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minoxidil cancer

Kanagaraj Ramsamy, Radhakrishnan Subramaniyan, Anjan Kumar Patra
INTRODUCTION: Androgenetic alopecia (AGA) is characterized by miniaturization of the hair follicle, leading to vellus transformation of the terminal hair follicle. It is caused by interactions between androgens, several genes, and environmental factors with hair follicles. Benign prostatic hyperplasia (BPH) is highly prevalent among elderly men but infrequent in those younger than 40 years. Because both entities share a common pathogenesis and AGA manifests before the onset of BPH, there could be an association between AGA and BPH...
April 2016: International Journal of Trichology
I-Shu Chen, Chiang-Ting Chou, Yuan-Yuarn Liu, Chia-Cheng Yu, Wei-Zhe Liang, Chun-Chi Kuo, Pochuen Shieh, Daih-Huang Kuo, Fu-An Chen, Chung-Ren Jan
Minoxidil is clinically used to prevent hair loss. However, its effect on Ca(2+) homeostasis in prostate cancer cells is unclear. This study explored the effect of minoxidil on cytosolic-free Ca(2+) levels ([Ca(2+)]i) and cell viability in PC3 human prostate cancer cells. Minoxidil at concentrations between 200 and 800 μM evoked [Ca(2+)]i rises in a concentration-dependent manner. This Ca(2+) signal was inhibited by 60% by removal of extracellular Ca(2+). Minoxidil-induced Ca(2+) influx was confirmed by Mn(2+)-induced quench of fura-2 fluorescence...
June 16, 2016: Journal of Receptor and Signal Transduction Research
Daška Štulhofer Buzina, Ivana Martinac, Daniela Ledić Drvar, Romana Čeović, Ivan Bilić, Branka Marinović
Dear Editor, Inhibition of the epidermal growth factor receptor (EGFR) is a new strategy in treatment of a variety of solid tumors, such as colorectal carcinoma, non-small cell lung cancer, squamous cell carcinoma of the head and neck, and pancreatic cancer (1). Cetuximab is a chimeric human-murine monoclonal antibody against EGFR. Cutaneous side effects are the most common adverse reactions occurring during epidermal growth factor receptor inhibitors (EGFRI) therapy. Papulopustular rash (acne like rash) develop with 80-86% patients receiving cetuximab, while xerosis, eczema, fissures, teleangiectasiae, hyperpigmentations, and nail and hair changes occur less frequently (2)...
April 2016: Acta Dermatovenerologica Croatica: ADC
Sonia Stoica, George E Magoulas, Antonia I Antoniou, Sherif Suleiman, Analisse Cassar, Lucienne Gatt, Dionissios Papaioannou, Constantinos M Athanassopoulos, Pierre Schembri-Wismayer
Activation of minoxidil (MNX) with N,N'-carbonyldiimidazole and coupling with natural polyamines (PAs) and commercially available aliphatic or aromatic amines provided a series of new conjugates which were evaluated for their ability to induce differentiation to HL-60 acute myeloid leukemia cancer cells, using a modified NBTZ reduction test. Although neither MNX nor 4,4'-methylenedianiline (MDA) or 2,7-diaminofluorene (DAF), alone or in combination, had any effect, the MNX-spermine (SPM) conjugate (11) and the conjugates 7 and 8 of MNX with MDA and DAF exhibited a differentiation-inducing effect at a concentration of 10μM without being toxic on proliferating human peripheral blood mononuclear cells...
February 15, 2016: Bioorganic & Medicinal Chemistry Letters
Hyoseung Shin, Seong Jin Jo, Do Hun Kim, Ohsang Kwon, Seung-Kwon Myung
Chemotherapy-induced alopecia (CIA) is a highly distressing event for cancer patients, and hence, we here aimed to assess the efficacy of various interventions in the prevention of CIA. We searched PubMed, EMBASE and the Cochrane Library, from June 20, 2013 through August 31, 2013. Two of the authors independently reviewed and selected clinical trials that reported the efficacy of any intervention for prevention of CIA compared with that of controls. Two authors extracted data independently on dichotomized outcome in terms of CIA occurrence...
March 1, 2015: International Journal of Cancer. Journal International du Cancer
Yukio Tsuji, Takahiro Nakayama, Keiko Bono, Mizuki Kitamura, Ichiro Imafuku
We report two cases of stroke associated with the use of finasteride at 1 mg/day, which is approved in Japan for the treatment of male-pattern hair loss. The first case involved a 35-year-old male taking 1 mg of finasteride daily for 6 months to prevent male-pattern hair loss. He was taken to a hospital and later admitted to our hospital owing to headache and seizures. Brain computed tomography (CT) images showed a low-density area in the right frontal lobe. CT venography (CTV) revealed sinus thrombosis and he was treated with an anticoagulant...
2014: Rinshō Shinkeigaku, Clinical Neurology
Cheng-Lung Hsu, Jai-Shin Liu, An-Chi Lin, Chih-Hsun Yang, Wen-Hung Chung, Wen-Guey Wu
Although minoxidil has been used for more than two decades to treat androgenetic alopecia (AGA), an androgen-androgen receptor (AR) pathway-dominant disease, its precise mechanism of action remains elusive. We hypothesized that minoxidil may influence the AR or its downstream signaling. These tests revealed that minoxidil suppressed AR-related functions, decreasing AR transcriptional activity in reporter assays, reducing expression of AR targets at the protein level, and suppressing AR-positive LNCaP cell growth...
April 30, 2014: Oncotarget
Sakari Vanharanta, Joan Massagué
Hypoxia-inducible factors (HIF) have long been linked to malignant tumor phenotypes in various cancer types, and several downstream mediators of HIF action are deregulated in metastatic carcinomas. A new study links hypoxia-induced collagen remodeling to sarcoma progression, providing evidence for unifying mechanisms of carcinoma and sarcoma metastasis.
October 2013: Cancer Discovery
Mariel Núñez, Vanina Medina, Graciela Cricco, Máximo Croci, Claudia Cocca, Elena Rivera, Rosa Bergoc, Gabriela Martín
BACKGROUND: Glibenclamide (Gli) binds to the sulphonylurea receptor (SUR) that is a regulatory subunit of ATP-sensitive potassium channels (KATP channels). Binding of Gli to SUR produces the closure of KATP channels and the inhibition of their activity. This drug is widely used for treatment of type 2-diabetes and it has been signaled as antiproliferative in several tumor cell lines. In previous experiments we demonstrated the antitumoral effect of Gli in mammary tumors induced in rats...
2013: BMC Pharmacology & Toxicology
Carlos Gustavo Wambier, Caroline Silva Pereira, Benedito de Pina Almeida Prado Júnior, Norma Tiraboschi Foss
UNLABELLED: A focused and commented review on the impact of dermatologic diseases and interventions in the solidary act of donating blood is presented to dermatologists to better advise their patients. This is a review of current Brazilian technical regulations on hemotherapeutic procedures as determined by Ministerial Directive #1353/2011 by the Ministry of Health and current internal regulations of the Hemotherapy Center of Ribeirão Preto, a regional reference center in hemotherapeutic procedures...
July 2012: Anais Brasileiros de Dermatologia
N Kluger, W Jacot, E Frouin, V Rigau, S Poujol, O Dereure, B Guillot, G Romieu, D Bessis
BACKGROUND: To analyze the clinical and histological features of permanent alopecia following a sequential fluorouracil/epirubicin/cyclophosphamide (FEC) and docetaxel regimen for adjuvant breast cancer treatment. PATIENTS AND METHODS: Women treated for breast cancer by a sequential adjuvant FEC and docetaxel regimen who developed permanent alopecia diagnosed between 2007 and 2011 were identified from the Department of Dermatology (Saint-Eloi Hospital, Montpellier, France) and the Department of Medical Oncology (CRLC Val d'Aurelle, Montpellier, France)...
November 2012: Annals of Oncology: Official Journal of the European Society for Medical Oncology
Richard L Nelson, Kathryn Thomas, Jenna Morgan, Abigail Jones
BACKGROUND: Because of the disability associated with surgery for anal fissure and the risk of incontinence, medical alternatives for surgery have been sought. Most recently, pharmacologic methods that relax the anal smooth muscle, to accomplish reversibly what occurs in surgery, have been used to obtain fissure healing. OBJECTIVES: To assess the efficacy and morbidity of various medical therapies for anal fissure. SEARCH METHODS: Search terms include "anal fissure randomized"...
2012: Cochrane Database of Systematic Reviews
Kendra Gail Bergstrom
No abstract text is available yet for this article.
January 2011: Journal of Drugs in Dermatology: JDD
Caroline E Yeager, Elise A Olsen
Chemotherapy-induced alopecia has been well documented as a cause of distress to patients undergoing cancer treatment. Despite the importance of hair loss to patients, however, patients often receive little more counseling than the advice to purchase a wig or other head covering for the duration of their treatment. Research into non-camouflage (wigs, turbans, and head scarves) treatment methods has been complicated both by a lack of a standardized methodology for evaluating hair loss and hair regrowth and by a lack of human trials...
July 2011: Dermatologic Therapy
Junichi Enokizono, Hiroyuki Kusuhara, Yuichi Sugiyama
Breast cancer resistance protein (Bcrp/Abcg2) is a member of the ATP-binding cassette transporter family with the ability to transport a variety of sulfate conjugates. In the present study, the regional expression and activity of Bcrp and sulfotransferases (SULTs/Sults) were investigated in mouse intestine. Western blotting analysis revealed the highest expression of Bcrp in the ileum over the duodenum, jejunum, and colon. Functional analysis of Bcrp was performed in everted intestinal sacs using 4-methylumbelliferone (4MU)...
June 2007: Drug Metabolism and Disposition: the Biological Fate of Chemicals
R Nelson
BACKGROUND: Because of the disability associated with surgery for anal fissure and the risk of incontinence, medical alternatives for surgery have been sought. Most recently, pharmacologic methods that relax the anal smooth muscle, to accomplish reversibly what occurs in surgery, have been used to obtain fissure healing. OBJECTIVES: To assess the efficacy and morbidity of various medical therapies for anal fissure. SEARCH STRATEGY: Search terms include "anal fissure randomized"...
2006: Cochrane Database of Systematic Reviews
Jie Wang, Ze Lu, Jessie L-S Au
PURPOSE: The goal is to provide an overview on the advances in protection against chemotherapy-induced alopecia (CIA). MATERIALS AND METHODS: The four major parts of this review are (a) overview of the hair follicle biology, (b) characteristics of CIA, (c) state-of-the-art animal models of CIA, and (d) experimental approaches on protection against CIA. RESULTS: The hair follicle represents an unintended target of cancer chemotherapy. CIA is a significant side effect that compromises the quality of life of patients...
November 2006: Pharmaceutical Research
Marjan Yousefi, Joseph R Payne, Raymond L Barnhill
A 41-year-old white female with a past medical history of hypothyroidism and alopecia universalis presented on January 24, 2002 with a recently changing mole. She indicated changes in size and color of the superior aspect of a mole that had been present for more than 8 years. She had approximately 20 lifetime peeling sunburns due to being a lifeguard. No family or previous personal history of skin cancers, including melanoma or atypical nevi, was reported. Her history of alopecia universalis began 12 years previously and has partially resolved with remaining patchy alopecia of the scalp and eyebrows...
March 2006: International Journal of Dermatology
Mansoor Abdul, Arben Santo, Naseema Hoosein
BACKGROUND: Potassium ion (K+) channels are known to play a key role in breast cancer proliferation. MATERIALS AND METHODS: We investigated the expression of Kv1.3 voltage-gated K+ channels in 60 human breast cancer specimens by immunohistochemistry. The effects of K+ channel-blockers on cellular proliferation were examined in vitro. RESULTS: No immunostaining was observed in 4 normal human breast specimens. Eighteen (30%) breast cancer specimens showed high, 35 (58%) moderate and 7 (12%) low Kv1...
July 2003: Anticancer Research
Mansoor Abdul, Naseema Hoosein
Four normal and 79 human prostate cancer (Pca) specimens were examined, by immunohistochemistry, for expression of voltage-gated potassium ion channels. Strong immunostaining (for Kv1.3) was observed in the normal and 47% (37/79) of Pca specimens. Twenty-nine percent (23/79) Pca specimens showed moderate and 24% (19/79) displayed low staining. Three potassium channel-openers at a concentration of 10 microg/mL, minoxidil (47.8 microM), 1-Ethyl-2-benzimidazolinone (EBIO) (61.7 microM) and diazoxide (43.3 microM), increased growth of PC3 cells by 30-50%...
December 1, 2002: Cancer Letters
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