₁ρ -MRI: a preliminary study.

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Previously three imaging methods, dynamic contrast enhanced magnetic resonance imaging (DCE-MRI), T(1ρ )-MRI, and low temperature NADH/Fp (reduced nicotinamide adenine dinucleotide/oxidized flavoprotein) fluorescence imaging (redox scanning)were reported to differentiate the mouse xenografts of a

Optical redox imaging indices discriminate human breast cancer from normal tissues.

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Our long-term goal was to investigate the potential of incorporating redox imaging technique as a breast cancer (BC) diagnosis component to increase the positive predictive value of suspicious imaging finding and to reduce unnecessary biopsies and overdiagnosis. We previously found that precancer

Differential Expression of PGC1α in Intratumor Redox Subpopulations of Breast Cancer.

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Our previous studies indicate that the mitochondrial redox state and its intratumor heterogeneity are associated with invasiveness and metastatic potential in human breast cancer cell models and mouse xenografts. To further study the molecular basis of redox heterogeneity, we obtained the

Redox imaging of human breast cancer core biopsies: a preliminary investigation.

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OBJECTIVE The clinical gold standard for breast cancer diagnosis relies on invasive biopsies followed by tissue fixation for subsequent histopathological examination. This process renders the specimens to be much less suitable for biochemical or metabolic analysis. Our previous metabolic imaging

MICAL1 controls cell invasive phenotype via regulating oxidative stress in breast cancer cells.

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Molecules Interacting with CasL (MICAL1), a multidomain flavoprotein monoxygenase, is strongly involved in the mechanisms that promote cancer cell proliferation and survival. Activation of MICAL1 causes an up-regulation of reactive oxygen species (ROS) in HeLa cells. ROS can function as a signaling

Comparison of multiexcitation fluorescence and diffuse reflectance spectroscopy for the diagnosis of breast cancer (March 2003).

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Nonmalignant (n = 36) and malignant (n = 20) tissue samples were obtained from breast cancer and breast reduction surgeries. These tissues were characterized using multiple excitation wavelength fluorescence spectroscopy and diffuse reflectance spectroscopy in the ultraviolet-visible wavelength

Imaging the redox states of human breast cancer core biopsies.

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Currently, the gold standard to establish benign vs. malignant breast tissue diagnosis requires an invasive biopsy followed by tissue fixation for subsequent histopathological examination. This process takes at least 24 h resulting in tissues that are less suitable for molecular, functional, or

Quantitative mitochondrial redox imaging of breast cancer metastatic potential.

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Predicting tumor metastatic potential remains a challenge in cancer research and clinical practice. Our goal was to identify novel biomarkers for differentiating human breast tumors with different metastatic potentials by imaging the in vivo mitochondrial redox states of tumor tissues. The more

Identification of 14-3-3sigma as a contributor to drug resistance in human breast cancer cells using functional proteomic analysis.

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Multidrug resistance (MDR) is a major obstacle to successful cancer treatment. To understand the mechanism of MDR, many cancer cell lines have been established, and various mechanisms of resistance, such as ATP-binding cassette (ABC) transporter-mediated drug efflux, have been discovered.

Optical Redox Imaging Detects the Effects of DEK Oncogene Knockdown on the Redox State of MDA-MB-231 Breast Cancer Cells.

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Optical redox imaging (ORI), based on collecting the endogenous fluorescence of reduced nicotinamide adenine dinucleotide (NADH) and oxidized flavoproteins (Fp) containing a redox cofactor flavin adenine dinucleotide (FAD), provides sensitive indicators of cellular metabolism and redox

The proteomic analysis of cisplatin resistance in breast cancer cells.

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Resistance to cisplatin represents a major obstacle in the effective management of many cancers, including metastatic breast cancer. We aimed to gain further understanding of the mechanisms underlying development of cisplatin resistance using an in vitro cell line model. The MCF-7 breast cancer cell

MICAL1 facilitates breast cancer cell proliferation via ROS-sensitive ERK/cyclin D pathway.

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Molecule interacting with CasL 1 (MICAL1) is a multidomain flavoprotein mono-oxygenase that strongly involves in cytoskeleton dynamics and cell oxidoreduction metabolism. Recently, results from our laboratory have shown that MICAL1 modulates reactive oxygen species (ROS) production, and the latter

Induction of superoxide dismutase and cytotoxicity by manganese in human breast cancer cells.

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MnCl2 induced manganese-containing superoxide dismutase (MnSOD) expression (mRNA, immunoreactive protein, and enzyme activity) in human breast cancer Hs578T cells. The induction of MnSOD immunoreactive protein in Hs578T cells was inhibited by tiron (a metal chelator and superoxide scavenger),

Breast cancer and expression of aromatase in breast adipose tissue.

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Extraglandular conversion of C19 steroids to estrogens takes place primarily in the stromal cell component of adipose tissue and is catalyzed by an enzyme complex comprising aromatase cytochrome P450 (P450arom; the product of the CYP19 gene) together with the flavoprotein NADPH-cytochrome P450

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