Skip to main content
Erschienen in: Journal of Gastroenterology 6/2011

01.06.2011 | Original Article—Liver, Pancreas, and Biliary Tract

Oxidative stress is closely associated with tumor angiogenesis of hepatocellular carcinoma

verfasst von: Masayasu Jo, Taichiro Nishikawa, Tomoki Nakajima, Yoshihisa Okada, Kanji Yamaguchi, Hironori Mitsuyoshi, Kohichiroh Yasui, Masahito Minami, Masaki Iwai, Keizo Kagawa, Yoshito Itoh, Toshikazu Yoshikawa

Erschienen in: Journal of Gastroenterology | Ausgabe 6/2011

Einloggen, um Zugang zu erhalten

Abstract

Background

Oxidative stress (OS) plays an important role in the progression of chronic liver disease and hepatocarcinogenesis. However, the role of OS in the progression of hepatocellular carcinoma (HCC) is unclear. The aim of this study was to assess whether OS promotes angiogenesis in HCC.

Methods

The expressions of vascular endothelial growth factor (VEGF), VEGF receptor2 (VEGFR2), and phosphorylated Akt were assessed, and microvessel density (MVD) and the cancer-associated fibroblast (CAF) population were examined by immunohistological staining in 55 HCC samples. The OS level in these tissues was assessed using 8-hydroxy-2′-deoxyguanosine (8-OHdG) and 4-hydroxy-2-nonenal (4-HNE) immunostaining, and an 8-OHdG enzyme-linked immunosorbent assay (ELISA). The expression and activation of angiogenic factors and the effect of growth stimulation of human umbilical vein endothelial cells (HUVECs) were also assessed in vitro, using HLE hepatoma-derived cells and conditioned medium with or without treatment with hydrogen peroxide (H2O2); a phosphoinositide 3-kinase (PI3K) inhibitor, wortmannin; and an anti-oxidative agent, N-acetyl-l-cysteine (NAC).

Results

A higher OS grade was significantly associated with higher MVD, VEGF expression, Akt activity, and OS grade of CAFs, but not with the percentage of the CAFpopulation in HCC tissues. Additionally, cancer cells constituted a major population of OS marker-positive cells in HCC tissues. In vitro, H2O2 treatment induced up-regulation of VEGF at both the mRNA and protein levels, activated Akt, and resulted in the proliferation of HUVECs; the addition of wortmannin and NAC counteracted the effects of OS.

Conclusions

OS enhances the malignant potential of HCC through the stimulation of angiogenesis by activation of the Akt-VEGF pathway.
Literatur
1.
Zurück zum Zitat El-Serag HB, Davila JA, Petersen NJ, McGlynn KA. The continuing increase in the incidence of hepatocellular carcinoma in the United States. Ann Intern Med. 2003;139:817–23.PubMed El-Serag HB, Davila JA, Petersen NJ, McGlynn KA. The continuing increase in the incidence of hepatocellular carcinoma in the United States. Ann Intern Med. 2003;139:817–23.PubMed
3.
Zurück zum Zitat Marrero JA, Fontana RJ, Su GL, Conjeevaram HS, Emick DM, Lok AS. NAFLD may be a common underlying liver disease in patients with hepatocellular carcinoma in the United States. Hepatology. 2002;36:1349–54.PubMed Marrero JA, Fontana RJ, Su GL, Conjeevaram HS, Emick DM, Lok AS. NAFLD may be a common underlying liver disease in patients with hepatocellular carcinoma in the United States. Hepatology. 2002;36:1349–54.PubMed
4.
Zurück zum Zitat Befeler AS, Di Bisceglie AM. Hepatocellular carcinoma: diagnosis and treatment. Gastroenterology. 2002;122:1609–19.PubMedCrossRef Befeler AS, Di Bisceglie AM. Hepatocellular carcinoma: diagnosis and treatment. Gastroenterology. 2002;122:1609–19.PubMedCrossRef
5.
Zurück zum Zitat Poon RT, Fan ST, Tsang FH, Wong J. Locoregional therapies for hepatocellular carcinoma: a critical review from the surgeon’s perspective. Ann Surg. 2002;235:466–86.PubMedCrossRef Poon RT, Fan ST, Tsang FH, Wong J. Locoregional therapies for hepatocellular carcinoma: a critical review from the surgeon’s perspective. Ann Surg. 2002;235:466–86.PubMedCrossRef
6.
Zurück zum Zitat Torimura T, Sata M, Ueno T, Kin M, Tsuji R, Suzaku K, et al. Increased expression of vascular endothelial growth factor is associated with tumor progression in hepatocellular carcinoma. Hum Pathol. 1998;29:986–91.PubMedCrossRef Torimura T, Sata M, Ueno T, Kin M, Tsuji R, Suzaku K, et al. Increased expression of vascular endothelial growth factor is associated with tumor progression in hepatocellular carcinoma. Hum Pathol. 1998;29:986–91.PubMedCrossRef
7.
Zurück zum Zitat El-Assal ON, Yamanoi A, Soda Y, Yamaguchi M, Igarashi M, Yamamoto A, et al. Clinical significance of microvessel density and vascular endothelial growth factor expression in hepatocellular carcinoma and surrounding liver: possible involvement of vascular endothelial growth factor in the angiogenesis of cirrhotic liver. Hepatology. 1998;27:1554–62.PubMedCrossRef El-Assal ON, Yamanoi A, Soda Y, Yamaguchi M, Igarashi M, Yamamoto A, et al. Clinical significance of microvessel density and vascular endothelial growth factor expression in hepatocellular carcinoma and surrounding liver: possible involvement of vascular endothelial growth factor in the angiogenesis of cirrhotic liver. Hepatology. 1998;27:1554–62.PubMedCrossRef
8.
9.
Zurück zum Zitat Chen Q, Ames BN. Senescence-like growth arrest induced by hydrogen peroxide in human diploid fibroblast F65 cells. Proc Natl Acad Sci USA. 1994;91:4130–4.PubMedCrossRef Chen Q, Ames BN. Senescence-like growth arrest induced by hydrogen peroxide in human diploid fibroblast F65 cells. Proc Natl Acad Sci USA. 1994;91:4130–4.PubMedCrossRef
10.
Zurück zum Zitat Behrend L, Henderson G, Zwacka RM. Reactive oxygen species in oncogenic transformation. Biochem Soc Trans. 2003;31:1441–4.PubMedCrossRef Behrend L, Henderson G, Zwacka RM. Reactive oxygen species in oncogenic transformation. Biochem Soc Trans. 2003;31:1441–4.PubMedCrossRef
11.
Zurück zum Zitat Maulik N, Das DK. Redox signaling vascular angiogenesis. Free Radic Biol Med. 2002;33:1047–60.PubMedCrossRef Maulik N, Das DK. Redox signaling vascular angiogenesis. Free Radic Biol Med. 2002;33:1047–60.PubMedCrossRef
12.
Zurück zum Zitat Nakajima T, Moriguchi M, Katagishi T, Sekoguchi S, Nishikawa T, Takashima H, et al. Premature telomere shortening and impaired regenerative response in hepatocytes of individuals with NAFLD. Liver Int. 2006;26:23–31.PubMedCrossRef Nakajima T, Moriguchi M, Katagishi T, Sekoguchi S, Nishikawa T, Takashima H, et al. Premature telomere shortening and impaired regenerative response in hepatocytes of individuals with NAFLD. Liver Int. 2006;26:23–31.PubMedCrossRef
13.
Zurück zum Zitat Sekoguchi S, Nakajima T, Moriguchi M, Jo M, Nishikawa T, Katagishi T, et al. Role of cell-cycle turnover and oxidative stress in telomere shortening and cellular senescence in patients with chronic hepatitis C. J Gastroenterol Hepatol. 2007;22:182–90.PubMedCrossRef Sekoguchi S, Nakajima T, Moriguchi M, Jo M, Nishikawa T, Katagishi T, et al. Role of cell-cycle turnover and oxidative stress in telomere shortening and cellular senescence in patients with chronic hepatitis C. J Gastroenterol Hepatol. 2007;22:182–90.PubMedCrossRef
14.
Zurück zum Zitat Nishikawa T, Nakajima T, Katagishi T, Okada Y, Jo M, Kagawa K, et al. Oxidative stress may enhance the malignant potential of human hepatocellular carcinoma by telomerase activation. Liver Int. 2009;29:846–56.PubMedCrossRef Nishikawa T, Nakajima T, Katagishi T, Okada Y, Jo M, Kagawa K, et al. Oxidative stress may enhance the malignant potential of human hepatocellular carcinoma by telomerase activation. Liver Int. 2009;29:846–56.PubMedCrossRef
15.
Zurück zum Zitat Szatrowski TP, Nathan CF. Production of large amount of hydrogen peroxide by human tumor cells. Cancer Res. 1991;51:794–8.PubMed Szatrowski TP, Nathan CF. Production of large amount of hydrogen peroxide by human tumor cells. Cancer Res. 1991;51:794–8.PubMed
16.
Zurück zum Zitat Mise M, Arii S, Higashituji H, Furutani M, Niwano M, Harada T, et al. Clinical significance of vascular endothelial growth factor and basic fibroblast growth factor gene expression in liver tumor. Hepatology. 1996;23:455–64.PubMedCrossRef Mise M, Arii S, Higashituji H, Furutani M, Niwano M, Harada T, et al. Clinical significance of vascular endothelial growth factor and basic fibroblast growth factor gene expression in liver tumor. Hepatology. 1996;23:455–64.PubMedCrossRef
17.
Zurück zum Zitat Skinner HD, Zheng JZ, Fang J, Agani F, Jiang BH. Vascular endothelial growth factor transcriptional activation is mediated by hypoxia-inducible factor 1alpha, HDM2, and p70S6K1 in response to phosphatidylinositol 3-kinase/AKT signaling. J Biol Chem. 2004;279:45643–51.PubMedCrossRef Skinner HD, Zheng JZ, Fang J, Agani F, Jiang BH. Vascular endothelial growth factor transcriptional activation is mediated by hypoxia-inducible factor 1alpha, HDM2, and p70S6K1 in response to phosphatidylinositol 3-kinase/AKT signaling. J Biol Chem. 2004;279:45643–51.PubMedCrossRef
18.
Zurück zum Zitat Chandel NS, Maltepe E, Goldwasser E, Mathieu CE, Simon MC, Schumacker PT. Mitochondrial reactive oxygen species trigger hypoxia-induced transcription. Proc Natl Acad Sci USA. 1998;95:11715–20.PubMedCrossRef Chandel NS, Maltepe E, Goldwasser E, Mathieu CE, Simon MC, Schumacker PT. Mitochondrial reactive oxygen species trigger hypoxia-induced transcription. Proc Natl Acad Sci USA. 1998;95:11715–20.PubMedCrossRef
19.
Zurück zum Zitat Desmet VJ, Gerber M, Hoofnagle JH, Manns M, Scheuer PJ. Classification of chronic hepatitis: diagnosis, grading and staging. Hepatology. 1994;19:1513–20.PubMedCrossRef Desmet VJ, Gerber M, Hoofnagle JH, Manns M, Scheuer PJ. Classification of chronic hepatitis: diagnosis, grading and staging. Hepatology. 1994;19:1513–20.PubMedCrossRef
20.
Zurück zum Zitat Weidner N, Semple JP, Welch WR, Folkman J. Tumor angiogenesis, metastasis–-correlation in invasive breast carcinoma. N Engl J Med. 1991;324:1–8.PubMedCrossRef Weidner N, Semple JP, Welch WR, Folkman J. Tumor angiogenesis, metastasis–-correlation in invasive breast carcinoma. N Engl J Med. 1991;324:1–8.PubMedCrossRef
21.
Zurück zum Zitat Shigenaga MK, Gimeno CJ, Ames BN. Urinary 8-hydroxy-2′-deoxyguanosine as a biomarker of in vivo oxidative DNA damage. Proc Natl Acad Sci USA. 1989;86:9697–701.PubMedCrossRef Shigenaga MK, Gimeno CJ, Ames BN. Urinary 8-hydroxy-2′-deoxyguanosine as a biomarker of in vivo oxidative DNA damage. Proc Natl Acad Sci USA. 1989;86:9697–701.PubMedCrossRef
22.
Zurück zum Zitat Kasai H. Analysis of a form of oxidative DNA damage, 8-hydroxy-2′-deoxyguanosine, as a marker of cellular oxidative stress during carcinogenesis. Mutat Res. 1997;387:147–63.PubMedCrossRef Kasai H. Analysis of a form of oxidative DNA damage, 8-hydroxy-2′-deoxyguanosine, as a marker of cellular oxidative stress during carcinogenesis. Mutat Res. 1997;387:147–63.PubMedCrossRef
23.
Zurück zum Zitat Kato J, Kobune M, Nakamura T, Kuroiwa G, Takada K, Takimoto R, et al. Normalization of elevated hepatic 8-hydroxy-20-deoxyguanosine levels in chronic hepatitis C patients by phlebotomy and low iron diet. Cancer Res. 2001;61:8697–702.PubMed Kato J, Kobune M, Nakamura T, Kuroiwa G, Takada K, Takimoto R, et al. Normalization of elevated hepatic 8-hydroxy-20-deoxyguanosine levels in chronic hepatitis C patients by phlebotomy and low iron diet. Cancer Res. 2001;61:8697–702.PubMed
24.
Zurück zum Zitat Maeda K, Koda M, Matono T, Sugihara T, Yamamoto S, Ueki M, et al. Preventive effects of ME3738 on hepatic fibrosis induced by bile duct ligation in rats. Hepatol Res. 2008;38:727–35.PubMedCrossRef Maeda K, Koda M, Matono T, Sugihara T, Yamamoto S, Ueki M, et al. Preventive effects of ME3738 on hepatic fibrosis induced by bile duct ligation in rats. Hepatol Res. 2008;38:727–35.PubMedCrossRef
25.
Zurück zum Zitat Hwang RF, Moore T, Arumugam T, Ramachandran V, Amos KD, Rivera A, et al. Cancer-associated stromal fibroblasts promote pancreatic tumor progression. Cancer Res. 2008;68:918–26.PubMedCrossRef Hwang RF, Moore T, Arumugam T, Ramachandran V, Amos KD, Rivera A, et al. Cancer-associated stromal fibroblasts promote pancreatic tumor progression. Cancer Res. 2008;68:918–26.PubMedCrossRef
26.
Zurück zum Zitat Nishikawa T, Nakajima T, Moriguchi M, Jo M, Sekoguchi S, Ishii M, et al. A green tea polyphenol, epigalocatechin-3-gallate, induces apoptosis of human hepatocellular carcinoma, possibly through inhibition of Bcl-2 family proteins. J Hepatol. 2006;44:1074–82.PubMedCrossRef Nishikawa T, Nakajima T, Moriguchi M, Jo M, Sekoguchi S, Ishii M, et al. A green tea polyphenol, epigalocatechin-3-gallate, induces apoptosis of human hepatocellular carcinoma, possibly through inhibition of Bcl-2 family proteins. J Hepatol. 2006;44:1074–82.PubMedCrossRef
27.
Zurück zum Zitat Liu LZ, Hu XW, Xia C, He J, Zhou Q, Shi X, et al. Reactive oxygen species regulate epidermal growth factor-induced vascular endothelial growth factor and hypoxia-inducible factor-1α expression through activation of AKT and P70S6K1 in human ovarian cancer cells. Free Radic Biol Med. 2006;41:1521–33.PubMedCrossRef Liu LZ, Hu XW, Xia C, He J, Zhou Q, Shi X, et al. Reactive oxygen species regulate epidermal growth factor-induced vascular endothelial growth factor and hypoxia-inducible factor-1α expression through activation of AKT and P70S6K1 in human ovarian cancer cells. Free Radic Biol Med. 2006;41:1521–33.PubMedCrossRef
28.
Zurück zum Zitat Jüngst C, Cheng B, Gehrke R, Schmitz V, Nischalke HD, Ramakers J, et al. Oxidative damage is increased in human liver tissue adjacent to hepatocellular carcinoma. Hepatology. 2004;39:1663–72.PubMedCrossRef Jüngst C, Cheng B, Gehrke R, Schmitz V, Nischalke HD, Ramakers J, et al. Oxidative damage is increased in human liver tissue adjacent to hepatocellular carcinoma. Hepatology. 2004;39:1663–72.PubMedCrossRef
29.
Zurück zum Zitat Siegel AB, Cohen EI, Ocean A, Lehrer D, Goldenberg A, Knox JJ, et al. Phase II trial evaluating the clinical and biologic effects of bevacizumab in unresectable hepatocellular carcinoma. J Clin Oncol. 2008;26:2992–8.PubMedCrossRef Siegel AB, Cohen EI, Ocean A, Lehrer D, Goldenberg A, Knox JJ, et al. Phase II trial evaluating the clinical and biologic effects of bevacizumab in unresectable hepatocellular carcinoma. J Clin Oncol. 2008;26:2992–8.PubMedCrossRef
30.
Zurück zum Zitat Zhou Q, Liu LZ, Fu B, Hu X, Shi X, Fang J, et al. Reactive oxygen species regulate insulin-induced VEGF and HIF-1α expression through the activation of p70S6K1 in human prostate cancer cells. Carcinogenesis. 2007;28:28–37.PubMedCrossRef Zhou Q, Liu LZ, Fu B, Hu X, Shi X, Fang J, et al. Reactive oxygen species regulate insulin-induced VEGF and HIF-1α expression through the activation of p70S6K1 in human prostate cancer cells. Carcinogenesis. 2007;28:28–37.PubMedCrossRef
31.
Zurück zum Zitat Xia C, Meng Q, Liu LZ, Rojanasakul Y, Wang XR, Jiang BH. Reactive oxygen species regulate angiogenesis and tumor growth through vascular endothelial growth factor. Cancer Res. 2007;67:10823–30.PubMedCrossRef Xia C, Meng Q, Liu LZ, Rojanasakul Y, Wang XR, Jiang BH. Reactive oxygen species regulate angiogenesis and tumor growth through vascular endothelial growth factor. Cancer Res. 2007;67:10823–30.PubMedCrossRef
32.
Zurück zum Zitat Zhong H, Chiles K, Feldser D, Laughner E, Hanrahan C, Georgescu MM, et al. Modulation of hypoxia-inducible factor 1alpha expression by the epidermal growth factor/phosphatidylinositol 3-kinase/PTEN/AKT/FRAP pathway in human prostate cancer cells: implications for tumor angiogenesis and therapeutics. Cancer Res. 2000;60:1541–5.PubMed Zhong H, Chiles K, Feldser D, Laughner E, Hanrahan C, Georgescu MM, et al. Modulation of hypoxia-inducible factor 1alpha expression by the epidermal growth factor/phosphatidylinositol 3-kinase/PTEN/AKT/FRAP pathway in human prostate cancer cells: implications for tumor angiogenesis and therapeutics. Cancer Res. 2000;60:1541–5.PubMed
33.
Zurück zum Zitat Tang J, Wang J, Kong X, Yang J, Guo L, Zheng F, et al. Vascular endothelial growth factor promotes cardiac stem cell migration via the PI3K/Akt pathway. Exp Cell Res. 2009;315:3521–31.PubMedCrossRef Tang J, Wang J, Kong X, Yang J, Guo L, Zheng F, et al. Vascular endothelial growth factor promotes cardiac stem cell migration via the PI3K/Akt pathway. Exp Cell Res. 2009;315:3521–31.PubMedCrossRef
34.
Zurück zum Zitat Kumar B, Koul S, Khandrika L, Meacham RB, Koul HK. Oxidative stress is inherent in prostate cancer cells and is required for aggressive phenotype. Cancer Res. 2008;68:1777–85.PubMedCrossRef Kumar B, Koul S, Khandrika L, Meacham RB, Koul HK. Oxidative stress is inherent in prostate cancer cells and is required for aggressive phenotype. Cancer Res. 2008;68:1777–85.PubMedCrossRef
35.
Zurück zum Zitat Lee JK, Edderkaoui M, Truong P, Ohno I, Jang KT, Berti A, et al. NADPH oxidase promotes pancreatic cancer cell survival via inhibiting JAK2 dephosphorylation by tyrosine phosphatases. Gastroenterology. 2007;133:1637–48.PubMedCrossRef Lee JK, Edderkaoui M, Truong P, Ohno I, Jang KT, Berti A, et al. NADPH oxidase promotes pancreatic cancer cell survival via inhibiting JAK2 dephosphorylation by tyrosine phosphatases. Gastroenterology. 2007;133:1637–48.PubMedCrossRef
36.
Zurück zum Zitat Vaquero EC, Edderkaoui M, Pandol SJ, Gukovsky I, Gukovskaya AS. Reactive oxygen species produced by NAD(P)H oxidase inhibit apoptosis in pancreatic cancer cells. J Biol Chem. 2004;279:34643–54.PubMedCrossRef Vaquero EC, Edderkaoui M, Pandol SJ, Gukovsky I, Gukovskaya AS. Reactive oxygen species produced by NAD(P)H oxidase inhibit apoptosis in pancreatic cancer cells. J Biol Chem. 2004;279:34643–54.PubMedCrossRef
37.
Zurück zum Zitat Shaked Y, Ciarrocchi A, Franco M, Lee CR, Man S, Cheung AM, et al. Therapy-induced acute recruitment of circulating endothelial progenitor cells to tumors. Science. 2006;313:1785–7.PubMedCrossRef Shaked Y, Ciarrocchi A, Franco M, Lee CR, Man S, Cheung AM, et al. Therapy-induced acute recruitment of circulating endothelial progenitor cells to tumors. Science. 2006;313:1785–7.PubMedCrossRef
38.
Zurück zum Zitat Gupta S, Kobayashi S, Phongkitkarun S, Broemeling LD, Kan Z. Effect of transcatheter hepatic arterial embolization on angiogenesis in an animal model. Invest Radiol. 2006;41:516–21.PubMedCrossRef Gupta S, Kobayashi S, Phongkitkarun S, Broemeling LD, Kan Z. Effect of transcatheter hepatic arterial embolization on angiogenesis in an animal model. Invest Radiol. 2006;41:516–21.PubMedCrossRef
39.
Zurück zum Zitat Sergio A, Cristofori C, Cardin R, Pivetta G, Ragazzi R, Baldan A, et al. Transcatheter arterial chemoembolization (TACE) in hepatocellular carcinoma (HCC): the role of angiogenesis and invasiveness. Am J Gastroenterol. 2008;103:914–21.PubMedCrossRef Sergio A, Cristofori C, Cardin R, Pivetta G, Ragazzi R, Baldan A, et al. Transcatheter arterial chemoembolization (TACE) in hepatocellular carcinoma (HCC): the role of angiogenesis and invasiveness. Am J Gastroenterol. 2008;103:914–21.PubMedCrossRef
40.
Zurück zum Zitat Wang B, Xu H, Gao ZQ, Ning HF, Sun YQ, Cao GW. Increased expression of vascular endothelial growth factor in hepatocellular carcinoma after transcatheter arterial chemoembolization. Acta Radiol. 2008;49:523–9.PubMedCrossRef Wang B, Xu H, Gao ZQ, Ning HF, Sun YQ, Cao GW. Increased expression of vascular endothelial growth factor in hepatocellular carcinoma after transcatheter arterial chemoembolization. Acta Radiol. 2008;49:523–9.PubMedCrossRef
41.
Zurück zum Zitat Wu WS. The signaling mechanism of ROS in tumor progression. Cancer Metastasis Rev. 2006;25:695–705.PubMedCrossRef Wu WS. The signaling mechanism of ROS in tumor progression. Cancer Metastasis Rev. 2006;25:695–705.PubMedCrossRef
Metadaten
Titel
Oxidative stress is closely associated with tumor angiogenesis of hepatocellular carcinoma
verfasst von
Masayasu Jo
Taichiro Nishikawa
Tomoki Nakajima
Yoshihisa Okada
Kanji Yamaguchi
Hironori Mitsuyoshi
Kohichiroh Yasui
Masahito Minami
Masaki Iwai
Keizo Kagawa
Yoshito Itoh
Toshikazu Yoshikawa
Publikationsdatum
01.06.2011
Verlag
Springer Japan
Erschienen in
Journal of Gastroenterology / Ausgabe 6/2011
Print ISSN: 0944-1174
Elektronische ISSN: 1435-5922
DOI
https://doi.org/10.1007/s00535-011-0392-z

Weitere Artikel der Ausgabe 6/2011

Journal of Gastroenterology 6/2011 Zur Ausgabe

Leitlinien kompakt für die Innere Medizin

Mit medbee Pocketcards sicher entscheiden.

Seit 2022 gehört die medbee GmbH zum Springer Medizin Verlag

Mehr Lebenszeit mit Abemaciclib bei fortgeschrittenem Brustkrebs?

24.05.2024 Mammakarzinom Nachrichten

In der MONARCHE-3-Studie lebten Frauen mit fortgeschrittenem Hormonrezeptor-positivem, HER2-negativem Brustkrebs länger, wenn sie zusätzlich zu einem nicht steroidalen Aromatasehemmer mit Abemaciclib behandelt wurden; allerdings verfehlte der numerische Zugewinn die statistische Signifikanz.

ADT zur Radiatio nach Prostatektomie: Wenn, dann wohl länger

24.05.2024 Prostatakarzinom Nachrichten

Welchen Nutzen es trägt, wenn die Strahlentherapie nach radikaler Prostatektomie um eine Androgendeprivation ergänzt wird, hat die RADICALS-HD-Studie untersucht. Nun liegen die Ergebnisse vor. Sie sprechen für länger dauernden Hormonentzug.

„Überwältigende“ Evidenz für Tripeltherapie beim metastasierten Prostata-Ca.

22.05.2024 Prostatakarzinom Nachrichten

Patienten mit metastasiertem hormonsensitivem Prostatakarzinom sollten nicht mehr mit einer alleinigen Androgendeprivationstherapie (ADT) behandelt werden, mahnt ein US-Team nach Sichtung der aktuellen Datenlage. Mit einer Tripeltherapie haben die Betroffenen offenbar die besten Überlebenschancen.

So sicher sind Tattoos: Neue Daten zur Risikobewertung

22.05.2024 Melanom Nachrichten

Das größte medizinische Problem bei Tattoos bleiben allergische Reaktionen. Melanome werden dadurch offensichtlich nicht gefördert, die Farbpigmente könnten aber andere Tumoren begünstigen.

Update Innere Medizin

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.