Bone Resorption in Multiple Myeloma and in Monoclonal Gammopathy of Undetermined Significance: Quantification by Urinary Pyridinium Cross-Links of Collagen

To quantify osseous breakdown in multiple myeloma (MM), monoclonal gammopathy of undetermined significance (MGUS), and benign osteoporosis, we measured urinary levels of pyridinium cross-links of collagen in 50 patients with newly diagnosed and untreated MM, 40 patients with MGUS, 40 untreated patie...

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Veröffentlicht in:Blood 1997-11, Vol.90 (9), p.3743-3750
Hauptverfasser: Pecherstorfer, Martin, Seibel, Markus J., Woitge, Henning W., Horn, Eva, Schuster, Judith, Neuda, Jane, Sagaster, Peter, Köhn, Horst, Bayer, Peter, Thiébaud, Daniel, Ludwig, Heinz
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container_end_page 3750
container_issue 9
container_start_page 3743
container_title Blood
container_volume 90
creator Pecherstorfer, Martin
Seibel, Markus J.
Woitge, Henning W.
Horn, Eva
Schuster, Judith
Neuda, Jane
Sagaster, Peter
Köhn, Horst
Bayer, Peter
Thiébaud, Daniel
Ludwig, Heinz
description To quantify osseous breakdown in multiple myeloma (MM), monoclonal gammopathy of undetermined significance (MGUS), and benign osteoporosis, we measured urinary levels of pyridinium cross-links of collagen in 50 patients with newly diagnosed and untreated MM, 40 patients with MGUS, 40 untreated patients with osteoporotic vertebral fractures, and 64 healthy adults. Ion-paired, reverse-phase high-performance liquid chromatography (HPLC) was used to measure total urinary excretion of pyridinoline (h-PYD) and deoxypyridinoline (h-DPD). Urinary excretion of free immunoreactive deoxypyridinoline (i-DPD) was determined with an enzyme immunoassay. MM patients had significantly (P < .0001) higher levels of h-PYD, h-DPD, and i-DPD than the healthy adults, patients with MGUS, or patients with osteoporosis. The MGUS and osteoporosis groups presented with elevated (P < .05) levels of urinary pyridinium cross-links when compared with healthy controls. In 20 MM patients who subsequently received chemotherapy, the percent changes in i-DPD did not correlate with the changes in the monoclonal protein. In one of three patients experiencing a transition of initial MGUS into stage I MM, i-DPD increased above the upper limit of the normal range. In 13 patients with stable MGUS, i-DPD remained normal in repeated measurements. Based on the upper limits of the normal range, the sensitivity of urinary pyridinium cross-links in stage I and II MM was low (
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Ion-paired, reverse-phase high-performance liquid chromatography (HPLC) was used to measure total urinary excretion of pyridinoline (h-PYD) and deoxypyridinoline (h-DPD). Urinary excretion of free immunoreactive deoxypyridinoline (i-DPD) was determined with an enzyme immunoassay. MM patients had significantly (P &lt; .0001) higher levels of h-PYD, h-DPD, and i-DPD than the healthy adults, patients with MGUS, or patients with osteoporosis. The MGUS and osteoporosis groups presented with elevated (P &lt; .05) levels of urinary pyridinium cross-links when compared with healthy controls. In 20 MM patients who subsequently received chemotherapy, the percent changes in i-DPD did not correlate with the changes in the monoclonal protein. In one of three patients experiencing a transition of initial MGUS into stage I MM, i-DPD increased above the upper limit of the normal range. In 13 patients with stable MGUS, i-DPD remained normal in repeated measurements. Based on the upper limits of the normal range, the sensitivity of urinary pyridinium cross-links in stage I and II MM was low (&lt;50%), but it was between 78% (h-DPD) and 93% (i-DPD) in stage III MM. Specificity in patients with MGUS was between 87% (h-PYD) and 97% (h-DPD). In conclusion, determining the urinary excretion of pyridinium cross-links seems to be a promising noninvasive and thus easily repeatable method for evaluating the actual degree of osseous breakdown. Although measurement of pyridinium cross-link levels is not useful in discriminating patients with MGUS from early-stage myeloma patients, determination of i-DPD levels may contribute importantly to clinical guidance, since increased i-DPD levels seem to identify patients who are particularly likely to benefit from osteoclast-inhibiting drugs such as bisphosphonates. 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Immunoglobulinopathies ; Immunoglobulinopathies ; Immunopathology ; Male ; Medical sciences ; Middle Aged ; Multiple Myeloma - physiopathology ; Multiple Myeloma - urine ; Paraproteinemias - physiopathology ; Paraproteinemias - urine ; Pyridinium Compounds - urine</subject><ispartof>Blood, 1997-11, Vol.90 (9), p.3743-3750</ispartof><rights>1997 American Society of Hematology</rights><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c482t-6d064985ad3a3a2040750de6d6b9bb2ad6e717dd6a04cae338d4b5478fc223013</citedby><cites>FETCH-LOGICAL-c482t-6d064985ad3a3a2040750de6d6b9bb2ad6e717dd6a04cae338d4b5478fc223013</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=2054002$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9345061$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pecherstorfer, Martin</creatorcontrib><creatorcontrib>Seibel, Markus J.</creatorcontrib><creatorcontrib>Woitge, Henning W.</creatorcontrib><creatorcontrib>Horn, Eva</creatorcontrib><creatorcontrib>Schuster, Judith</creatorcontrib><creatorcontrib>Neuda, Jane</creatorcontrib><creatorcontrib>Sagaster, Peter</creatorcontrib><creatorcontrib>Köhn, Horst</creatorcontrib><creatorcontrib>Bayer, Peter</creatorcontrib><creatorcontrib>Thiébaud, Daniel</creatorcontrib><creatorcontrib>Ludwig, Heinz</creatorcontrib><title>Bone Resorption in Multiple Myeloma and in Monoclonal Gammopathy of Undetermined Significance: Quantification by Urinary Pyridinium Cross-Links of Collagen</title><title>Blood</title><addtitle>Blood</addtitle><description>To quantify osseous breakdown in multiple myeloma (MM), monoclonal gammopathy of undetermined significance (MGUS), and benign osteoporosis, we measured urinary levels of pyridinium cross-links of collagen in 50 patients with newly diagnosed and untreated MM, 40 patients with MGUS, 40 untreated patients with osteoporotic vertebral fractures, and 64 healthy adults. Ion-paired, reverse-phase high-performance liquid chromatography (HPLC) was used to measure total urinary excretion of pyridinoline (h-PYD) and deoxypyridinoline (h-DPD). Urinary excretion of free immunoreactive deoxypyridinoline (i-DPD) was determined with an enzyme immunoassay. MM patients had significantly (P &lt; .0001) higher levels of h-PYD, h-DPD, and i-DPD than the healthy adults, patients with MGUS, or patients with osteoporosis. The MGUS and osteoporosis groups presented with elevated (P &lt; .05) levels of urinary pyridinium cross-links when compared with healthy controls. In 20 MM patients who subsequently received chemotherapy, the percent changes in i-DPD did not correlate with the changes in the monoclonal protein. In one of three patients experiencing a transition of initial MGUS into stage I MM, i-DPD increased above the upper limit of the normal range. In 13 patients with stable MGUS, i-DPD remained normal in repeated measurements. 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Ion-paired, reverse-phase high-performance liquid chromatography (HPLC) was used to measure total urinary excretion of pyridinoline (h-PYD) and deoxypyridinoline (h-DPD). Urinary excretion of free immunoreactive deoxypyridinoline (i-DPD) was determined with an enzyme immunoassay. MM patients had significantly (P &lt; .0001) higher levels of h-PYD, h-DPD, and i-DPD than the healthy adults, patients with MGUS, or patients with osteoporosis. The MGUS and osteoporosis groups presented with elevated (P &lt; .05) levels of urinary pyridinium cross-links when compared with healthy controls. In 20 MM patients who subsequently received chemotherapy, the percent changes in i-DPD did not correlate with the changes in the monoclonal protein. In one of three patients experiencing a transition of initial MGUS into stage I MM, i-DPD increased above the upper limit of the normal range. In 13 patients with stable MGUS, i-DPD remained normal in repeated measurements. Based on the upper limits of the normal range, the sensitivity of urinary pyridinium cross-links in stage I and II MM was low (&lt;50%), but it was between 78% (h-DPD) and 93% (i-DPD) in stage III MM. Specificity in patients with MGUS was between 87% (h-PYD) and 97% (h-DPD). In conclusion, determining the urinary excretion of pyridinium cross-links seems to be a promising noninvasive and thus easily repeatable method for evaluating the actual degree of osseous breakdown. Although measurement of pyridinium cross-link levels is not useful in discriminating patients with MGUS from early-stage myeloma patients, determination of i-DPD levels may contribute importantly to clinical guidance, since increased i-DPD levels seem to identify patients who are particularly likely to benefit from osteoclast-inhibiting drugs such as bisphosphonates. The fact that in a number of patients paraprotein concentrations and i-DPD levels did not change in parallel but instead diverged strongly after chemotherapy might explain the observation that bone lesions sometimes progress even in patients who achieve complete remission.</abstract><cop>Washington, DC</cop><pub>Elsevier Inc</pub><pmid>9345061</pmid><doi>10.1182/blood.V90.9.3743</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Aged, 80 and over
Biological and medical sciences
Biomarkers
Bone Resorption - urine
Collagen - urine
Cross-Linking Reagents
Female
Humans
Immunodeficiencies. Immunoglobulinopathies
Immunoglobulinopathies
Immunopathology
Male
Medical sciences
Middle Aged
Multiple Myeloma - physiopathology
Multiple Myeloma - urine
Paraproteinemias - physiopathology
Paraproteinemias - urine
Pyridinium Compounds - urine
title Bone Resorption in Multiple Myeloma and in Monoclonal Gammopathy of Undetermined Significance: Quantification by Urinary Pyridinium Cross-Links of Collagen
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