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  • 1. Berger, Eloise
    et al.
    Delpierre, Cyrille
    Hosnijeh, Fatemeh Saberi
    Kelly-Irving, Michelle
    Portengen, Lutzen
    Bergdahl, Ingvar
    Umeå universitet, Medicinska fakulteten, Enheten för biobanksforskning.
    Johansson, Ann Sofie
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Krogh, Vittorio
    Palli, Domenico
    Panico, Salvatore
    Sacerdote, Carlotta
    Tumino, Rosario
    Kyrtopoulos, Soterios A.
    Vineis, Paolo
    Chadeau-Hyam, Marc
    Vermeulen, Roel
    Castagné, Raphaële
    Association between low-grade inflammation and Breast cancer and B-cell Myeloma and Non-Hodgkin Lymphoma: findings from two prospective cohorts2018Ingår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, artikel-id 10805Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Chronic inflammation may be involved in cancer development and progression. Using 28 inflammatory-related proteins collected from prospective blood samples from two case-control studies nested in the Italian component of the European Prospective Investigation into Cancer and nutrition (n = 261) and in the Northern Sweden Health and Disease Study (n = 402), we tested the hypothesis that an inflammatory score is associated with breast cancer (BC) and.-cell Non-Hodgkin Lymphoma (B-cell NHL, including 68 multiple myeloma cases) onset. We modelled the relationship between this inflammatory score and the two cancers studied: (BC and B-cell NHL) using generalised linear models, and assessed, through adjustments the role of behaviours and lifestyle factors. Analyses were performed by cancer types pooling both populations, and stratified by cohorts, and time to diagnosis. Our results suggested a lower inflammatory score in B-cell NHL cases (β = -1.28, p = 0.012), and, to lesser, extent with BC (β= -0.96, p = 0.33) compared to controls, mainly driven by cancer cases diagnosed less than 6 years after enrolment. These associations were not affected by subsequent adjustments for potential intermediate confounders, notably behaviours. Sensitivity analyses indicated that our findings were not affected by the way the inflammatory score was calculated. These observations call for further studies involving larger populations, larger variety of cancer types and repeated measures of larger panel of inflammatory markers.

  • 2. Campanella, Gianluca
    et al.
    Gunter, Marc J.
    Polidoro, Silvia
    Krogh, Vittorio
    Palli, Domenico
    Panico, Salvatore
    Sacerdote, Carlotta
    Tumino, Rosario
    Fiorito, Giovanni
    Guarrera, Simonetta
    Iacoviello, Licia
    Bergdahl, Ingvar A.
    Umeå universitet, Medicinska fakulteten, Enheten för biobanksforskning.
    Melin, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Lenner, Per
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    de Kok, Theo M. C. M.
    Georgiadis, Panagiotis
    Kleinjans, Jos C. S.
    Kyrtopoulos, Soterios A.
    Bueno-de-Mesquita, H. Bas
    Lillycrop, Karen A.
    May, Anne M.
    Onland-Moret, N. Charlotte
    Murray, Robert
    Riboli, Elio
    Verschuren, Monique
    Lund, Eiliv
    Mode, Nicolle
    Sandanger, Torkjel M.
    Fiano, Valentina
    Trevisan, Morena
    Matullo, Giuseppe
    Froguel, Philippe
    Elliott, Paul
    Vineis, Paolo
    Chadeau-Hyam, Marc
    Epigenome-wide association study of adiposity and future risk of obesity-related diseases2018Ingår i: International Journal of Obesity, ISSN 0307-0565, E-ISSN 1476-5497, Vol. 42, nr 12, s. 2022-2035Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Obesity is an established risk factor for several common chronic diseases such as breast and colorectal cancer, metabolic and cardiovascular diseases; however, the biological basis for these relationships is not fully understood. To explore the association of obesity with these conditions, we investigated peripheral blood leucocyte (PBL) DNA methylation markers for adiposity and their contribution to risk of incident breast and colorectal cancer and myocardial infarction.

    Methods: DNA methylation profiles (Illumina Infinium® HumanMethylation450 BeadChip) from 1941 individuals from four population-based European cohorts were analysed in relation to body mass index, waist circumference, waist-hip and waist-height ratio within a meta-analytical framework. In a subset of these individuals, data on genome-wide gene expression level, biomarkers of glucose and lipid metabolism were also available. Validation of methylation markers associated with all adiposity measures was performed in 358 individuals. Finally, we investigated the association of obesity-related methylation marks with breast, colorectal cancer and myocardial infarction within relevant subsets of the discovery population.

    Results: We identified 40 CpG loci with methylation levels associated with at least one adiposity measure. Of these, one CpG locus (cg06500161) in ABCG1 was associated with all four adiposity measures (P = 9.07×10−8 to 3.27×10−18) and lower transcriptional activity of the full-length isoform of ABCG1 (P = 6.00×10−7), higher triglyceride levels (P = 5.37×10−9) and higher triglycerides-to-HDL cholesterol ratio (P = 1.03×10−10). Of the 40 informative and obesity-related CpG loci, two (in IL2RB and FGF18) were significantly associated with colorectal cancer (inversely, P < 1.6×10−3) and one intergenic locus on chromosome 1 was inversely associated with myocardial infarction (P < 1.25×10−3), independently of obesity and established risk factors.

    Conclusion: Our results suggest that epigenetic changes, in particular altered DNA methylation patterns, may be an intermediate biomarker at the intersection of obesity and obesity-related diseases, and could offer clues as to underlying biological mechanisms.

  • 3. Campanella, Gianluca
    et al.
    Gunter, Marc J.
    Polidoro, Silvia
    Krogh, Vittorio
    Palli, Domenico
    Panico, Salvatore
    Sacerdote, Carlotta
    Tumino, Rosario
    Fiorito, Giovanni
    Guarrera, Simonetta
    Iacoviello, Licia
    Bergdahl, Ingvar
    Umeå universitet, Medicinska fakulteten, Enheten för biobanksforskning.
    Melin, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Lenner, Per
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    de Kok, Theo M. C. M.
    Georgiadis, Panagiotis
    Kleinjans, Jos C. S.
    Kyrtopoulos, Soterios A.
    Bueno-de-Mesquita, H. Bas
    Lillycrop, Karen A.
    May, Anne M.
    Onland-Moret, N. Charlotte
    Murray, Robert
    Riboli, Elio
    Verschuren, Monique
    Lund, Eiliv
    Mode, Nicolle
    Sandanger, Torkjel M.
    Fiano, Valentina
    Trevisan, Morena
    Matullo, Giuseppe
    Froguel, Philippe
    Elliott, Paul
    Vineis, Paolo
    Chadeau-Hyam, Marc
    Epigenome-wide association study of adiposity and future risk of obesity-related diseases2018Ingår i: International Journal of Obesity, ISSN 0307-0565, E-ISSN 1476-5497, Vol. 42, nr 12, s. 2022-2035Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background Obesity is an established risk factor for several common chronic diseases such as breast and colorectal cancer, metabolic and cardiovascular diseases; however, the biological basis for these relationships is not fully understood. To explore the association of obesity with these conditions, we investigated peripheral blood leucocyte (PBL) DNA methylation markers for adiposity and their contribution to risk of incident breast and colorectal cancer and myocardial infarction. Methods DNA methylation profiles (Illumina Infinium® HumanMethylation450 BeadChip) from 1941 individuals from four population-based European cohorts were analysed in relation to body mass index, waist circumference, waist-hip and waistheight ratio within a meta-analytical framework. In a subset of these individuals, data on genome-wide gene expression level, biomarkers of glucose and lipid metabolism were also available. Validation of methylation markers associated with all adiposity measures was performed in 358 individuals. Finally, we investigated the association of obesity-related methylation marks with breast, colorectal cancer and myocardial infarction within relevant subsets of the discovery population. Results We identified 40 CpG loci with methylation levels associated with at least one adiposity measure. Of these, one CpG locus (cg06500161) in ABCG1 was associated with all four adiposity measures (P=9.07×10−8 to 3.27×10−18) and lower transcriptional activity of the full-length isoform of ABCG1 (P=6.00×10−7), higher triglyceride levels (P=5.37×10−9) and higher triglycerides-to-HDL cholesterol ratio (P=1.03×10−10). Of the 40 informative and obesity-related CpG loci, two (in IL2RB and FGF18) were significantly associated with colorectal cancer (inversely, P<1.6×10−3) and one intergenic locus on chromosome 1 was inversely associated with myocardial infarction (P<1.25×10−3), independently of obesity and established risk factors. Conclusion Our results suggest that epigenetic changes, in particular altered DNA methylation patterns, may be an intermediate biomarker at the intersection of obesity and obesity-related diseases, and could offer clues as to underlying biological mechanisms.

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