Publications (21)128.19 Total impact
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Article: Functional SNPs within the Intron 1 of the PROP1 Gene Contribute to Combined Growth Hormone Deficiency (CPHD).
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ABSTRACT: Context: Mutations within the PROP1 gene represent one of the main causes of familial combined pituitary hormone deficiency (CPHD). However, most of the cases are sporadic with an unknown genetic cause. Objective: The aim of this study was the search for low penetrance variations within and around a conserved regulatory element in the intron 1 of PROP1, contributing to a multifactorial form of the disease in sporadic patients. Methods and Patients: A fragment of 570 bp encompassing the conserved region was sequenced in 107 CPHD patients and 294 controls, and an association study was performed with the four identified variants, namely c.109+435G>A (rs73346254), c.109+463C>T (rs4498267), c.109+768C>G (rs4431364), and c.109+915_917ins/delTAG (rs148607624). The functional role of the associated polymorphisms was evaluated by luciferase reporter gene expression analyses and EMSA. Results: A statistically significant increased frequency was observed in the patients for rs73346254A (P = 5 × 10(-4)) and rs148607624delTAG (P = 0.01) alleles. Among all the possible allele combinations, only the haplotype bearing both risk alleles showed a significantly higher frequency in the patients vs. controls (P = 4.7 × 10(-4)) and conferred a carrier risk of 4.19 (P = 1.2 × 10(-4)). This haplotype determined a significant decrease of the luciferase activity in comparison with a basal promoter and the other allelic combinations in GH4C and MCF7 cells (P = 4.6 × 10(-6); P = 5.5 × 10(-4), respectively). The EMSA showed a differential affinity for nuclear proteins for the alternative alleles of the two associated variations. Conclusions: Variations with a functional significance conferring susceptibility to CPHD have been identified in the PROP1 gene, indicating a multifactorial origin of this disorder in sporadic cases.The Journal of clinical endocrinology and metabolism 06/2012; 97(9):E1791-7. · 6.50 Impact Factor -
Article: Association of the (CA)n repeat polymorphism of insulin-like growth factor-I and -202 A/C IGF-binding protein-3 promoter polymorphism with adult height in patients with severe growth hormone deficiency.
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ABSTRACT: A number of mathematical models for predicting growth and final height outcome have been proposed to enable the clinician to 'individualize' growth-promoting treatment. However, despite optimizing these models, many patients with isolated growth hormone deficiency (IGHD) do not reach their target height. The aim of this study was to analyse the impact of polymorphic genotypes [CA repeat promoter polymorphism of insulin-like growth factor-I (IGF-I) and the -202 A/C promoter polymorphism of IGF-Binding Protein-3 (IGFBP-3)] on variable growth factors as well as final height in severe IGHD following GH treatment. DESIGN, PATIENTS AND CONTROLS: One hundred seventy eight (IGF-I) and 167 (IGFBP-3) subjects with severe growth retardation because of IGHD were studied. In addition, the various genotypes were also studied in a healthy control group of 211 subjects. The frequency of the individual IGF-I (CA)(n) repeats ranging from 10 to 24, with the most frequent allele containing CA(19), was similar in controls and in IGHD subjects. However, in controls, the pooled CA(19) and CA(20) as well as -202 A IGFBP-3 alleles were significantly (P < 0·01 and P < 0·001) more common in the taller [≥2 to 0 standard deviation score (SDS)] when compared with the shorter subgroup (<0 to ≤-2 SDS). Overall, the effect of recombinant human growth hormone (rhGH) replacement did not reveal any difference between the various genotypes in terms of final height. Independent of their genotype, all subjects showed a slightly lower adult height SDS compared with midparental height SDS. Our results indicate that in patients with severe IGHD, although the various IGF-I and IGFBP-3 genotypes may play a role in GH responsiveness, there was no effect on final height.Clinical Endocrinology 10/2011; 76(5):683-90. · 3.17 Impact Factor -
Article: A novel HESX1 splice mutation causes isolated GH deficiency by interfering with mRNA processing.
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ABSTRACT: Mutations in HESX1 represent a rare cause of GH deficiency (GHD) associated with a broad spectrum of other anomalies. We searched for causative mutations in a cohort of 244 Italian patients affected by combined and isolated GHD (IGHD). The HESX1 gene-coding region and exon-intron boundaries were screened by denaturing HPLC scanning. A novel mutation adjacent to the invariant donor splice site of intron 2 (c.357+3G>A) was identified at the heterozygous state in an IGHD patient. The in vitro and in vivo mRNA analysis of the wild-type HESX1 allele revealed the presence of the whole cDNA and two isoforms lacking exon 2 and exons 2-3 respectively. The mutant HESX1 allele yielded only two splicing products, the whole cDNA and the cDNA missing exons 2-3, whereas the mRNA lacking exon 2 was absent. An in vitro assay demonstrated that the exon 2-deleted mRNA, predicting a prematurely truncated protein, is subjected to nonsense-mediated mRNA decay (NMD). The c.357+3G>A mutation prevents the generation of one of the alternative isoforms normally produced by the wild-type allele, predicting a truncated HESX1 protein. The mutation is likely to cause IGHD in the heterozygous patient by interfering with the downregulation of HESX1 expression mediated by alternative splicing and NMD. Our results open new insight into the mechanism of HESX1 regulation suggesting that the coupling of alternative splicing and NMD might play a fundamental role in directing the HESX1 expression, and that the alteration of this process might lead to severe consequences.European Journal of Endocrinology 02/2011; 164(5):705-13. · 3.42 Impact Factor -
Article: The case of the solitary sick kidney.
Kidney International 02/2010; 77(3):257-8; author reply 258. · 6.61 Impact Factor -
Article: Immunoproteasome LMP2 60HH variant alters MBP epitope generation and reduces the risk to develop multiple sclerosis in Italian female population.
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ABSTRACT: Albeit several studies pointed out the pivotal role that CD4+T cells have in Multiple Sclerosis, the CD8+ T cells involvement in the pathology is still in its early phases of investigation. Proteasome degradation is the key step in the production of MHC class I-restricted epitopes and therefore its activity could be an important element in the activation and regulation of autoreactive CD8+ T cells in Multiple Sclerosis. Immunoproteasomes and PA28-alphabeta regulator are present in MS affected brain area and accumulated in plaques. They are expressed in cell types supposed to be involved in MS development such as neurons, endothelial cells, oligodendrocytes, macrophages/macroglia and lymphocytes. Furthermore, in a genetic study on 1262 Italian MS cases and 845 controls we observed that HLA-A*02+ female subjects carrying the immunoproteasome LMP2 codon 60HH variant have a reduced risk to develop MS. Accordingly, immunoproteasomes carrying the LMP2 60H allele produce in vitro a lower amount of the HLA-A*0201 restricted immunodominant epitope MBP(111-119). The immunoproteasome LMP2 60HH variant reduces the risk to develop MS amongst Italian HLA-A*02+ females. We propose that such an effect is mediated by the altered proteasome-dependent production of a specific MBP epitope presented on the MHC class I. Our observations thereby support the hypothesis of an involvement of immunoproteasome in the MS pathogenesis.PLoS ONE 01/2010; 5(2):e9287. · 4.09 Impact Factor -
Article: A recurrent signal peptide mutation in the growth hormone releasing hormone receptor with defective translocation to the cell surface and isolated growth hormone deficiency.
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ABSTRACT: Mutations in the GHRH receptor (GHRHR) have been detected in the familial type-IB isolated GH deficiency (IGHD-IB) inherited as an autosomal recessive disorder and characterized by a low but detectable serum GH level and good response to substitutive GH therapy. The aim of our study was the identification of mutations in sporadic patients with a IGHD-IB phenotype. The GHRHR gene was systematically screened by DHPLC in 134 IGHD patients with no family history of the disorder or declared parental consanguinity. We identified a novel variation, Val10Gly, within the signal peptide at the heterozygous state in three patients and in one of 1084 controls (P = 0.004), suggesting that it might contribute to IGHD. The functional analysis showed that the signal peptide is not cleaved from the mutant GHRHR, which in turn is not translocated to the cellular surface, demonstrating that 10Gly drastically affects the receptor correct processing. Because 10Gly was also present in normal-stature relatives of the patients as well as in a control, it is likely that it exerts its effects in the context of other genetic and environmental susceptibility factors. At difference from previous papers reporting GHRHR mutations in familial cases with a clear recessive mode of inheritance, our study was conducted on a large sample of sporadic patients and allowed to discover a novel mechanism of the disease caused by a recurrent dominant mutation in the GHRHR signal peptide associated with incomplete penetrance.The Journal of clinical endocrinology and metabolism 08/2009; 94(10):3939-47. · 6.50 Impact Factor -
Article: A novel recessive splicing mutation in the POU1F1 gene causing combined pituitary hormone deficiency.
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ABSTRACT: Mutations in the gene encoding the pituitary transcription factor POU1F1 (Pit-1, pituitary transcription factor-1) have been described in combined pituitary hormone deficiency (CPHD). The aim of this study was the characterisation of the molecular defect causing CPHD in a patient born to consanguineous parents. The case of a 12.5-yr-old girl presenting with severe growth failure at diagnosis (-3 SD score at 3 months) and deficiency of GH, PRL, and TSH was investigated for the presence of POU1F1 gene mutations by denaturing high performance liquid chromatography analysis. A novel mutation adjacent to the IVS2 splicing acceptor site (IVS2-3insA) was identified in the patient at the homozygous state. Analysis of patient's lymphocyte mRNA and an in vitro splicing assay revealed the presence of 2 aberrant splicing products: a) deletion of the first 71 nucleotides of exon 3, altering the open reading frame and generating a premature stop codon, b) total exon 3 skipping resulting in an in frame deleted mRNA encoding a putative protein lacking part of the transactivation domain and of the POUspecific homeodomain. Notably, the patient's relatives heterozygous for the mutation had PRL levels under the normal range with no evident clinical symptoms. The IVS2- 3insAmutation, responsible for CPHD at the homozygous state, causes the presence of 2 aberrant splicing products encoding non-functional products. In the heterozygotes one normal allele might not guarantee a complete pituitary function.Journal of endocrinological investigation 06/2009; 32(8):653-8. · 1.57 Impact Factor -
Article: A functional common polymorphism in the vitamin D-responsive element of the GH1 promoter contributes to isolated growth hormone deficiency.
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ABSTRACT: Causal mutations have been detected only in a minority of isolated GH deficiency (IGHD) patients. Idiopathic IGHD might be the result of the interaction between several low-penetrance genetic factors and the environment. The aim of this study was to test the contribution to IGHD of genetic variations in the GH1 gene regulatory regions. A case-control association study was performed including 118 sporadic IGHD patients with a nonsevere phenotype (height -4/-1 sd score and partial GH deficiency) and two control groups, normal stature (n=200) and short-stature individuals with normal GH secretion (n=113). Seven single-nucleotide polymorphisms in the GH1 promoter, one in the IVS4 region, and two in the locus control region were analyzed. The -57T allele within the vitamin D-responsive element showed a positive significant association when comparing patients with normal (P=0.006) or short stature (P=0.0011) controls. The genotype -57TT showed an odds ratio of 2.93 (1.44-5.99) and 2.99 (1.42-6.31), respectively. The functional relevance of the -57 variation was demonstrated by the luciferase assay in the presence of vitamin D. The vitamin D-induced inhibition of luciferase activity was significantly (P=0.012) stronger for the promoter haplotype carrying the associated variation -57T [haplotype #1 (hp#1)] with respect to hp#2, bearing -57G. Replacement of the T with a G at -57 on hp#1 abolished the repression, demonstrating that the T at position -57 is necessary to determine the greater vitamin D-induced inhibitory effect of hp#1. EMSA experiments showed a different band-shift pattern of the T and G sequences. The common -57G-->T polymorphism contributes to IGHD susceptibility, indicating that it may have a multifactorial etiology.Journal of Clinical Endocrinology & Metabolism 04/2008; 93(3):1005-12. · 6.50 Impact Factor -
Article: ICOS gene haplotypes correlate with IL10 secretion and multiple sclerosis evolution.
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ABSTRACT: Human ICOS is a T cell costimulatory molecule supporting IL10 secretion. A pilot study investigating variations of the ICOS gene 3'UTR detected 8 polymorphisms forming three haplotypes (A, B, C). Haplotype-A and -C displayed the highest difference. Activated T cells from healthy AA homozygotes expressed significantly less ICOS and secreted more IL10 than AC heterozygotes, whereas AB heterozygotes displayed intermediate levels. Analysis of 441 multiple sclerosis patients and 793 controls showed that frequency of AA homozygosity was significantly lower in MS patients with relapsing-remitting onset (N=416) than in controls (OR=0.70). Moreover, AA patients with relapsing-remitting onset had lower relapse rate and multiple sclerosis severity score than non-AA patients.Journal of Neuroimmunology 06/2007; 186(1-2):193-8. · 2.96 Impact Factor -
Article: A novel deletion in the GH1 gene including the IVS3 branch site responsible for autosomal dominant isolated growth hormone deficiency.
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ABSTRACT: The majority of mutations responsible for isolated GH type II deficiency (IGHD II) lead to dominant negative deleteriously increased levels of the GH1 exon 3 skipped transcripts. The aim of this study was the characterization of the molecular defect causing a familial case of IGHD II. A 2-yr-old child and her mother with severe growth failure at diagnosis (-5.8 and -6.9 sd score, respectively) and IGHD were investigated for the presence of GH1 mutations. We identified a novel 22-bp deletion in IVS3 (IVS3 del+56-77) removing the putative branch point sequence (BPS). Analysis of patients' lymphocyte mRNA showed an excess exon 3 skipping. The mutated allele transfected into rat pituitary cells produced four differently spliced products: the exon 3 skipped mRNA as the main product and lower amounts of the full-length cDNA and of two novel mRNA aberrant isoforms, one with the first 86 bases of exon 4 deleted and the other lacking the entire exon 4. A mutagenized construct lacking exclusively the 7 bp of the BPS only generated the exon 4 skipped and the full-length isoforms. The presence of the full-length transcript in the absence of the canonical BPS points to an alternative BPS in IVS3. The IVS3 del+56-77 mutation, causing IGHD II in this family, has two separate effects on mRNA processing: 1) exon 3 skipping, analogous to most described cases of IGHD II, an effect likely caused by the reduction in size of the IVS3, and 2) partial or total exon 4 skipping, as a result of the removal of the BPS.Journal of Clinical Endocrinology & Metabolism 04/2006; 91(3):980-6. · 6.50 Impact Factor -
Article: A variation in a Pit-1 site in the growth hormone gene (GH1) promoter induces a differential transcriptional activity.
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ABSTRACT: The proximal promoter of the human growth hormone gene (GH1) is highly polymorphic. We tested if promoter haplotypes differing at possibly functional sites, namely -278T/G (in the NF1 binding site), -75A/G (in the proximal Pit-1 binding site) and -57G/T (in the VDR binding site), induced a different luciferase activity when transfected in a rat pituitary cell line. The presence of a G instead of an A at position -75 induced a more than two-fold reduced activity (p<0.0001). In accordance with this findings the electrophoretic mobility shift assay demonstrated a reduced affinity of the -75G for the pituitary transcription factor Pit-1. Despite the strong effect of this polymorphism in vitro, the -75G variation was not associated to an impairment of the GH secretion in vivo.Molecular and Cellular Endocrinology 04/2006; 249(1-2):51-7. · 4.19 Impact Factor -
Article: Osteopontin gene haplotypes correlate with multiple sclerosis development and progression.
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ABSTRACT: Osteopontin (OPN) is an inflammatory cytokine highly expressed in multiple sclerosis (MS) plaques. In a previous work, we showed that four OPN polymorphisms form three haplotypes (A, B, and C) and that homozygotes for haplotype-A display lower OPN levels than non-AA subjects. In this work, we evaluated the distribution of these OPN haplotypes in 425 MS patients and 688 controls. Haplotype-A homozygotes had about 1.5 lower risk of developing MS than non-AA subjects. Clinical analysis of 288 patients showed that AA patients displayed slower switching from a relapsing remitting to a secondary progressive form and milder disease with slower evolution of disability. MS patients displayed increased OPN serum levels, which were partly due to the increased frequency of non-AA subjects. Moreover in AA patients, OPN levels were higher than in AA controls and similar to those found in both non-AA patients and controls, which suggests a role of the activated immune response. These data suggest that OPN genotypes may influence MS development and progression due to their influence on OPN levels.Journal of Neuroimmunology 07/2005; 163(1-2):172-8. · 2.96 Impact Factor -
Article: Maternal effect in multiple sclerosis.
The Lancet 06/2004; 363(9423):1748-9. · 38.28 Impact Factor -
Article: High levels of osteopontin associated with polymorphisms in its gene are a risk factor for development of autoimmunity/lymphoproliferation.
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ABSTRACT: The autoimmune/lymphoproliferative syndrome (ALPS) displays defective function of Fas, autoimmunities, lymphadenopathy/splenomegaly, and expansion of CD4/CD8 double-negative (DN) T cells. Dianzani autoimmune/lymphoproliferative disease (DALD) is an ALPS variant lacking DN cells. Both forms have been ascribed to inherited mutations hitting the Fas system but other factors may be involved. A pilot cDNA array analysis on a DALD patient detected overexpression of the cytokine osteopontin (OPN). This observation was confirmed by enzyme-linked immunosorbent assay (ELISA) detection of higher OPN serum levels in DALD patients (n = 25) than in controls (n = 50). Analysis of the OPN cDNA identified 4 polymorphisms forming 3 haplotypes (A, B, and C). Their overall distribution and genotypic combinations were different in patients (N = 26) and controls (N = 158) (P <.01). Subjects carrying haplotype B and/or C had an 8-fold higher risk of developing DALD than haplotype A homozygotes. Several data suggest that these haplotypes influence OPN levels: (1) in DALD families, high levels cosegregated with haplotype B or C; (2) in healthy controls, haplotype B or C carriers displayed higher levels than haplotype A homozygotes; and (3) in AB and AC heterozygotes, mRNA for haplotype B or C was more abundant than that for haplotype A. In vitro, exogenous OPN decreased activation-induced T-cell death, which suggests that high OPN levels are involved in the apoptosis defect.Blood 02/2004; 103(4):1376-82. · 9.90 Impact Factor -
Article: A whole genome screen for linkage disequilibrium in multiple sclerosis performed in a continental Italian population.
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ABSTRACT: We have systematically screened the genome for evidence of linkage disequilibrium (LD) with multiple sclerosis (MS) by typing 6000 microsatellite markers in case-control and family based (AFBAC) cohorts from the Italian population. DNA pooling was used to reduce the genotyping effort involved. Four DNA pools were considered: cases (224 Italian MS patients), controls (231 healthy Italians), index (185 index cases from trio families) and parents (the 370 parents of the patient included in the Index pool), respectively. After refining analysis of the most promising 14 markers to emerge from this screening process, only marker D2S367 retained evidence for association.Journal of Neuroimmunology 11/2003; 143(1-2):97-100. · 2.96 Impact Factor -
Article: CD45 and multiple sclerosis: the exon 4 C77G polymorphism (additional studies and meta-analysis) and new markers.
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ABSTRACT: We re-evaluated the association with multiple sclerosis (MS) of the C77G splicing regulatory variation in the CD45 gene and screened for new mutations the three alternatively spliced exons (#4, 5 and 6). No association with C77G was detected in two groups of patients (total=448) and controls (total=559) from Northern and Southern Italy. When excluding the first published study indicating a positive association, a meta-analysis of the five further studies conducted to date (including the present one) led to a non-significant combined odds ratio (OR) of 1.11. None of the four newly identified nucleotide substitutions, namely C77T (Pro59Pro) in exon 4, G69C (Asp121His) in exon 5, T127A (Ile187Asn) and A138G (Thr191Ala) in exon 6, was significantly associated to MS.Journal of Neuroimmunology 08/2003; 140(1-2):216-21. · 2.96 Impact Factor -
Article: Prolactin and prolactin receptor gene polymorphisms in multiple sclerosis and systemic lupus erythematosus.
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ABSTRACT: Genes encoding for prolactin (PRL) and its receptor (PRLR) are possible candidates for multiple sclerosis (MS) and systemic lupus erythematosus (SLE) susceptibility. In fact: (1) a prolactin secretion dysfunction has been described in several autoimmune diseases including SLE and MS and their animal models; (2) both PRL and PRLR are structurally related to members of the cytokine/hematopoietin family and have a role in the regulation of the immune response; and (3) both PRL and PRLR genes map in genomic regions that showed linkage with autoimmunity. Prolactin maps on chromosome 6p, about 11-kb telomeric to HLA-DRB1 and PRLR in 5p12-13, which revealed evidence of linkage with MS in different populations. To evaluate a possible role of these two genes in SLE and MS we performed an association study of 19 PRL and PRLR single nucleotide polymorphisms (SNPs). These were directly searched by DHPLC in a panel of SLE and MS patients and selected from databases and the literature. The SNP allele frequencies were determined on patient and control DNA pools by primer-extension genotyping and HPLC analysis. Moreover a panel of HLA typed SLE and control individuals were individually genotyped for the PRL G-1149T polymorphism previously described to be associated with SLE. No statistically significant difference in the allele distribution was observed for any of the tested variations.Human Immunology 03/2003; 64(2):274-84. · 2.84 Impact Factor -
Article: IL12B polymorphism and type 1 diabetes in the Italian population: a case-control study.
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ABSTRACT: A polymorphism in the interleukin 12B gene was recently reported to be strongly associated with type 1 diabetes in 422 Australian and British families. We analyzed the same polymorphism in 470 Italian type 1 diabetic patients and 544 matched control subjects and found no evidence of association with the disease.Diabetes 06/2002; 51(5):1649-50. · 8.29 Impact Factor -
Article: Identification of single nucleotide variations in the coding and regulatory regions of the myelin-associated glycoprotein gene and study of their association with multiple sclerosis.
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ABSTRACT: The myelin-associated glycoprotein (MAG) gene is an appealing candidate in the 19q13 Multiple Sclerosis (MS) candidate region. Using denaturing high performance liquid chromatography (DHPLC), we identified 14 single nucleotide polymorphisms (SNPs) in MAG coding and regulatory regions, and we tested their possible association with MS in Italian patient and control DNA pools. Eight variations had a frequency <0.05, i.e. below the detection limit in the pools. Of these, Arg537Cys was further studied with individually genotyped individuals and was detected in 1/189 patients and 0/85 controls. The frequency of the six remaining SNPs were not significantly different in pools including a total of 1266 patient and 1612 control chromosomes. Considering the statistical power of the experimental design, these results exclude the MAG gene as an MS susceptibility factor with an odds ratio (OR) equal or higher than 1.3.Journal of Neuroimmunology 05/2002; 126(1-2):196-204. · 2.96 Impact Factor -
Article: Genetics of multiple sclerosis: linkage and association studies.
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ABSTRACT: Multiple sclerosis (MS) is a demyelinating autoimmune disease of the central nervous system caused by an interplay of environmental and genetic factors. The only genetic region that has been clearly demonstrated by linkage and association studies to contribute to MS genetic susceptibility is the human leukocyte antigen (HLA) system. The majority of HLA population studies in MS have focused on Caucasians of Northern European descent, where the predisposition to disease has been consistently associated with the class II DRB1*1501-DQA1*0102-DQB1*0602 haplotype. A positive association with DR4 was detected in Sardinians and in other Mediterranean populations. Moreover DR1, DR7, DR11 have been found to be protective in several populations. Systematic searches aimed at identifying non-HLA susceptibility genes were undertaken in several populations by means of linkage studies with microsatellite markers distributed across the whole genome. The conclusion of these studies was that there is no major MS locus, and genetic susceptibility to the disease is most likely explained by the presence of different genes each conferring a small contribution to the overall familial aggregation. The involvement of several candidate genes was tested by association studies, utilizing either a population-based (case control) or a family-based (transmission disequilibrium test) approach. Candidate genes were selected mainly on the basis of their involvement in the autoimmune pathogenesis and include immunorelevant molecules such as cytokines, cytokine receptors, immunoglobulin, T cell receptor subunits and myelin antigens. With the notable exception of HLA, association studies met only modest success. This failure may result from the small size of the tested samples and the small number of markers considered for each gene. New tools for large scale screening are needed to identify genetic determinants with a low phenotypic effect. Large collaborative studies are planned to screen several thousands of patients with MS with several thousands of genetic markers. The tests are increasingly based on the DNA pooling procedure.American Journal of PharmacoGenomics 02/2002; 2(1):37-58.
Top co-authors
Top Journals
Institutions
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2002–2012
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Università degli Studi del Piemonte Orientale "Amedeo Avogadro"
- • Dipartimento di Scienze della Salute
- • Interdisciplinary Research Center of Autoimmune Diseases IRCAD
Vercelli, Piedmont, Italy
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2003
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Università degli Studi di Bari Aldo Moro
Bari, Apulia, Italy -
Università degli studi di Verona
- Section of Biology and Genetics
Verona, Veneto, Italy
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1997
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Università degli Studi di Torino
- Dipartimento di Scienze Mediche
Torino, Piedmont, Italy
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