Peter Törzsök

Dr. Peter Törzsök

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 November 2023 in Clinical Cancer Research
Verified
Journal Article
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GBGazanfer Belge
Gazanfer Belge
CDCansu Dumlupinar
Cansu Dumlupinar
TNTim Nestler
Tim Nestler
MKMarkus Klemke
Markus Klemke
PTPeter Törzsök
Peter Törzsök
KDKlaus-Peter Dieckmann
Klaus-Peter Dieckmann
Purpose: Surveillance of clinical stage I (CSI) testicular germ cell tumors (GCT) is hampered by low sensitivity and specificity of current biomarkers for detecting relapses. This study evaluated if serum levels of microRNA371a-3p (M371 test) can: (i) Accurately detect relapses, (ii) detect relapses earlier than conventional technology, and (iii) if elevated postoperative M371 levels may predict relapse. Experimental Design: In a multicentric setting, 258 patients with testicular CSI GCT were prospectively followed by surveillance for a median time of 18 months with serial measurements of serum M371 levels, in addition to standard diagnostic techniques. Diagnostic characteristics of M371 for detecting relapses were calculated using ROC curve analysis. Results: Thirty-nine patients recurred (15.1%), all with elevated M371 levels; eight without relapse had elevations, too. The test revealed the following characteristics: area under the ROC curve of 0.993, sensitivity 100%, specificity 96.3%, positive predictive value 83%, negative predictive value 100%. Earlier relapse detection with the test was found in 28%, with non-significant median time gain to diagnosis. Postoperative M371 levels did not predict future relapse. Conclusions: The sensitivity and specificity of the M371 test for detecting relapses in CSI GCTs are much superior to those of conventional diagnostics. However, post-orchiectomy M371 levels are not predictive of relapse, and there is no significant earlier relapse detection with the test. In all, there is clear evidence for the utility of the M371 test for relapse detection suggesting it may soon be ready for implementation into routine follow-up schedules for patients with testicular GCT.

2 November 2022 in Journal of Clinical Medicine
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Journal Article
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PTPeter Törzsök
Peter Törzsök
CSChristopher Steiner
Christopher Steiner
MPMaximilian Pallauf
Maximilian Pallauf
MAMichael Abenhardt
Michael Abenhardt
LMLjiljana Milinovic
Ljiljana Milinovic
SDSusanne Deininger
Susanne Deininger
Background: This study investigates endocrine and exocrine testicular function, oxidative stress (OS) in semen, and erectile function in patients who underwent surgery for suspected testicular torsion (TT). Methods: We evaluated 49 patients over a mean follow-up of 101 months: n = 25 patients treated with surgical exploration, n = 20 patients treated with detorsion, and n = 4 treated with orchiectomy. We performed semen analysis including Male infertility Oxidative System (MyOxSIS) analysis, physical examination, and evaluation of endocrine and erectile function. Results: OS, erectile function and spermiogram categories did not differ significantly between the groups. The interval from the onset of symptoms to surgery differed significantly between groups (p < 0.001). Preservation of the testes was associated with a higher round cell count (p = 0.002) and follicle stimulating hormone (FSH, p = 0.003). OS showed a significant positive correlation with the spermiogram category (0.337; p = 0.022). A negative correlation was observed between OS and age (p = 0.033), sperm concentration (p < 0.001) and total sperm count (p = 0.006). Conclusions: Endocrine, exocrine and erectile function are not significantly affected by TT in the long term. Orchiectomy results in elevated FSH and a lower round cell count compared to preservation of the testis.

3 April 2014 in Pathology and Oncology Research
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ÁHÁgnes Holczbauer
Ágnes Holczbauer
BGBenedek Gyöngyösi
Benedek Gyöngyösi
GLGábor Lotz
Gábor Lotz
PTPeter Törzsök
Peter Törzsök
PKPál Kaposi-Novák
Pál Kaposi-Novák
AKAndrás Kiss
András Kiss

29 January 2022 in Cancers
Verified
Journal Article
Open access
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SDSusanne Deininger
Susanne Deininger
PTPeter Törzsök
Peter Törzsök
MMMichael Mitterberger
Michael Mitterberger
MPMaximilian Pallauf
Maximilian Pallauf
DODavid Oswald
David Oswald
Lukas LusuardiLukas Lusuardi
Lukas Lusuardi
Background: In Bacillus Calmette–Guérin (BCG) refractory non-muscle-invasive bladder cancer (NMIBC), radical cystectomy is the gold standard. The advent of immune checkpoint inhibitors (CPIs) has permanently changed the therapy landscape of bladder cancer (BC). This article presents a systematic review of immune-modulating (IM) therapies (CPIs and others) in BCG-refractory NMIBC. Methods: In total, 406 articles were identified through data bank research in PubMed/Medline, with data cutoff in October 2021. Four full-text articles and four additional congress abstracts were included in the review. Results: Durvalumab plus Oportuzumab monatox, Pembrolizumab, and Nadofaragene firadenovec (NF) show complete response (CR) rates of 41.6%, 40.6%, and 59.6% after 3 months, with a long-lasting effect, especially for NF (12-month CR rate of 30.5%). Instillations with oncolytic viruses such as NF and CG0070 show good efficacy without triggering significant immune-mediated systemic adverse events. Recombinant BCG VPM1002BC could prove to be valid as an alternative to BCG in the future. The recombinant pox-viral vector vaccine PANVAC™ is not convincing in combination with BCG. Interleukin mediating therapies, such as ALT-803, are currently being studied. Conclusion: CPIs and other IM agents now offer an increasing opportunity for bladder-preserving strategies. Studies on different substances are ongoing and will yield new findings.

4 October 2022 in Cancers
Verified
Journal Article
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DODavid Oswald
David Oswald
MPMaximilian Pallauf
Maximilian Pallauf
SDSusanne Deininger
Susanne Deininger
PTPeter Törzsök
Peter Törzsök
MSManuela Sieberer
Manuela Sieberer
CEChristian Eiben
Christian Eiben
Neoadjuvant chemotherapy is a well-established concept in muscle-invasive bladder cancer with known advantages in overall survival. Phase II trials show encouraging response rates for neoadjuvant immunotherapy before radical surgery in urothelial cancer. There is no recommendation for neoadjuvant therapy in upper tract urothelial carcinoma before nephroureterectomy. Our aim was to assess the available data on neoadjuvant chemotherapy and immunotherapy before nephroureterectomy in patients with high-risk upper tract urothelial carcinoma in terms of pathological downstaging and oncological outcomes. Two investigators screened PubMed/Medline for comparative trials in the English language. We identified 368 studies and included eleven investigations in a systematic review and meta-analysis for neoadjuvant chemotherapy and control groups. There were no comparative trials investigating immunotherapy in this setting. All 11 studies reported on overall pathological downstaging with a significant effect in favor of neoadjuvant chemotherapy (OR 5.17; 95%CI 3.82; 7.00). Pathological complete response and non-muscle invasive disease were significantly higher in patients receiving neoadjuvant chemotherapy (OR 12.07; 95%CI 4.16; 35.03 and OR 1.62; 95%CI 1.05; 2.49). Overall survival and progression-free survival data analysis showed a slight benefit for neoadjuvant chemotherapy. Our results show that neoadjuvant chemotherapy is effective in downstaging in upper urinary tract urothelial carcinoma. The selection of patients and chemotherapy regimens are unclear.

13 December 2022 in Antibiotics
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SDSusanne Deininger
Susanne Deininger
TGTherese Gründler
Therese Gründler
SDSebastian Hubertus Markus Deininger
Sebastian Hubertus Markus Deininger
KLKarina Lütcke
Karina Lütcke
HLHarry Lütcke
Harry Lütcke
CDChristian Deininger
Christian Deininger
Little is known about the antimicrobial resistance (AMR) status of uropathogens in Western Africa. We performed a retrospective evaluation of urine cultures collected from the rural Margret Marquart Catholic Hospital, Kpando, Ghana during the time period from October 2019–December 2021. Urine samples from 348 patients (median age 40 years, 52.6% male) were examined. Of these, 125 (35.9%) showed either fungal or bacterial growth, including Escherichia coli in 48 (38.4%), Candida species (spp.) in 29 (23.2%), Klebsiella spp. in 27 (21.6%), Proteus spp. in 12 (9.6%), Citrobacter spp. in 10 (8.0%), Salmonella spp. in 4 (3.2%), Staphylococcus spp. in 3 (2.4%), and Pseudomonas spp. in 2 (1.6%) cases. Two bacterial spp. were detected in 7 samples (5.6%). Antibiotic susceptibility testing showed resistance to a mean 8.6 out of 11 tested antibiotics per patient. Significant predictors (p < 0.05) of bacterial growth were age (OR 1.03), female sex (OR 3.84), and the number of pus cells (OR 1.05) and epithelial cells (OR 1.07) in urine microscopy. We observed an alarmingly high AMR rate among the uropathogens detected, even to reserve antibiotics. A similar resistance profile can be expected in West African patients living in high-income countries. These observations warrant the implementation of restrictive antibiotic protocols, together with the expansion of urine culture testing capacities, improvement of documentation and reporting of AMR rates, and continued research and development of new antibiotic therapies in order to stem the progression of AMR in this West African region.