Cancers, Vol. 11, Pages 1018: Targeted Radionuclide Therapy for Patients with Metastatic Pheochromocytoma and Paraganglioma: From Low-Specific-Activity to High-Specific-Activity Iodine-131 Metaiodobenzylguanidine

Cancers, Vol. 11, Pages 1018: Targeted Radionuclide Therapy for Patients with Metastatic Pheochromocytoma and Paraganglioma: From Low-Specific-Activity to High-Specific-Activity Iodine-131 Metaiodobenzylguanidine Cancers doi: 10.3390/cancers11071018 Authors: Camilo Jimenez William Erwin Beth Chasen Low-specific-activity iodine-131–radiolabeled metaiodobenzylguanidine (I-131-MIBG) was introduced last century as a potential systemic therapy for patients with malignant pheochromocytomas and paragangliomas. Collective information derived from mainly retrospective studies has suggested that 30–40% of patients with these tumors benefit from this treatment. A low index of radioactivity, lack of therapeutic standardization, and toxicity associated with intermediate to high activities (absorbed radiation doses) has prevented the implementation of I-131-MIBG’s in clinical practice. High-specific-activity, carrier-free I-131-MIBG has been developed over the past two decades as a novel therapy for patients with metastatic pheochromocytomas and paragangliomas that express the norepinephrine transporter. This drug allows for a high level of radioactivity, and as yet is not associated with cardiovascular toxicity. In a pivotal phase two clinical trial, more than 90% of patients achieved partial responses and disease stabilization with the improvement of hypertension. Furthermore, many patients exhibited long-term persistent antineoplastic effects. Currently, th...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research

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ConclusionElevated AURKB expression was strongly correlated to TMZ resistant acquisition and poor prognosis, furthermore, targeting AURKB would be a potential therapeutic target for GBM patients.
Source: Pathology Research and Practice - Category: Pathology Source Type: research
Purpose: To compare retinal thickness between patients with chronic hypertension without retinopathy, hypertensive retinopathy, Keith–Wagener–Barker Grade IV status, and normal controls using spectral domain optical coherence tomography. Methods: In this retrospective study, we analyzed patients who visited our retinal clinic from January 2013 to February 2016. Of those included, 58 eyes of 58 patients were in the healthy control group (Group A), 37 eyes of 37 patients were in the chronic hypertension without retinopathy group (disease duration of at least 10 years; Group B), and 31 eyes of 31 patients wit...
Source: RETINA - Category: Opthalmology Tags: Original Study Source Type: research
The objective of this article is to document whether DIRT can accurately map the position of the perforators and measure their influence on the perfusion of the flap in order to select the best perforators to improve the outcome of breast reconstructions with free DIEP flaps. A systematic review of the literature published between January 1998 and November 23th 2018 was conducted regarding the possible benefit of dynamic infrared thermography (DIRT) in DIEP-flap breast reconstructions.The databases PubMed and Web of Science were used to search for qualified articles. Inclusion criteria were women who underwent a breast rec...
Source: European Journal of Obstetrics and Gynecology and Reproductive Biology - Category: OBGYN Source Type: research
Publication date: Available online 23 August 2019Source: European Journal of Obstetrics &Gynecology and Reproductive BiologyAuthor(s): Susie Brousse, Marine Joste, Franck Marie Leclère, Vincent Lavoué, Nicolas Bertheuil
Source: European Journal of Obstetrics and Gynecology and Reproductive Biology - Category: OBGYN Source Type: research
ConclusionOur results support the hypothesis that the process of atherosclerotic plaque calcification presents a number of similarities with the physiological processes that occur in bone, involving both osteoblasts- and osteoclasts-like arterial cells. Finally, the present study suggests that risk factors, such as hypertension, cigarette smoke and diabetes, can cause the destabilization of the atheromatic plaque acting on calcification process as well as inflammation.
Source: Nutrition, Metabolism and Cardiovascular Diseases - Category: Nutrition Source Type: research
Karel Pacak Pheochromocytomas and paragangliomas (PPGLs) are rare catecholamine-secreting neuroendocrine tumors of the adrenal medulla and sympathetic/parasympathetic ganglion cells, respectively. Excessive release of catecholamines leads to episodic symptoms and signs of PPGL, which include hypertension, headache, palpitations, and diaphoresis. Intraoperatively, large amounts of catecholamines are released into the bloodstream through handling and manipulation of the tumor(s). In contrast, there could also be an abrupt decline in catecholamine levels after tumor resection. Because of such binary manifestations of PP...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
Conclusions: The mainstay of treatment for patients with PCC/PGLs is surgical. However, the tide may be turning with the discovery of new genes associated with PCC/PGLs that may shed light on oncometabolites utilized by these tumors. PMID: 29409060 [PubMed - as supplied by publisher]
Source: The Journal of Clinical Endocrinology and Metabolism - Category: Endocrinology Authors: Tags: J Clin Endocrinol Metab Source Type: research
Peter Anderson, MD, Pediatric Hematology Oncology and Blood and Marrow Transplantation of Cleveland Clinic discusses the Phase 2 ONC201 Patient Selection and especially Pheochromocytoma and Paragangli... Author: Cancer-News Added: 01/24/2018
Source: Oncology Tube - Category: Cancer & Oncology Source Type: podcasts
We report two cases of PCC/PGLs treated with TMZ. Case 1 is a 51-year-old man with local and distant recurrence (liver and bone metastases) of right adrenal PCC. Case 2 is a 54-year-old woman with a PCC/PGL syndrome caused by a mutation in MAX gene (c.171+1G>A), operated on for bilateral adrenal PCC and presenting with a large unresectable abdominal PGL. Both patients presented hypertension due to catecholamine hypersecretion. TMZ determined radiological response according to RECIST criteria, reduction of urinary catecholamine levels, and controlled hypertension in both patients. Furthermore, the current study demonstra...
Source: Anti-Cancer Drugs - Category: Cancer & Oncology Tags: Case Reports Source Type: research
ConclusionPazopanib has activity in Pheo/PGL requiring more study; optimal alpha- and beta-blockade are imperative pre-therapy in patients with secretory tumors, as risk of hypertension and cardiomyopathy are potentially life threatening.
Source: Endocrine - Category: Endocrinology Source Type: research
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