Real-Time Transferrin-Based PET Detects MYC-Positive Prostate Cancer

Noninvasive biomarkers that detect the activity of important oncogenic drivers could significantly improve cancer diagnosis and management of treatment. The goal of this study was to determine whether 68Ga-citrate (which avidly binds to circulating transferrin) can detect MYC-positive prostate cancer tumors, as the transferrin receptor is a direct MYC target gene. PET imaging paired with 68Ga-citrate and molecular analysis of preclinical models, human cell-free DNA (cfDNA), and clinical biopsies were conducted to determine whether 68Ga-citrate can detect MYC-positive prostate cancer. Importantly, 68Ga-citrate detected human prostate cancer models in a MYC-dependent fashion. In patients with castration-resistant prostate cancer, analysis of cfDNA revealed that all patients with 68Ga-citrate avid tumors had a gain of at least one MYC copy number. Moreover, biopsy of two PET avid metastases showed molecular or histologic features characteristic of MYC hyperactivity. These data demonstrate that 68Ga-citrate targets prostate cancer tumors with MYC hyperactivity. A larger prospective study is ongoing to demonstrate the specificity of 68Ga-citrate for tumors with hyperactive MYC. Implications: Noninvasive measurement of MYC activity with quantitative imaging modalities could substantially increase our understanding of the role of MYC signaling in clinical settings for which invasive techniques are challenging to implement or do not characterize the biology of all tumors in a patient...
Source: Molecular Cancer Research - Category: Cancer & Oncology Authors: Tags: Metabolism Source Type: research

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We present a case where nocardial abscesses of lung and brain were initially suspected as lung cancer with brain metastases. The patient was treated with a combination of surgical resection and antimicrobial therapy with good outcome. PMID: 31969769 [PubMed - in process]
Source: Acta Clinica Croatica - Category: General Medicine Tags: Acta Clin Croat Source Type: research
MEAN PLATELET VOLUME: AN OVERLOOKED HERALD OF MALIGNANT THYROID NODULES. Acta Clin Croat. 2019 Sep;58(3):417-420 Authors: Sit M, Aktas G, Ozer B, Kocak MZ, Erkus E, Erkol H, Yaman S, Savli H Abstract Physicians and surgeons pay much attention to evaluating thyroid nodules due to the malignant potential of these growths. Inflammation has a crucial role in the development of cancer. Increase in the mean platelet volume (MPV) has been described in various inflammatory conditions. Since some of thyroid nodules are malignant, we aimed to compare MPV values between patients with malignant and benign thyroid ...
Source: Acta Clinica Croatica - Category: General Medicine Tags: Acta Clin Croat Source Type: research
Publication date: Available online 23 January 2020Source: LWTAuthor(s): Xin-Yun Wang, Jing XieAbstractAcinetobacter johnsonii and Pseudomonas fluorescens are specific spoilage microorganisms (SSO) of aquatic products, and their metabolites are effective indicators for analyzing these two SSOs. However, the metabolome of a coculture of A. johnsonii and P. fluorescens is still unclear. The aim of this study was to investigate the metabolomic changes in A. johnsonii, P. fluorescens, and their co-culture by screening for metabolic markers. PCA and PLS-DA revealed that A, P, and AP groups were different from each other, indicat...
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
Authors: Childress A, Hoo-Cardiel A, Lang P Abstract Introduction: Attention-deficit/hyperactivity disorder (ADHD) commonly occurs in children, adolescents, and adults. Although symptoms of ADHD often respond robustly to treatment with stimulants (amphetamine or methylphenidate), not all patients are appropriate candidates for treatment with these drugs. Guanfacine extended-release (GXR) is a non-stimulant alternative drug approved for the treatment of ADHD in the United States (U.S.), Canada, and Europe.Areas covered: The chemistry, pharmacokinetics, mechanism of action and dosage of GXR are presented. Efficacy an...
Source: Expert Opinion on Pharmacotherapy - Category: Drugs & Pharmacology Tags: Expert Opin Pharmacother Source Type: research
The androgen receptor (AR) is a driver of cellular differentiation and prostate cancer development. An extensive body of work has linked these normal and aberrant cellular processes to mRNA transcription; however, the extent to which AR regulates posttranscriptional gene regulation remains unknown. Here, we demonstrate that AR uses the translation machinery to shape the cellular proteome. We show that AR is a negative regulator of protein synthesis and identify an unexpected relationship between AR and the process of translation initiation in vivo. This is mediated through direct transcriptional control of the translation ...
Source: Science Translational Medicine - Category: Biomedical Science Authors: Tags: Research Articles Source Type: research
Abstract Mood disorders comprise major depressive disorder (MDD), bipolar disorder (BD) and the milder forms of these two disorders. Reccurring MDD is also known as unipolar disorder. The distinction between unipolar and bipolar disorders was first suggested in 1957 by Leonard and was made official after support by several studies in 1980. Indeed, in 150 AD, Aretaeus of Cappadocia wrote "It seems to me that melancholia is the beginning and a part of mania". Additionally, Kraepelin, who proposed the first medical disease model in psychiatry a century ago, considered recurrent unipolar depression cases und...
Source: Clin Med Res - Category: Research Authors: Tags: J Clin Med Res Source Type: research
Cyclin-dependent kinase 9 (CDK9) is a key transcriptional regulator and a lucrative target for cancer treatment. Targeting CDK9 can effectively confine the hyperactivity of androgen receptor and the constitutive expression of anti-apoptotic proteins; both being main causes of prostate cancer (PCa) development and progression. In castrate-resistant PCa, traditional therapies that only target androgen receptor (AR) have become obsolete due to reprograming in AR activity to make the cells independent of androgen. CDK9 inhibitors may provide a new and better therapeutic opportunity over traditional treatment options by targeti...
Source: Endocrine-Related Cancer - Category: Endocrinology Authors: Tags: Thematic Review Source Type: research
Regular medicine is awakening to the dumbfounding reality that clinical care accounts for just 10%-20% of the factors contributing to health. But if research recently presented by a leader in the revitalization of the naturopathic medical profession - and of the movements for functional and integrative medicine - is correct, even the most aggressive adopters of the new thinking are still missing the boat. The new thinking argues that if we want to create health, we need to address things like poverty, education, genetics and healthy behaviors. The figure describes these. Yet according to best-selling author and resear...
Source: Healthy Living - The Huffington Post - Category: Consumer Health News Source Type: news
New research indicates a potential therapeutic target for castration-resistant prostate cancer: ROR, which is abundant in the disease, can drive androgen receptor hyperactivity. Blocking ROR with small-molecule antagonists suppresses AR and impedes tumor growth in mice bearing human prostate tumors, including a model resistant to the antiandrogen enzalutamide.
Source: Cancer Discovery - Category: Cancer & Oncology Tags: News in Brief Source Type: research
Conclusion This modelling study used a large US medical centre database to explore the relationship between month of birth and lifetime disease risk. The study found a number of associations between birth month and risk of disease, some of which had been previously reported in the literature, as well as other new associations. While these findings are of interest, this study can only demonstrate observations and associations. The study does not provide proof that being born in any particular month is the direct cause of any future disease development. There may be many unmeasured factors behind any associations between d...
Source: NHS News Feed - Category: Consumer Health News Tags: Lifestyle/exercise Medical practice Source Type: news
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