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Featured researches published by M. Kurosch.


Cancer Letters | 2011

The cdk1-cyclin B complex is involved in everolimus triggered resistance in the PC3 prostate cancer cell line

Igor Tsaur; Jasmina Makarević; Lukasz Hudak; Eva Juengel; M. Kurosch; Christoph Wiesner; Georg Bartsch; Sebastian Harder; Axel Haferkamp; Roman A. Blaheta

The growth potential of PC3 prostate cancer cells, sensible (PC3(par)) or resistant (PC3(res)) to the mTOR inhibitor everolimus (RAD001) was investigated. Cell growth and proliferation of PC3(res) was similar to that of PC3(par), and late apoptosis increased in PC3(par) but decreased in PC3(res) following treatment with low dosed everolimus. PC3(res) accumulated in the G2/M-phase, accompanied by cdk1, cdk2 and cyclin B elevation. Knocking down cdk1 or cyclin B distinctly blocked the growth activity of PC3(res). One reason for everolimus resistance may be up-regulation of the cdk1-cyclin B complex in prostate cancer cells, leading to enhanced progression towards G2/M.


Urologe A | 2015

[Renal cell carcinoma: Drug therapy and prognostic models].

Michael Reiter; M. Kurosch; A. Haferkamp

Renal cell carcinoma (RCC) represents the sixth-leading cancer-specific cause of death worldwide. This is mainly caused by metastatic or locally advanced RCC. Approximately 25-30% of patients present with metastasis during the initial diagnosis. Furthermore, 20-30% of patients develop metastatic disease following initial curative surgery. Metastatic RCC is characterized by a poor prognosis with a median overall survival of less than 2 years. Today, targeted therapies such as VEGF receptor inhibitors and antagonists as well as mTOR inhibitors represent the standard of care in metastatic RCC. Conventional chemotherapies or cytokine-based medications have been abandoned due to inferior clinical efficacy compared with targeted therapies. In Germany, sunitinib, pazopanib, temsirolimus, and bevacizumab have been approved for first-line treatment and sorafenib, axitinib, and everolimus for second-line treatment. Prognostic models, assessing individual risk profiles, have been developed in the last 15 years, which are crucial for the design of trials, patient counseling, and initiation of goal-directed therapies.


Urologe A | 2013

[Fusion imaging in urology: combination of MRI and TRUS for detection of prostate cancer].

David Schilling; M. Kurosch; R. Mager; Igor Tsaur; Axel Haferkamp; Röthke M

Multiparametric magnetic resonance imaging (MRI) represents the most accurate imaging modality for prostate cancer imaging to date. Transrectal ultrasound (TRUS) is easily applied and therefore remains the gold standard for systematic prostate biopsies. However, the advantages of both modalities can be combined by image fusion. Currently, several image fusion devices are being implemented into clinical routine. First data show an increased detection rate of prostate cancer compared to systematic TRUS biopsies. At present prostatic deformation and intracorporeal movement represent technical challenges yet to be overcome. The present article gives an overview about the status of MRI-based biopsy techniques and highlights the current studies on the topic.ZusammenfassungDerzeit stellt die multiparametrische Magnetresonanztomographie (MRT) die diagnostisch genaueste Methode zur Darstellung eines Prostatakarzinoms dar. Der Goldstandard zur Prostatabiopsie ist aufgrund der einfachen Anwendung die systematische Biopsie mit dem transrektalen Ultraschall (TRUS). Durch die Kombination können die Vorteile beider Methoden genutzt werden. Mittlerweile befinden sich mehrere Bildgebungssysteme zur fusionsbildgestützten Biopsie in der Erprobung. Erste Daten zeigen höhere Karzinomdetektionsraten als bei der systematischen TRUS-Biopsie. Allerdings stellen die Verformung der Prostata und die intrakorporale Beweglichkeit Herausforderungen dar, die noch nicht abschließend gelöst sind. Der vorliegende Artikel gibt eine Übersicht über den aktuellen Stand der MRT-gestützten Biopsieverfahren und beleuchtet die aktuelle Datenlage.AbstractMultiparametric magnetic resonance imaging (MRI) represents the most accurate imaging modality for prostate cancer imaging to date. Transrectal ultrasound (TRUS) is easily applied and therefore remains the gold standard for systematic prostate biopsies. However, the advantages of both modalities can be combined by image fusion. Currently, several image fusion devices are being implemented into clinical routine. First data show an increased detection rate of prostate cancer compared to systematic TRUS biopsies. At present prostatic deformation and intracorporeal movement represent technical challenges yet to be overcome. The present article gives an overview about the status of MRI-based biopsy techniques and highlights the current studies on the topic.


International Braz J Urol | 2015

Feasibility, complications and oncologic results of a limited inguinal lymph node dissection in the management of penile cancer

Igor Tsaur; Kilian M. Gust; Tanja Huesch; H. Borgmann; Maximilian P. Brandt; M. Kurosch; Michael Reiter; Georg Bartsch; David Schilling; Axel Haferkamp

ABSTRACT Purpose: In patients with penile cancer (PeCa) and increased risk of inguinal lymphatic dissemination, inguinal lymphadenectomy offers a direct histological staging as the most reliable tool for assessment of the nodal metastasic status and a definitive oncologic treatment simultaneously. However, peri- and/or postoperative mutilating sequalae often occurn. We report on clinical outcome and complications of a limited inguinal lymph node (LN) dissection. Materials and Methods: Clinical and histopathological data of all patients with PeCa who underwent limited inguinal lymphadenectomy (LIL) at our institution between 1986 and 2012 were comprehensively analyzed. Perioperative results were presented in relation to one-sided procedures, if appropriate, which were assessed without cross comparison with contralateral LILs. Results: 29 consecutive patients with PeCa aged 60±10.3 years were included in the current study with 57 one-sided LIL performed. Mean operative time for one-sided LIL was 89.0±37.3 minutes with 8.1±3.7 LNs removed. A complication rate of 54.4% (n=31), including 16 minor and 15 major complications was found in a total of 57 procedures with leg oedema being the most prevalent morbidity (15.8%). 4 patients with clinically positive LNs developed inguinal lymphatic recurrence within 9 months after surgery. Conclusions: Our technique of limited inguinal LN dissection provided an acceptable complication rate without aggravating morbidity. We experienced no recurrences in clinically LN negative patients, so that the approach might be a reasonable option in this scenario. In patients with enlarged LNs, radical inguinal lymphadenectomy still appears to represent the gold standard.


Urologe A | 2010

[Diagnosis and treatment of overactive bladder, neurourology, urogynaecology and urinary stress incontinence: latest publications from 2009 and 2010].

Michael Reiter; A. Oeztuerk; M. Kurosch; A. Haferkamp

ZusammenfassungDie vorliegende Übersichtsarbeit stellt eine Zusammenfassung und Übersicht der wichtigsten Publikationen des Jahres 2009 zu den Themen überaktive Blase (OAB), Neurourologie, Urogynäkologie und Belastungsinkontinenz dar. Dabei wurde der Fokus auf klinisch relevante Studien gelegt, die einen direkten Einfluss auf die Diagnostik- und Therapieplanung bei diesen Krankheitsbildern haben.Insbesondere Forschungsergebnisse aus den Bereichen OAB und weibliche Belastungsinkontinenz dominierten die wissenschaftliche Diskussion im Jahre 2009. Dabei konnten Studien von hohem Evidenzgrad bestehende Behandlungskonzepte bestätigen und neue Ansätze bestärken. Veröffentlichungen zur männlichen Inkontinenz waren dagegen im Jahr 2009 deutlich geringer vertreten als noch in den Vorjahren und haben das klinische Armentarium nicht wesentlich verändert.AbstractThe current review presents a summary of the most important manuscripts concerning the topics of overactive bladder, neurourology, genital prolapse and male and female urinary stress incontinence published in the year 2009 and the first 4 months of 2010 in peer-reviewed journals. The literature research was focussed on clinically relevant human studies with influence on diagnosis and therapeutic strategies of these diseases.Most of the published manuscripts focussed on the fields of overactive bladder and female urinary stress incontinence during the last 16 months. Some of the studies had very high evidence levels and confirmed new therapeutic strategies. Publications focussing on male urinary stress incontinence were of limited numbers in the year 2009 and did not change the clinical armamentarium significantly.The current review presents a summary of the most important manuscripts concerning the topics of overactive bladder, neurourology, genital prolapse and male and female urinary stress incontinence published in the year 2009 and the first 4 months of 2010 in peer-reviewed journals. The literature research was focussed on clinically relevant human studies with influence on diagnosis and therapeutic strategies of these diseases.Most of the published manuscripts focussed on the fields of overactive bladder and female urinary stress incontinence during the last 16 months. Some of the studies had very high evidence levels and confirmed new therapeutic strategies. Publications focussing on male urinary stress incontinence were of limited numbers in the year 2009 and did not change the clinical armamentarium significantly.


Urologe A | 2015

Therapy of overactive bladder (OAB)

M. Kurosch; R. Mager; Kilian M. Gust; M. Brandt; H. Borgmann; Axel Haferkamp

ZusammenfassungDer Symptomenkomplex der überaktiven Blase („overactive bladder“, OAB) mit oder ohne Inkontinenz („wet/dry“) hat mit etwa 17% in der europäischen Bevölkerung eine hohe Prävalenz und führt nicht nur zu einem hohen Leidensdruck der Betroffenen, sondern auch zu hohen Kosten für das Gesundheitswesen. Myogene, urotheliale und neurogene Faktoren führen zu noch vielfach unbekannten Veränderungen an Muskel-, Nerven- und Bindegewebe. Zur Definition, Ätiologie und Diagnostik der Erkrankung wird hier auf die vorausgegangene CME-Fortbildung „Diagnostik der überaktiven Blase (OAB)“ verwiesen. In den letzten Jahren ist etwas Bewegung in die Forschung zur OAB gekommen, sei es in Bezug auf die pathophysiologischen Modelle oder hinsichtlich neuer Therapieansätze (Entwicklung neuer Medikamente). Neben altbewähren Substanzen werden zunehmend auch neu zugelassene Wirkstoffe zur Therapie der OAB eingesetzt. Ferner spielen neben der Pharmakotherapie auch nichtmedikamentöse Therapieansätze und chirurgische Techniken weiterhin eine wichtige Rolle.AbstractOveractive bladder (OAB) is a symptom complex which is present in approximately 17 % of the European population. It is observed in the presence or absence of incontinence (wet or dry) and is associated with a high degree of psychological stress as well as high costs for the healthcare system. Myogenic, urothelial and neurogenic factors lead to frequently unknown changes of muscular, neural and connective tissue. For the definition, etiology and diagnostics of the disease the previous continuing medical education (CME) article “Diagnosis of overactive bladder (OAB)” should be consulted. In recent years some improvements have been made in OAB-related research, in terms of pathophysiological models and new pharmacological approaches with the development of new therapeutic agents. Besides classical substances, recently approved agents are increasingly being used for the therapy of OAB. Furthermore, non-pharmaceutical approaches and surgical techniques still play an important role in the therapy of OAB.


Urologe A | 2015

Therapie der überaktiven Blase (OAB)@@@Therapy of overactive bladder (OAB)

M. Kurosch; R. Mager; Kilian M. Gust; M. Brandt; H. Borgmann; Axel Haferkamp

ZusammenfassungDer Symptomenkomplex der überaktiven Blase („overactive bladder“, OAB) mit oder ohne Inkontinenz („wet/dry“) hat mit etwa 17% in der europäischen Bevölkerung eine hohe Prävalenz und führt nicht nur zu einem hohen Leidensdruck der Betroffenen, sondern auch zu hohen Kosten für das Gesundheitswesen. Myogene, urotheliale und neurogene Faktoren führen zu noch vielfach unbekannten Veränderungen an Muskel-, Nerven- und Bindegewebe. Zur Definition, Ätiologie und Diagnostik der Erkrankung wird hier auf die vorausgegangene CME-Fortbildung „Diagnostik der überaktiven Blase (OAB)“ verwiesen. In den letzten Jahren ist etwas Bewegung in die Forschung zur OAB gekommen, sei es in Bezug auf die pathophysiologischen Modelle oder hinsichtlich neuer Therapieansätze (Entwicklung neuer Medikamente). Neben altbewähren Substanzen werden zunehmend auch neu zugelassene Wirkstoffe zur Therapie der OAB eingesetzt. Ferner spielen neben der Pharmakotherapie auch nichtmedikamentöse Therapieansätze und chirurgische Techniken weiterhin eine wichtige Rolle.AbstractOveractive bladder (OAB) is a symptom complex which is present in approximately 17 % of the European population. It is observed in the presence or absence of incontinence (wet or dry) and is associated with a high degree of psychological stress as well as high costs for the healthcare system. Myogenic, urothelial and neurogenic factors lead to frequently unknown changes of muscular, neural and connective tissue. For the definition, etiology and diagnostics of the disease the previous continuing medical education (CME) article “Diagnosis of overactive bladder (OAB)” should be consulted. In recent years some improvements have been made in OAB-related research, in terms of pathophysiological models and new pharmacological approaches with the development of new therapeutic agents. Besides classical substances, recently approved agents are increasingly being used for the therapy of OAB. Furthermore, non-pharmaceutical approaches and surgical techniques still play an important role in the therapy of OAB.


Urologe A | 2015

Diagnosis of overactive bladder (OAB)

M. Kurosch; R. Mager; Kilian M. Gust; M. Brandt; H. Borgmann; Axel Haferkamp

ZusammenfassungDer Symptomenkomplex der überaktiven Blase („overactive bladder“, OAB) mit oder ohne Inkontinenz („wet/dry“) hat mit etwa 17% in der europäischen Bevölkerung eine hohe Prävalenz und führt nicht nur zu einem hohen Leidensdruck der Betroffenen, sondern auch zu hohen Kosten für das Gesundheitswesen. Myogene, urotheliale und neurogene Faktoren führen zu noch vielfach unbekannten Veränderungen an Muskel-, Nerven- und Bindegewebe. Die OAB ist eine empirische Diagnose, die als Basis für eine initiale Therapie dienen kann. Symptome des unteren Harntrakts müssen daher zuvor zwingend abgeklärt werden. Da es für die OAB jedoch keine etablierten Biomarker gibt, ist eine definitive Diagnostik problematisch. Eine suffiziente Basisdiagnostik inkl. ausführlicher Anamnese ist neben weiterführender Diagnostik sowie ergänzenden Untersuchungen inkl. Urodynamik dabei entscheidend. Die Therapie der OAB wird in einer weiteren CME-Fortbildung „Therapie der überaktiven Blase (OAB)“ behandelt.AbstractOveractive bladder (OAB) is a symptom complex which is present in approximately 17% of the European population. It is observed in the presence or absence of incontinence (wet or dry) and is associated with a high degree of psychological stress as well as high costs for the healthcare system. Myogenic, urothelial and neurogenic factors lead to frequently unknown changes of muscular, neural and connective tissue. The diagnosis of OAB is empirical and can be used as a basis for initial treatment, while lower urinary tract symptoms have to be evaluated up front. As there are no established biomarkers for OAB, a definitive diagnosis is problematic. It is important to carry out routine diagnostics including a detailed medical history and if needed urodynamic evaluation of the patient. Therapy of OAB will be the topic of a further continuing medical education (CME) article entitled “Therapy of overactive bladder (OAB)”.


Urologe A | 2015

Diagnostik der überaktiven Blase (OAB)

M. Kurosch; R. Mager; Kilian M. Gust; M. Brandt; H. Borgmann; Axel Haferkamp

ZusammenfassungDer Symptomenkomplex der überaktiven Blase („overactive bladder“, OAB) mit oder ohne Inkontinenz („wet/dry“) hat mit etwa 17% in der europäischen Bevölkerung eine hohe Prävalenz und führt nicht nur zu einem hohen Leidensdruck der Betroffenen, sondern auch zu hohen Kosten für das Gesundheitswesen. Myogene, urotheliale und neurogene Faktoren führen zu noch vielfach unbekannten Veränderungen an Muskel-, Nerven- und Bindegewebe. Die OAB ist eine empirische Diagnose, die als Basis für eine initiale Therapie dienen kann. Symptome des unteren Harntrakts müssen daher zuvor zwingend abgeklärt werden. Da es für die OAB jedoch keine etablierten Biomarker gibt, ist eine definitive Diagnostik problematisch. Eine suffiziente Basisdiagnostik inkl. ausführlicher Anamnese ist neben weiterführender Diagnostik sowie ergänzenden Untersuchungen inkl. Urodynamik dabei entscheidend. Die Therapie der OAB wird in einer weiteren CME-Fortbildung „Therapie der überaktiven Blase (OAB)“ behandelt.AbstractOveractive bladder (OAB) is a symptom complex which is present in approximately 17% of the European population. It is observed in the presence or absence of incontinence (wet or dry) and is associated with a high degree of psychological stress as well as high costs for the healthcare system. Myogenic, urothelial and neurogenic factors lead to frequently unknown changes of muscular, neural and connective tissue. The diagnosis of OAB is empirical and can be used as a basis for initial treatment, while lower urinary tract symptoms have to be evaluated up front. As there are no established biomarkers for OAB, a definitive diagnosis is problematic. It is important to carry out routine diagnostics including a detailed medical history and if needed urodynamic evaluation of the patient. Therapy of OAB will be the topic of a further continuing medical education (CME) article entitled “Therapy of overactive bladder (OAB)”.


Urologe A | 2015

Diagnostik der überaktiven Blase (OAB)@@@Diagnosis of overactive bladder (OAB)

M. Kurosch; R. Mager; Kilian M. Gust; M. Brandt; H. Borgmann; Axel Haferkamp

ZusammenfassungDer Symptomenkomplex der überaktiven Blase („overactive bladder“, OAB) mit oder ohne Inkontinenz („wet/dry“) hat mit etwa 17% in der europäischen Bevölkerung eine hohe Prävalenz und führt nicht nur zu einem hohen Leidensdruck der Betroffenen, sondern auch zu hohen Kosten für das Gesundheitswesen. Myogene, urotheliale und neurogene Faktoren führen zu noch vielfach unbekannten Veränderungen an Muskel-, Nerven- und Bindegewebe. Die OAB ist eine empirische Diagnose, die als Basis für eine initiale Therapie dienen kann. Symptome des unteren Harntrakts müssen daher zuvor zwingend abgeklärt werden. Da es für die OAB jedoch keine etablierten Biomarker gibt, ist eine definitive Diagnostik problematisch. Eine suffiziente Basisdiagnostik inkl. ausführlicher Anamnese ist neben weiterführender Diagnostik sowie ergänzenden Untersuchungen inkl. Urodynamik dabei entscheidend. Die Therapie der OAB wird in einer weiteren CME-Fortbildung „Therapie der überaktiven Blase (OAB)“ behandelt.AbstractOveractive bladder (OAB) is a symptom complex which is present in approximately 17% of the European population. It is observed in the presence or absence of incontinence (wet or dry) and is associated with a high degree of psychological stress as well as high costs for the healthcare system. Myogenic, urothelial and neurogenic factors lead to frequently unknown changes of muscular, neural and connective tissue. The diagnosis of OAB is empirical and can be used as a basis for initial treatment, while lower urinary tract symptoms have to be evaluated up front. As there are no established biomarkers for OAB, a definitive diagnosis is problematic. It is important to carry out routine diagnostics including a detailed medical history and if needed urodynamic evaluation of the patient. Therapy of OAB will be the topic of a further continuing medical education (CME) article entitled “Therapy of overactive bladder (OAB)”.

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R. Mager

Goethe University Frankfurt

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Michael Reiter

Goethe University Frankfurt

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Igor Tsaur

Goethe University Frankfurt

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T. Hüsch

Goethe University Frankfurt

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H. Borgmann

Goethe University Frankfurt

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Kilian M. Gust

Medical University of Vienna

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A. Oeztuerk

Goethe University Frankfurt

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S. Hartmann

Goethe University Frankfurt

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