Background and aims: Liver fibrosis results from a prolonged wound healing response to continued injury with excessive production of extracellular proteins. In patients with chronic liver disease, the monitoring of liver fibrosis dynamics is of high interest. Whilst markers of fibrogenesis exist, ...
April 12, 2022
Journal:
Liver Int
Author:
Pehrsson M, Manon-Jensen T, Sun S, Villesen IF, Castane H, Joven J, Patel K, Goodman Z, Bay-Jensen AC, Mortensen JH, Karsdal MA, Leeming DJ, Nielsen MJ
Background and aims Endoscopy and the use of fecal calprotectin (fecal CP) are among the least favored methods for assessing disease activity by inflammatory bowel disease (IBD) patients; the handling/processing of fecal samples is also impractical. Therefore, we sought to develop a novel neo-epi...
March 19, 2022
Journal:
Journal of Crohn's and Colitis
Author:
Mortensen JH, Sinkeviciute D, Manon-Jensen T, Domislovic V, McCall K, Thudium CS, Brinar M, Önnerfjord P, Goodyear CS, Krznaric Z, Karsdal MA, Bay-Jensen AC
Objectives: There is a need for precision medicine and an unspoken promise of an optimal approach for identification of the right patients for value-based medicine based on big data. However, there may be a misconception that measurement of proteins is more valuable than measurement of fewer selecte...
August 26, 2021
Journal:
Clin Biochem
Author:
Karsdal MA, Rasmussen DGK, Bay-Jensen AC, Mortensen JH, Holm Nielsen S, Willumsen N, Jensen C, Manon-Jensen T, Jennings L, Reese-Petersen AL, Henriksen K, Leeming DJ, Bager CL, Genovese F, Bülow Sand JM
Introduction: Enzymatic cross-linking of the collagens within the extracellular matrix (ECM) catalyzed by enzymes such as lysyl oxidase (LOX) and lysyl oxidase like-enzymes 1-4 (LOXL), transglutaminase 2 (TG2), and peroxidasin (PXDN) contribute to fibrosis progression through extensive collagen cros...
August 24, 2021
Journal:
Expert Rev Mol Diagn
Author:
Pehrsson M, Mortensen JH, Manon-Jensen T, Bay-Jensen AC, Karsdal MA, Davies MJ
Abstract In inflammatory bowel disease (IBD), the chronic inflammation deeply affects the intestinal extracellular matrix. The aim of this study was to investigate if remodeling of the intestinal basement membrane type VI collagen was associated with pathophysiological changes in Crohn's disease ...
July 19, 2021
Journal:
Sci Rep
Author:
Manon-Jensen T, Mortensen JH, Lindholm M, Godskesen LE, Krag A, Karsdal MA, Kjeldsen J
A desmoplastic colorectal cancer stroma, characterized by excess turnover of the cancer-associated fibroblast derived collagens type III and VI, can lead to reduced drug-uptake and poor treatment response. We investigated the association between biomarkers of collagen type III and VI and overall sur...
January 19, 2021
Journal:
Sci Rep
Author:
Nissen NI, Boisen MK, Liljefors M, Jensen C, Johansen AZ, Johansen JS, Erler JT, Mortensen JH, Høye A, Willumsen N, Karsdal MA, Kehlet SN
Introduction: Anti-tumor necrosis factor (TNF) therapy is effective in inducing remission in Crohn's disease in 60% of patients. No serological biomarkers are available, which can predict response to anti-TNF. We aimed to investigate serological markers of collagen turnover reflecting tissue inflamm...
September 11, 2020
Journal:
Clin Transl Gastroenterol
Author:
van Haaften WT, Mortensen JH, Dige AK, Grønbæk H, Hvas CL, Bay-Jensen AC, Karsdal MA, Olinga P, Manon-Jensen T, Dijkstra G
Background: In Crohn's disease (CD), 10% to 40% of patients do not respond to anti-tumor necrosis factor-α (TNFα) treatment. Currently, there are no biomarkers with adequate sensitivity to separate responders from nonresponders at an early stage. Aim: The aim of this study was to investigated wheth...
April 14, 2020
Journal:
J Clin Gastroenterol
Author:
Mortensen JH, Van Haaften WT, Karsdal MA, Bay-Jensen AC, Olinga P, Grønbæk H, Hvas CL, Manon-Jensen T, Dijkstra G, Dige AK
Extracellular matrix (ECM) remodeling is a hallmark of the pathology of gastrointestinal disorders. Collagen type VI (COL6) is produced by fibroblasts, and the COL6 α3-chain has shown to be elevated in patients with ulcerative colitis (UC), Crohn's disease (CD) and colorectal cancer (CRC). Measuring...
April 3, 2020
Journal:
Sci Rep
Author:
Nielsen SH, Mortensen JH, Willumsen N, Mogensen DJ, Di Sabatino A, Mazza G, Jørgensen LN, Pinzani M, Klinge LG, Kjeldsen J, Leeming DJ, Karsdal MA, Genovese F, Rasmussen DGK, Giuffrida P
Introduction: Extracellular matrix (ECM) remodeling of the intestinal tissue is important in inflammatory bowel disease (IBD) due to the extensive mucosal remodeling. There are still gaps in our knowledge as to how ECM remodeling is related to intestinal epithelium homeostasis and healing of the int...
October 22, 2019
Journal:
Expert Rev Gastroenterol Hepatol
Author:
Mortensen JH, Lindholm M, Langholm LL, Kjeldsen J, Bay-Jensen AC, Karsdal MA, Manon-Jensen T
BACKGROUND AND AIMS: Crohns disease (CD) is a chronic inflammatory condition characterized by continuous mucosal damage and ongoing wound healing of the intestines. The fibrinolytic system is involved in early parts of the wound healing process. Fibrin is a key mediator of primary blood clot formati...
June 1, 2019
Journal:
J Gastrointestin Liver Dis
Author:
Sun S, Karsdal MA, Mortensen JH, Luo Y, Kjeldsen J, Krag A, Jensen MD, Bay-Jensen AC, Manon-Jensen T
Background: Crohn’s disease (CD) is a chronic inflammatory condition of the intestinal tract resulting in severe intestinal tissue damage. The concept of mucosal healing has therefore gained significant interest as a therapeutic end point in the treatment of inflammatory bowel disease (IBD). Given t...
January 31, 2019
Journal:
EC Gastroenterology and Digestive
Author:
Manon-Jensen T, Langholm LL, Sun S, Mortensen JH, He Y, Krag A, Jensen MD, Bay-Jensen AC, Kjeldsen J, Karsdal MA
OBJECTIVES: Macrophages possess widespread pro-inflammatory, destructive, and remodelling capabilities that can critically contribute to acute and chronic diseases, such as rheumatoid arthritis (RA). Continuous monitoring and measurement of selective counteraction of macrophage activity in patients ...
November 7, 2018
Journal:
Clin Exp Rheumatol.
Author:
Mortensen JH, Guo X, De Los Reyes M, Dziegiel MH, Bay Jensen AC, White WI
Altered extracellular matrix (ECM) remodeling is an important part of the pathology of gastrointestinal (GI) disorders. In the intestine, type XVI collagen (col-16) plays a role in pathogenesis by affecting ECM architecture and induce cell invasion. Measuring col-16 in serum may therefore have bioma...
July 20, 2018
Journal:
Cancer Med
Author:
Jensen C, Nielsen SH, Mortensen JH, Kjeldsen J, Klinge LG, Harling H, Jørgensen LN, Karsdal MA, Willumsen N, Leeming DJ
BACKGROUND AND AIMS: Hernia formation is associated with alterations of collagen metabolism. Collagen synthesis and degradation cause a systemic release of products, which are measurable in serum. Recently, we reported changes in type V and IV collagen metabolisms in patients with inguinal and incis...
April 1, 2018
Journal:
Scand J Surg
Author:
Lorentzen L, Henriksen NA, Juhl P, Mortensen JH, Ågren MS, Karsdal MA, Jorgensen LN
BACKGROUND:Increased protease activity is a key pathological feature of inflammatory bowel disease (IBD). However, the differences in extracellular matrix remodelling (ECM) in Crohn\u0027s disease (CD) and ulcerative colitis (UC) are not well described. An increased understanding of the inflammatory...
October 13, 2017
Journal:
PLoS One
Author:
Bay-Jensen AC, Karsdal MA, Krag A, Kjeldsen J, Klinge LG, Hägglund P, Jensen MD, Manon-Jensen T, Mortensen JH
Usually the dense extracellular structure in fibrotic tissues is described as extracellular matrix (ECM) or simply as collagen. However, fibrosis is not just fibrosis, which is already exemplified by the variant morphological characteristics of fibrosis due to viral versus cholestatic, autoimmune or...
July 21, 2017
Journal:
Adv Drug Deliv Rev
Author:
Karsdal MA, Nielsen SH, Leeming DJ, Langholm LL, Nielsen MJ, Manon-Jensen T, Siebuhr AS, Gudmann NS, Rønnow S, Daniels SJ, Mortensen JH, Schuppan D, Bülow Sand JM
Background: Misbalances in extracellular matrix turnover are key factors in the development of stricturing (Montreal B2) and penetrating (Montreal B3) Crohn's disease. Aim: To determine whether serological markers for collagen formation and degradation could serve as biomarkers for complications of...
May 8, 2017
Journal:
Aliment Pharmacol Ther.
Author:
Van Haaften WT, Mortensen JH, Karsdal MA, Bay-Jensen AC, Dijkstra G, Olinga P
BACKGROUND: Throughout life, inguinal hernia develops in approximately every fourth man, some of whom develop multiple hernias. If patients at risk of developing multiple hernias could be identified by a serologic biomarker, treatment might be able to be tailored and improved. Evidence suggests that...
April 14, 2016
Journal:
Surgery
Author:
Henriksen NA, Mortensen JH, Lorentzen L, Ågren MS, Bay-Jensen AC, Jorgensen LN, Karsdal MA
Background: Disturbed metabolism in the extracellular matrix (ECM) contributes to formation of abdominal wall hernias. The aim of this study was to gain deeper insight into the ECM turnover in hernia patients by analyzing serum biomarkers specifically reflecting collagen synthesis and breakdown in t...
February 1, 2015
Journal:
Surgery
Author:
Henriksen NA, Mortensen JH, Sorensen LT, Bay-Jensen AC, Agren MS, Jorgensen LN, Karsdal MA
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