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Cuceu C, Colicchio B, Jeandidier E, Junker S, Plassa F, Shim G, Mika J, Frenzel M, Al Jawhari M, Hempel WM, Kabacik S, Lenain A, Morat L, Girinsky T, Dieterlen A, Polanska J, Badie C, Carde P, M'Kacher R. Erratum: Cuceu, C., et al. Independent Mechanisms Lead to Genomic Instability in Hodgkin Lymphoma: Microsatellite or Chromosomal Instability. Cancers 2018, 10, 233. Cancers (Basel) 2019; 11:cancers11060757. [PMID: 31151278 PMCID: PMC6627774 DOI: 10.3390/cancers11060757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/09/2019] [Indexed: 12/14/2022] Open
Affiliation(s)
- Corina Cuceu
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
| | - Bruno Colicchio
- IRIMAS, Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, 68093 Mulhouse, France.
| | - Eric Jeandidier
- Department of Genetic, Groupe Hospitalier de la Région de Mulhouse Sud-Alsace, 68093 Mulhouse, France.
| | - Steffen Junker
- Institute of Biomedicine, University of Aarhus, DK-8000 Aarhus, Denmark.
| | - François Plassa
- Laboratory of Biochemistry B, Saint Louis Hospital, 75010 Paris, France.
| | - Grace Shim
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
| | - Justyna Mika
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Techology, 44-100 Gliwice, Poland.
| | - Monika Frenzel
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
| | - Mustafa Al Jawhari
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
| | - William M Hempel
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
| | - Sylwia Kabacik
- Biological Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Didcot OX11 ORQ, UK.
| | - Aude Lenain
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
| | - Luc Morat
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
| | - Theodore Girinsky
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, 94805 Villejuif, France.
| | - Alain Dieterlen
- IRIMAS, Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, 68093 Mulhouse, France.
| | - Joanna Polanska
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Techology, 44-100 Gliwice, Poland.
| | - Christophe Badie
- Biological Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Didcot OX11 ORQ, UK.
| | - Patrice Carde
- Department of Medicine, Gustave Roussy Cancer Campus, University Paris Saclay, 94805 Villejuif, France.
| | - Radhia M'Kacher
- Radiobiology and Oncology Laboratory, CEA, iRCM, 92265 Fontenay aux Roses CEDEX, France.
- Cell Environment DNA Damages R&D Oncology Section, 75020 Paris, France.
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Leboeuf C, Ratajczak P, Vérine J, Elbouchtaoui M, Plassa F, Legrès L, Ferreira I, Sandid W, Varna M, Bousquet G, Verneuil L, Janin A. Assessment of chimerism in epithelial cancers in transplanted patients. Pathobiology 2014; 81:114-22. [PMID: 24642582 DOI: 10.1159/000357621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Accepted: 11/28/2013] [Indexed: 11/19/2022] Open
Abstract
Cancer is now the most severe complication in the long term in transplant recipients. As most solid-organ or hematopoietic stem-cell transplantations are allogeneic, chimerism studies can be performed on cancers occurring in recipients. We summarize here the different methods used to study chimerism in cancers developing in allogeneic-transplant recipients, analyze their respective advantages and report the main results obtained from these studies. Chimerism analyses of cancers in transplant recipients require methods suited to tissue samples. In the case of gender-mismatched transplantation, the XY chromosomes can be explored using fluorescent in situ hybridization on whole-tissue sections or Y-sequence-specific PCR after the laser microdissection of tumor cells. For cancers occurring after gender-matched transplantation, laser microdissection of tumor cells enables studies of microsatellite markers and high-resolution melting analysis of mitochondrial DNA on genes with marked polymorphism, provided these are different in the donor and the recipient. The results of different studies address the cancers that develop in both recipients and in transplants. The presence of chimeric cells in these two types of cancer implies an exchange of progenitor/stem-cells between transplant and recipient, and the plasticity of these progenitor/stem-cells contributes to epithelial cancers. The presence of chimeric cells in concomitant cancers and preneoplastic lesions implies that the oncogenesis of these cancers progresses through a multistep process.
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Affiliation(s)
- Christophe Leboeuf
- Inserm, U728-Paris, Université Paris Diderot, Sorbonne Paris Cité Paris, France
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3
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Verneuil L, Varna M, Ratajczak P, Leboeuf C, Plassa F, Elbouchtaoui M, Schneider P, Lebbé C, Peraldi M, Sigaux F, de Thé H, Janin A. Carcinome épidermoïde cutané associé à des cellules tumorales p53 positives mutées dérivant de cellules épithéliales du rein transplanté. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Vitoux D, Mourah S, Kerob D, Verola O, Basset-Seguin N, Baccard M, Schartz N, Ollivaud L, Archimbaud A, Servant JM, Revol M, Toubert ME, Podgorniak MP, Plassa F, Porcher R. Highly Sensitive Multivariable Assay Detection of Melanocytic Differentiation Antigens and Angiogenesis Biomarkers in Sentinel Lymph Nodes With Melanoma Micrometastases. ACTA ACUST UNITED AC 2009; 145:1105-13. [DOI: 10.1001/archdermatol.2009.209] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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5
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Zhao WL, Liu YY, Plassa F, Jin XL, Wang L, Janin A, Shen ZX. [Analysis of overexpression of vascular endothelial growth factor-C in patients with angioimmunoblastic T-cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2007; 28:664-666. [PMID: 18399170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To explore the vascular endothelial growth factor-C (VEGF-C) expression and its clinical significance in malignant lymphoma. METHODS Lymphoma cells were isolated by laser microdissection. VEGF-C expression in lymphoma tissue and microdissected lymphoma cells was measured by realtime quantitative PCR. Meanwhile, vessel ultrastructure was identified by transmission electron microscopy. RESULTS Comparing with that in 8 patients with reactive lymphocyte hyperplasia, VEGF-C was overexpressed in angioimmunoblastic T-cell lymphoma, both in lymphoma tissue (n = 18, P = 0.0020) and in microdissected lymphoma cells (n = 10, P < 0.0001). Increased VEGF-C level was associated with bone marrow infiltration (P = 0.0039), skin involvement (P = 0.0046) and high-risk international prognostic index (P = 0.0302). In VEGF-C overexpressed cases, ultrastructural study showed dystrophic vessels, with swelling endothelial cells and absence of pericytes. CONCLUSION The value of VEGF-C expression might be a biomarker of disease progression in angioimmunoblastic T-cell lymphoma.
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Affiliation(s)
- Wei-li Zhao
- Department of Hematology, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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6
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Azzouzi AR, Turpin E, Crinquette A, Plassa F, Valeri A, Cormier L, Cancel-Tassin G, Fournier G, Mangin P, De Thé H, Cussenot O. 1323: Age Related Changes in Human Prostate are Associated With the FGFR4 ARG388 Allele. J Urol 2004. [DOI: 10.1016/s0022-5347(18)38548-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Bertheau P, Plassa F, Espié M, Turpin E, de Roquancourt A, Marty M, Lerebours F, Beuzard Y, Janin A, de Thé H. Effect of mutated TP53 on response of advanced breast cancers to high-dose chemotherapy. Lancet 2002; 360:852-4. [PMID: 12243922 DOI: 10.1016/s0140-6736(02)09969-5] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
TP53 activation by genotoxic drugs can induce apoptosis or cell-cycle arrest. Thus, whether the gene is mutated or wild type could affect the response of a tumour to chemotherapy. Clinical data are unclear, possibly as a result of heterogeneity of tumours, drugs, methods of assessing response, or TP53 status. We studied 50 non-inflammatory, locally advanced breast cancers that had been treated with high doses of a combination of epirubicin and cyclophosphamide. We noted eight complete responses, which all occurred in the 14 patients with tumours containing mutated TP53 (p<0.0001). In high-grade, advanced breast cancers, inactivation of the TP53 pathway could greatly improve the response to this chemotherapy regimen.
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Affiliation(s)
- P Bertheau
- Service de Pathologie and INSERM ERM 0220, Hôpital Saint-Louis, 1 Ave C, Vellefaux, 75475 Paris, Cedex 10, France
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8
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Rivet J, Bertheau P, Daneshpouy M, Plassa F, Grolet L, Meignin V, Janin A. Microdissection of frozen sections. J Mol Med (Berl) 2001; 78:B24. [PMID: 11043386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- J Rivet
- Department of Pathology, Hospital Saint-Louis, Paris
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9
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Frossard PM, Girodon E, Dawson KP, Ghanem N, Plassa F, Lestringant GG, Goossens M. Identification of cystic fibrosis mutations in the United Arab Emirates. Mutations in brief no. 133. Online. Hum Mutat 2000; 11:412-3. [PMID: 10206682 DOI: 10.1002/(sici)1098-1004(1998)11:5<412::aid-humu15>3.0.co;2-o] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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: 11/11/2022]
Abstract
We have designed a study aimed at identifying the genetic mutations responsible for cystic fibrosis (CF) in the population of the United Arab Emirates. The prevalence of CF in the UAE is at least 1/15,000 live births and the disease is associated with very severe clinical presentations. We have investigated 17 unrelated families. Ten UAE national families were of Bedouin descent: all 15 CF patients, who presented with very severe forms of the disease, were homozygous for a S549R mutation due to a T->G transversion at nucleotide postion 1779. Amongst a distinct population of Baluch origin, CF patients from 6 out of 7 affected families were DF508 homozyotes. Hence, the unique distribution of CF mutations in the United Arab Emirates--two mutations, S549R and DF508, characterize so far 94% of CF families--should allow efficient organizing and delivering of CF carrier screening programmes on the country's relatively limited population size.
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Affiliation(s)
- P M Frossard
- Department of Pathology, Faculty of Medicine and Health Sciences, Al Ain, United Arab Emirates
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10
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Frossard PM, Girodon E, Dawson KP, Ghanem N, Plassa F, Lestringant GG, Goossens M. Identification of cystic fibrosis mutations in the United Arab Emirates. Hum Mutat 1998. [DOI: 10.1002/(sici)1098-1004(1998)11:5<412::aid-humu15>3.3.co;2-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Abstract
In order to know the spectrum of beta-thalassemia alleles and other mutations affecting the beta-globin gene, we analyzed the hemoglobin abnormalities in 24 patients from the Province of Cordoba in Argentina. Molecular screening of samples was performed by the polymerase chain reaction (PCR), using six sets of oligonucleotides to amplify fragments encompassing the whole beta-globin coding region and splice junctions, as well as the promoter and 3' untranslated regions. The altered fragments were determined by denaturing gradient gel electrophoresis (DGGE), and the corresponding mutations were identified by restriction enzyme analysis or by direct sequencing of PCR products. Using this approach, three different beta-thalassemia mutations were detected, codon 39 (C-->T), IVS-1-110 (G-->A), and IVS-1-1 (G-->A), and also the hemoglobin S trait. This is the first report of beta-thalassemia mutations described in Argentina. Our results show that these mutations are similar to those found in Spain and Italy, possibly due to the important Mediterranean migratory stream received in our country, and could be important for prenatal diagnosis of these diseases in Cordoba, Argentina.
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Affiliation(s)
- N W Soria
- Departamento de Quimica Biologica-Centro de Investigaciones en Quimica Biologica de Cordoba, Universidad Nacional de Cordoba, Argentina
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12
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Wajcman H, Girodon E, Promé D, North ML, Plassa F, Duwig I, Kister J, Bergerat JP, Oberling F, Lampert E. Germline mosaicism for an alanine to valine substitution at residue beta 140 in hemoglobin Puttelange, a new variant with high oxygen affinity. Hum Genet 1995; 96:711-6. [PMID: 8522332 DOI: 10.1007/bf00210304] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 01/31/2023]
Abstract
Hb Puttelange [beta 140(H18)Ala-->Val] was found as a de novo mutation in two siblings of a French family suffering from polycythemia. Both parents were phenotypically normal and exclusion of paternity has been ruled out by the study of several polymorphic markers located on different chromosomes. The structural modification of Hb Puttelange was established by reversed-phase HPLC analysis of the tryptic digest of the abnormal chain. The amino acid composition of an abnormal beta T14 peptide revealed that one of the four residues of Ala was replaced by a Val. Tandem mass spectrometry demonstrated that the substitution concerned position beta 140 (H18). This hemoglobin displays an increased oxygen affinity that is responsible for the polycythemia. De novo mutations, as demonstrated again in the case of this variant, have the highest probabilities of detection when they lead to pathological manifestations. They may result either from a somatic mutation in a very early stage of the embryological development of the propositus or may have a parental origin with occurrence of a germline mosaicism. The study of the beta-globin gene indicated that this case of Hb Puttelange probably arose from a mutation affecting a part of the germline of the father, therefore leading to a true recurrence risk.
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Affiliation(s)
- H Wajcman
- INSERM U91, Hôpital Henri Mondor, Créteil, France
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13
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Antonarakis SE, Rossiter JP, Young M, Horst J, de Moerloose P, Sommer SS, Ketterling RP, Kazazian HH, Négrier C, Vinciguerra C, Gitschier J, Goossens M, Girodon E, Ghanem N, Plassa F, Lavergne JM, Vidaud M, Costa JM, Laurian Y, Lin SW, Lin SR, Shen MC, Lillicrap D, Taylor SA, Windsor S, Valleix SV, Nafa K, Sultan Y, Delpech M, Vnencak-Jones CL, Phillips JA, Ljung RC, Koumbarelis E, Gialeraki A, Mandalaki T, Jenkins PV, Collins PW, Pasi KJ, Goodeve A, Peake I, Preston FE, Schwartz M, Scheibel E, Ingerslev J, Cooper DN, Millar DS, Kakkar VV, Giannelli F, Naylor JA, Tizzano EF, Baiget M, Domenech M, Altisent C, Tusell J, Beneyto M, Lorenzo JI, Gaucher C, Mazurier C, Peerlinck K, Matthijs G, Cassiman JJ, Vermylen J, Mori PG, Acquila M, Caprino D, Inaba H. Factor VIII gene inversions in severe hemophilia A: results of an international consortium study. Blood 1995; 86:2206-12. [PMID: 7662970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Twenty-two molecular diagnostic laboratories from 14 countries participated in a consortium study to estimate the impact of Factor VIII gene inversions in severe hemophilia A. A total of 2,093 patients with severe hemophilia A were studied; of those, 740 (35%) had a type 1 (distal) factor VIII inversion, and 140 (7%) showed a type 2 (proximal) inversion. In 25 cases, the molecular analysis showed additional abnormal or polymorphic patterns. Ninety-eight percent of 532 mothers of patients with inversions were carriers of the abnormal factor VIII gene; when only mothers of nonfamilial cases were studied, 9 de novo inversions in maternal germ cells were observed among 225 cases (approximately 1 de novo maternal origin of the inversion in 25 mothers of sporadic cases). When the maternal grandparental origin was examined, the inversions occurred de novo in male germ cells in 69 cases and female germ cells in 1 case. The presence of factor VIII inversions is not a major predisposing factor for the development of factor VIII inhibitors; however, slightly more patients with severe hemophilia A and factor VIII inversions develop inhibitors (130 of 642 [20%]) than patients with severe hemophilia A without inversions (131 of 821 [16%]).
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Cohen-Solal M, Valentin C, Plassa F, Guillemin G, Danze F, Jaisson F, Rosa R. Identification of new mutations in two phosphoglycerate kinase (PGK) variants expressing different clinical syndromes: PGK Créteil and PGK Amiens. Blood 1994; 84:898-903. [PMID: 8043870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Phosphoglycerate kinase (PGK) deficiency is generally associated with chronic hemolytic anemia, although it can be accompanied by either mental retardation or muscular disease. Genomic DNAs of two PGK-deficient patients previously described in France were sequenced directly after polymerase chain reaction amplification. The PGK Créteil variant arises from a G-->A nucleotide interchange at position 1022 in cDNA (exon 9), resulting in amino acid substitution 314 Asp-->Asn in the C-terminal domain, which contains the nucleotide binding site. It is associated with rhabdomyolysis crises but not with hemolysis or mental retardation. In the other case, which is associated with chronic hemolytic anemia and mental retardation (PGK Amiens), an A-->T nucleotide interchange was found at position 571 in cDNA (exon 5); this leads to amino acid substitution 163 Asp-->Val in the N-terminal domain, which contains the catalytic site for phosphoglycerate binding. These results corroborate the kinetic data observed. In the two cases, the mutations are distinct from others previously reported and no significant relationship could be observed between the location of the amino acid substitution and its clinical consequences.
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Affiliation(s)
- M Cohen-Solal
- Unité INSERM U91, Hôpital Henri Mondor, Créteil, France
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15
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Muniz ES, Plassa F, Amselem S, Goossens M, Vernant JP. Molecular analysis of polymorphic loci to study chimerism after allogeneic bone marrow transplantation. Heteroduplex analysis in denaturing gradient gel electrophoresis: a new approach to detecting residual host cells. Transplantation 1994; 57:451-6. [PMID: 8108882 DOI: 10.1097/00007890-199402150-00024] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [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: 01/28/2023]
Abstract
Since both donor/recipient origin of hematopoietic cells and the proportion of residual host cells influence the outcome of BMT, we performed this study to design a rapid and efficient strategy for chimerism analysis. Using the polymerase chain reaction, we analyzed the informativity and sensitivity of two kinds of polymorphism in 35 HLA-identical sibling pairs: four variable number of tandem repeats (VNTR) systems and the frameworks (FW) of the beta-globin gene. The latter polymorphisms were analyzed by means of denaturing gradient gel electrophoresis, a method that identifies heterozygosity by the presence of heteroduplexes. All the siblings were found to be informative for at least one polymorphic system. In addition, 34 of the 35 sibling pairs (97%) bore at least one VNTR or FW system which permitted the detection of the minor population (i.e., the first sibling's DNA contained an allele that was absent from the second sibling's DNA). The VNTR- and FW-based methods were highly sensitive, being able to reveal minor populations representing as little as 1% and 5% of total DNA, respectively. The value of the beta-globin gene FW analysis lies in the detection of additional heteroduplexes, which reflect genotypic differences between siblings' DNA. We describe the experimental conditions required to detect the minor DNA population in virtually all cases. As direct evidence of mixed chimerism can be obtained from denaturing gradient gel electrophoresis analysis of any highly informative polymorphic system, this method can be applied to chimerism analysis.
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Affiliation(s)
- E S Muniz
- Unité de Greffe de Moelle, Inserm U91, Hôpital Henri Mondor, Créteil, France
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16
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Cherqui D, Duvoux C, Plassa F, Gaulard P, Julien M, Fagniez PL, Dhumeaux D, Goossens M, Farcet JP. Lymphoproliferative disorder of donor origin in a liver transplant recipient: complete remission after drastic reduction of immunosuppression without graft loss. Transplantation 1993; 56:1023-6. [PMID: 8212183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- D Cherqui
- Department of General and Digestive Surgery, Hôpital Henri Mondor-Faculté de Médecine de Créteil, France
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17
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Ghanem N, Vidaud M, Plassa F, Martin J, Goossens M. Direct carrier detection and prenatal diagnosis of Sicilian and Spanish (delta beta)zero-thalassemias. Mol Cell Probes 1993; 7:167-8. [PMID: 8321255 DOI: 10.1006/mcpr.1993.1024] [Citation(s) in RCA: 2] [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: 01/29/2023]
Abstract
We describe a direct method for detection of the Spanish and Sicilian (delta beta)zero-thalassemias. This method is based on the use of the deletion-junction sequences to design specific PCR primers. It permits a rapid screening of heterozygotes in populations at risk and provides a useful tool for early prenatal diagnosis of these forms of thalassemia.
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Affiliation(s)
- N Ghanem
- Laboratoire de Génétique Moléculaire, INSERM U91, Hôpital Henri Mondor, Créteil, France
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18
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Fanen P, Ghanem N, Vidaud M, Besmond C, Martin J, Costes B, Plassa F, Goossens M. Molecular characterization of cystic fibrosis: 16 novel mutations identified by analysis of the whole cystic fibrosis conductance transmembrane regulator (CFTR) coding regions and splice site junctions. Genomics 1992; 13:770-6. [PMID: 1379210 DOI: 10.1016/0888-7543(92)90152-i] [Citation(s) in RCA: 179] [Impact Index Per Article: 5.6] [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: 12/26/2022]
Abstract
The spectrum of cystic fibrosis (CF) mutations was determined in 105 patients by using denaturing gradient gel electrophoresis to screen the entire coding regions and adjacent cystic fibrosis transmembrane conductance regulator (CFTR) gene sequences. The nucleotide substitutions detected included 16 novel mutations, 11 previously described defects, and 11 nucleotide sequence polymorphisms. Among the novel mutations, 6 were of the missense type, 4 were nonsense mutations, 4 were frameshift defects, and 2 affected mRNA splicing. The mutations involved all the CFTR domains, including the R domain. Of the 61 non-delta F508 CF chromosomes studied, mutations were found on 36 (59%), raising the proportion of CF alleles characterized in our patient cohort to 88%. Given the efficacy of the screening method used, the remaining uncharacterized mutations probably lie in DNA sequences outside the regions studied, e.g., upstream-promoter sequences, the large introns, or putative regulatory regions. Our results further document the highly heterogeneous nature of CF mutations and provide the information required for DNA-based genetic testing.
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Affiliation(s)
- P Fanen
- Laboratoire de Génétique Moléculaire, INSERM U91, Hôpital Henri Mondor, Créteil, France
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Ghanem N, Girodon E, Vidaud M, Martin J, Fanen P, Plassa F, Goossens M. A comprehensive scanning method for rapid detection of beta-globin gene mutations and polymorphisms. Hum Mutat 1992; 1:229-39. [PMID: 1301930 DOI: 10.1002/humu.1380010310] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.4] [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: 12/26/2022]
Abstract
We describe a scanning procedure for the detection of beta-globin gene mutations and the prenatal diagnosis of beta-thalassemias. The method is based on the combined use of PCR and denaturing gradient gel electrophoresis (DGGE) of six amplified fragments encompassing the whole beta-globin coding region and splice junctions, as well as the promoter and 3' untranslated regions. The whole beta-globin gene can be rapidly scanned for the presence of deleterious mutations. The proposed diagnostic strategy provides a major improvement over current approaches to beta-globin gene analysis in both research and clinical laboratories, especially those which analyse DNA samples from individuals belonging to various ethnic or population groups. The use of this procedure has enabled us to detect six novel sequence changes in the beta-globin gene, including two deleterious mutations and four polymorphisms.
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Affiliation(s)
- N Ghanem
- Laboratoire de Génétique Moléculaire, INSERM U91, CHU Henri Mondor, Créteil, France
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Rouyer-Fessard P, Plassa F, Blouquit Y, Vidaud M, Varnavides L, Mibashan RS, Bellingham A, Beuzard Y. Prenatal diagnosis of haemoglobinopathies by ion exchange HPLC of haemoglobins. Prenat Diagn 1989; 9:19-26. [PMID: 2473467 DOI: 10.1002/pd.1970090104] [Citation(s) in RCA: 5] [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: 01/01/2023]
Abstract
A new method, the cation exchange HPLC of haemoglobins, has been compared to the classical carboxymethyl cellulose (CMC) chromatography of globin chains for the prenatal diagnosis of beta thalassaemia and sickle cell disease. The two methods correlated highly. The HPLC procedure can use two independent and reliable means--optical density at 405 nm and radioactivity to determine the adult Hb/HbF+Fac ratio. The diagnosis is obtained in 15 min by cation exchange HPLC.
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Affiliation(s)
- P Rouyer-Fessard
- INSERM U91, Laboratory of Clinical Biochemistry, Hôpital Henri Mondor, Creteil, France
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