Spondyloarthritis (SpA) is an umbrella term describing a family of chronic inflammatory rheumatic diseases. These diseases are characterised by inflammation of the axial skeleton, peripheral joints, and entheseal insertion sites throughout the body which can lead to structural joint damage includ...
January 21, 2021
Journal:
Autoimmunity
Author:
Groen SS, Sinkeviciute D, Bay-Jensen AC, Thudium CS, Thomsen SF, Schett G, Nielsen SH, Karsdal MA
Osteoarthritis, rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis, all have one clear common denominator; an altered turnover of bone. However, this may be more complex than a simple change in bone matrix and mineral turnover. While these diseases share a common tissue axis, thei...
December 21, 2020
Journal:
BMC Musculoskelet Disord.
Author:
Thudium CS, Nielsen SH, Sardar S, Mobasheri A, van Spil WE, Lories R, Henriksen K, Bay-Jensen AC, Karsdal MA.
Background: Tissue released blood-based biomarkers can provide insight into drug mode of action and response. To understand the changes in extracellular matrix turnover, we analyzed biomarkers associated with joint tissue turnover from a phase 3, randomized, placebo-controlled study of baricitinib i...
October 12, 2020
Journal:
Arthritis Res Ther
Author:
Thudium CS, Bay-Jensen AC, Cahya S, Dow ER, Karsdal MA, Koch AE, Zhang W, Benschop RJ
Osteoarthritis (OA) is associated with cartilage breakdown, brought about by ADAMTS-5 mediated aggrecan degradation followed by MMP-derived aggrecan and type II collagen degradation. We investigated a novel anti-ADAMTS-5 inhibiting Nanobody® (M6495) on cartilage turnover ex vivo. Bovine cartilage (B...
September 20, 2020
Journal:
Int J Mol Sci
Author:
Siebuhr AS, Wekman D, Bay-Jensen AC, Thudium CS, Karsdal MA, Serruys B, Ladel C, Michaelis M, Lindemann S
Sprifermin, recombinant human fibroblast growth factor 18 (rhFGF18), induces cartilage regeneration in knees of patients with osteoarthritis (OA). We hypothesized that a temporal multiphasic process of extracellular matrix (ECM) degradation and formation underlie this effect. We aimed to characteriz...
April 7, 2020
Journal:
Sci Rep
Author:
Reker D, Siebuhr AS, Thudium CS, Gantzel T, Ladel C, Michaelis M, Aspberg A, Berchtold MW, Karsdal MA, Gigout A, Bay-Jensen AC
Objective: Links between pain and joint degradation are poorly understood. We investigated the role of activation of Toll-like receptors (TLR) by cartilage metabolites in initiating and maintaining the inflammatory loop in OA causing joint destruction. Methods: Synovial membrane explants (SMEs) wer...
November 14, 2019
Journal:
Osteoarthritis Cartilage
Author:
Sharma N, drobinski P, Kayed A, Chen Z, Kjelgaard-Petersen CF, Gantzel T, Karsdal MA, Michaels M, Ladel C, Bay-Jensen AC, Lindemann S, Thudium CS
Ex vivo culture systems cover a broad range of experiments dedicated to studying tissue and cellular function in a native setting. Cartilage is a unique tissue important for proper function of the synovial joint and is constituted by a dense extracellular matrix (ECM), rich in proteoglycan and type ...
BACKGROUND: Osteoarthritis (OA) leads to joint failure and total joint replacement (TJR, either hip (H) or knee (K)). Worsening of pain and joint space narrowing are believed to be surrogates for joint failure; however, we hypothesize that TJR, as a reflection of joint failure, can be used as an end...
June 26, 2019
Journal:
BMC Musculoskelet Disord
Author:
Bager CL, Karsdal MA, Bihlet A, Thudium CS, Byrjalsen I, Bay-Jensen AC
OBJECTIVES: Pain and disability are the main clinical manifestations of osteoarthritis, for which only symptomatic therapies are available. Hence, there is a need for therapies that can simultaneously alter disease progression and provide pain relief. KBP is a dual amylin- and calcitonin-receptor ag...
June 5, 2019
Journal:
Osteoarthritis Cartilage
Author:
Katri A, Dabrowska A, Lövfall H, Karsdal MA, Andreassen KV, Thudium CS, Henriksen K
C-telopeptide of type II collagen (CTX-II) has been shown to be a highly relevant biomarker of cartilage degradation in human rheumatic diseases, if measured in synovial fluid or urine. However, serum or plasma CTX-II have not been demonstrated to have any clinical utility to date. Here, we describe...
February 28, 2019
Journal:
Sci Rep
Author:
Löfvall H, Katri A, Dabrowska A, Karsdal MA, Luo Y, He Y, Manon-Jensen T, Dziegiel MH, Bay-Jensen AC, Thudium CS, Henriksen K
OBJECTIVE: A hallmark of osteoarthritis (OA) is degradation of articular cartilage proteoglycans. In isolated human OA chondrocytes, the anti-inflammatory cytokine Interleukin-37 (IL-37) lowers the expression of the proteolytic MMP and ADAMTS enzymes, which mediate this degradation. Therefore, we in...
September 7, 2018
Journal:
Osteoarthritis Cartilage
Author:
Van Geffen EW, Van Caam APM, Van de Loo FA, Van Lent PLEM, Koenders MI, Thudium CS, Bay-Jensen AC, Blaney Davidson EN, Van der Kraan PM
OBJECTIVE: Currently, there are no disease-modifying osteoarthritis drugs (DMOADs) approved for osteoarthritis. It is hypothesized that a subtype of OA may be driven by inflammation and may benefit from treatment with anti-inflammatory small molecule inhibitors adopted from treatments of rheumatoid ...
July 29, 2018
Journal:
Biochem Pharmacol
Author:
Kjelgaard-Petersen CF, Sharma N, Kayed A, Karsdal MA, Mobasheri A, Hägglund P, Bay-Jensen AC, Thudium CS
OBJECTIVES: The expanding spectrum of targeted therapies for rheumatoid arthritis (RA) implies a need for development of precision tools for disease assessment reflecting pathobiologic processes. Type IV collagen is an abundant protein of basement membranes, but is also present in the intercellular ...
May 8, 2018
Journal:
Clin Exp Rheumatol
Author:
Gudmann NS, Junker P, Juhl P, Thudium CS, Siebuhr AS, Byrjalsen I, Karsdal MA, Bay-Jensen AC
Osteoarthritis (OA) is the most common arthritic disease in the world, leading to debilitating pain and destruction of joint tissues. While pain is the hallmark symptom of osteoarthritis, clear associations between pain and disease processes involved in joint deterioration are lacking. OA pain is mu...
OBJECTIVE: Rheumatoid arthritis (RA) is a chronic, autoimmune and degenerative joint disease leading to disability, reduced life quality, and increased mortality. Although several synthetic and biological disease modifying anti-rheumatic drugs (DMARDs) are available, there is still a medical need fo...
April 18, 2018
Journal:
Arthritis Rheumatol
Author:
Kjelgaard-Petersen CF, Platt A, Braddock M, Jenkins MA, Musa K, Graham E, Gantzel T, Slynn G, Weinblatt ME, Karsdal MA, Thudium CS, Bay-Jensen AC
BACKGROUND: Osteoclasts have been strongly implicated in osteoarthritic cartilage degradation, at least indirectly via bone resorption, and have been shown to degrade cartilage in vitro. The osteoclast resorption processes required to degrade subchondral bone and cartilage-the remodeling of which is...
April 10, 2018
Journal:
Arthritis Res Ther
Author:
Löfvall H, Newbould H, Karsdal MA, Dziegiel MH, Richter J, Henriksen K, Thudium CS
OBJECTIVES: The objective of this study was to examine the tissue degradation in response to anti-IL6 receptor treatment in rheumatoid arthritis (RA) patients which are anti-TNF-α inadequate responders. METHODS: RADIATE was a randomised, double-blinded, placebo-controlled, parallel-group, phase III...
January 31, 2018
Journal:
Clin Exp Rheumatol
Author:
Juhl P, Thudium CS, Gudmann NS, Karsdal MA, Bay-Jensen AC, Siebuhr AS
PURPOSE OF REVIEW:There is an increasing demand for noninvasive and descriptive biochemical markers (biomarkers) in osteoarthritis; for enabling early drug development (including translational research), evaluating clinical trial at an early stage and for subtyping. Purpose of the review is to revie...
Osteoarthritis (OA) is the most common form of joint disease. This presents the OA research community and pharmaceutical companies developing disease-modifying OA drugs (DMOADs) with great opportunities. The different OA subtypes complicate the traditional approaches for developing new treatments. I...
OBJECTIVE: Knee osteoarthritis (OA) is among the higher contributors to global disability. Despite its high prevalence, currently, there is no cure for this disease. Furthermore, the available diagnostic approaches have large precision errors and low sensitivity. Therefore, there is a need for new b...
September 9, 2017
Journal:
Osteoarthritis Cartilage
Author:
Bacardit J, Henrotin Y, Bierma-Zeinstra SMA, Thudium CS, Bay-Jensen AC, Runhaar J, Lazzarini N
Little is known about local and systemic biomarkers in relation to synovitis and pain in end-stage osteoarthritis (OA) patients. We investigated the associations between the novel extracellular matrix biomarker, C1M, and local and systemic interleukin 6 (IL-6) with synovitis and pain. Serum C1M, pla...
March 22, 2017
Journal:
Clin J Pain
Author:
Radojcic MR, Thudium CS, Henriksen K, Tan K, Karlsten R, Dudley A, Chessell I, Karsdal MA, Bay-Jensen AC, Arbit E, Guermazi A
Objectives: Here, we tested the hypothesis that human M-CSF (hM-CSF) overexpressed in cord blood (CB) CD34+ cells would induce differentiation and survival of monocytes and osteoclasts in vitro and in vivo. Methods: Human M-CSF was overexpressed in cord blood CD34+ cells using a lentiviral vector. ...
February 3, 2017
Journal:
Eur J Hematology
Author:
Montano Almendras CP, Thudium CS, Löfvall H, Moscatelli I, Schambach A, Henriksen K, Richter J
Infantile malignant osteopetrosis (IMO) is a rare, recessive disorder characterized by increased bone mass caused by dysfunctional osteoclasts. The disease is most often caused by mutations in the TCIRG1 gene encoding a subunit of the V-ATPase involved in the osteoclasts capacity to resorb bone. We ...
August 19, 2016
Journal:
Calcif Tissue Int
Author:
Thudium CS, Moscatelli I, Löfvall H, Kertész Z, Montano C, Bjurström CF, Karsdal MA, Schulz AS, Richter J, Henriksen K
Introduction: Osteoporosis is a major health care problem, and whereas efficacious treatments for vertebral fracture reduction are available for osteoporosis patients, these therapies are still limited with respect to capacity for restoration of bone loss, as well as efficacy on non-vertebral fractu...
May 10, 2015
Journal:
Expert Opin Ther Targets
Author:
Henriksen K, Thudium CS, Christiansen C, Karsdal MA
Infantile malignant osteopetrosis (IMO) is a rare, lethal, autosomal recessive disorder characterized by non-functional osteoclasts. More than 50% of the patients have mutations in the TCIRG1 gene, encoding for a subunit of the osteoclast proton pump. The aim of this study was to restore the resorpt...
November 5, 2013
Journal:
Bone
Author:
Moscatelli I, Thudium CS, Flores C, Schulz A, Askmyr M, Gudmann NS, Andersen NM, Porras O, Karsdal MA, Villa A, Fasth A, Henriksen K, Richter J
Infantile malignant osteopetrosis (IMO) is a rare, lethal, autosomal recessive disorder characterized by non-functional osteoclasts. More than 50% of the patients have mutations in the TCIRG1 gene, encoding for a subunit of the osteoclast proton pump. The aim of this study was to restore the resorpt...
July 29, 2013
Journal:
Bone
Author:
Moscatelli I, Thudium CS, Flores C, Schulz A, Askmyr M, Gudmann KN, Andersen NM, Porras O, Karsdal MA, Villa A, Fasth A, Henriksen K, Richter J
The unique ability of the osteoclasts to resorb the calcified bone matrix is dependent on secretion of hydrochloric acid. This process is mediated by a vacuolar H+ ATPase (V-ATPase) and a chloride-proton antiporter. The structural subunit of the V-ATPase, a3, is highly specific for osteoclasts, and ...
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