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Yang J, Bogni A, Cheng C, Bleibel WK, Cai X, Fan Y, Yang W, Rocha JCC, Pei D, Liu W, Dolan ME, Pui CH, Relling MV. Etoposide sensitivity does not predict MLL rearrangements or risk of therapy-related acute myeloid leukemia. Clin Pharmacol Ther 2008; 84:691-7. [PMID: 18509329 DOI: 10.1038/clpt.2008.86] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Therapy-related acute myeloid leukemia (t-AML) caused by MLL rearrangements (rMLL) can arise from topoisomerase II agents. However, whether rMLL-related leukemogenesis is inextricably linked to drug cytotoxicity remains controversial. We therefore compared (i) rMLL in children with acute lymphoblastic leukemia (ALL) who developed t-AML and those who did not, (ii) epipodophyllotoxin toxicity in patients with t-AML and in controls, and (iii) rMLL in cells sensitive to etoposide and in those resistant to etoposide. In children with ALL, rMLL appeared to be more frequent in children who developed t-AML than in those who did not (seven pairs, P = 0.04), although independent of the cumulative etoposide dose (P = 0.5). Similarly, the frequency of epipodophyllotoxin-related toxicities did not differ between patients with t-AML and controls (26 pairs, P > 0.17). Moreover, in 25 cell lines, etoposide-induced MLL fusions did not differ in sensitive vs. resistant lines at equitoxic concentrations (P = 0.65). Together, these results indicate that epipodophyllotoxin-mediated leukemogenesis is not directly linked to drug cytotoxicity.
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Affiliation(s)
- J Yang
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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Palmero EI, Caleffi M, Vargas FR, Rocha JCC, Giugliani R, Kalakun L, Schuler-Faccini L, Ashton-Prolla P. Genetic counseling and cancer risk perception in Brazilian patients at-risk for hereditary breast and ovarian cancer. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.9698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- E. I. Palmero
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
| | - M. Caleffi
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
| | - F. R. Vargas
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
| | - J. C. C. Rocha
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
| | - R. Giugliani
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
| | - L. Kalakun
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
| | - L. Schuler-Faccini
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
| | - P. Ashton-Prolla
- UFRGS, Porto Alegre RS, Brazil; Hospital Moinhos de Vento, Complexo Hosp Sta Casa, Porto Alegre RS, Brazil; INCa, Rio de Janeiro, Brazil; Hospital A.C. Camargo, São Paulo, Brazil
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Zanoteli E, Rocha JCC, Narumia LK, Fireman MAT, Moura LS, Oliveira ASB, Gabbai AA, Fukuda Y, Kinoshita M, Toda T. Fukuyama-type congenital muscular dystrophy: a case report in the Japanese population living in Brazil. Acta Neurol Scand 2002; 106:117-21. [PMID: 12100373 DOI: 10.1034/j.1600-0404.2002.01318.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
INTRODUCTION We present herein clinical, histological and magnetic resonance imaging (MRI) findings in a patient with Fukuyama-type congenital muscular dystrophy (FCMD). He is the first case report in the Japanese population living in Brazil. CASE REPORT The child presented with neonatal hypotonia, delayed motor abilities and speech, seizures, cerebral and cerebellar gyrus abnormalities with signal intensity change in the white matter by MRI, high serum level of creatinephosphokinase (CK), and dystrophic skeletal muscle with normal merosin, alpha-sarcoglycan and dystrophin expression. The fukutin gene study showed one founder 3-kb retrotransposal insertion in the 3'-non-coding region, and in the other allele no mutation was detected after screening all exons and flanking introns by sequencing. DISCUSSION This case report emphasizes the importance to consider FCMD in Japanese people living in other countries.
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Affiliation(s)
- E Zanoteli
- Department of Neurology, Universidade Federal de São Paulo, Brazil.
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