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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">jsms</journal-id><journal-title-group><journal-title xml:lang="ru">Journal of Siberian Medical Sciences</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Siberian Medical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2542-1174</issn><publisher><publisher-name>Federal state budgetary educational institution of higher education "Novosibirsk state medical university" of  Ministry of Health of the Russian Federation (FSBEI HE NSMU MOH Russia)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31549/2542-1174-2020-2-4-19</article-id><article-id custom-type="elpub" pub-id-type="custom">jsms-623</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Прогностическое значение сывороточных свободных легких цепей иммуноглобулинов при множественной миеломе в реальной клинической практике</article-title><trans-title-group xml:lang="en"><trans-title>Prognostic value of serum immunoglobulin free light chains in multiple myeloma in real clinical practice</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скворцова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Skvortsova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, доцент кафедры терапии, гематологии и трансфузиологии,</p><p>630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p>Cand. Sci. (Med.), Associate Professor, Department of Therapy, Hematology and Transfusiology,</p><p>Novosibirsk</p></bio><email xlink:type="simple">nata_sk78@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поспелова</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pospelova</surname><given-names>T. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р мед. наук, профессор, заведующий кафедрой терапии, гематологии и трансфузиологии, проректор по научной работе,  главный гематолог министерства здравоохранения Новосибирской области и Сибирского федерального округа,</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Dr. Sci. (Med.), Professor, Head, Department of Therapy, Hematology and Transfusiology, Vice Rector for Research, Chief Hematologist, Ministry of Health of the Novosibirsk Region and the Siberian Federal District,</p><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хальзов</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khalzov</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, доцент кафедры терапии, гематологии и трансфузиологии,</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Cand. Sci. (Med.), Associate Professor, Department of Therapy, Hematology and Transfusiology,</p><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковынев</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovynev</surname><given-names>I. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р мед. наук, профессор кафедры терапии, гематологии и трансфузиологии,</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Dr. Sci. (Med.), Professor, Department of Therapy, Hematology and Transfusiology, </p><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нечунаева</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Nechunaeva</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, заведующий отделением гематологии,</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Cand. Sci. (Med.), Head, Department of Hematology, </p><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГБУЗ НСО «Городская клиническая больница № 2», Городской гематологический центр (Новосибирск)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>City Clinical Hospital No. 2, City Hematology Center (Novosibirsk)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2020</year></pub-date><volume>0</volume><issue>2</issue><fpage>4</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Скворцова Н.В., Поспелова Т.И., Хальзов К.В., Ковынев И.Б., Нечунаева И.Н., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Скворцова Н.В., Поспелова Т.И., Хальзов К.В., Ковынев И.Б., Нечунаева И.Н.</copyright-holder><copyright-holder xml:lang="en">Skvortsova N.V., Pospelova T.I., Khalzov K.V., Kovynev I.B., Nechunaeva I.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://jsms.elpub.ru/jour/article/view/623">https://jsms.elpub.ru/jour/article/view/623</self-uri><abstract><p>Проведена оценка диагностического и прогностического значения исследования сывороточных свободных легких цепей иммуноглобулинов κ и λ (СЛЦ-κ и СЛЦ-λ) и их соотношения (κ/λ СЛЦ) у пациентов с множественной миеломой (ММ). Обследовано 206 больных с впервые диагностированной ММ, наблюдавшихся в Гематологическом центре г. Новосибирска в период с 2012 по 2017 г. Медиана возраста обследуемых составила 67 лет (32–82 года). В контрольную группу включено 56 условно здоровых лиц: 34 женщины (60.7 %), 22 (39.3 %) мужчины, медиана возраста в этой группе — 62 года (40–68 лет). Концентрацию СЛЦ-κ и СЛЦ-λ (мг/л) в сыворотке крови определяли иммунотурбидиметрическим методом.</p><p>Установлено, что у больных ММ уровень секреции сывороточных СЛЦ-κ или СЛЦ-λ был статистически значимо выше по сравнению с группой контроля и различался в зависимости от типа ММ (p &lt; 0.005). Диагностическая чувствительность количественного определения СЛЦ и их соотношения при ММ составила 98.54 %, по сравнению с 94.17 % при стандартном иммунохимическом исследовании. Значения соотношения κ/λ СЛЦ &lt; 0.04 или &gt; 65, а также уровень СЛЦ-κ и СЛЦ-λ выше медианы, полученной в целом по группе (СЛЦ-κ ≥ 702.0 и СЛЦ-λ ≥ 493.2 мг/л), коррелируют с известными факторами неблагоприятного прогноза при ММ (с высоким уровнем β2-микроглобулина (&gt;3.5 мг/л) (r = 0.461, р &lt; 0.001), плазмоклеточной инфильтрацией костного мозга &gt; 24 % (r = 0.420, р &lt; 0.001), почечной недостаточностью (креатинин &gt; 177 мкмоль/л) (r = 0.380, р &lt; 0.002)), а также с высоким уровнем ЛДГ (&gt;450 ед./л) (r = 0.520, р &lt; 0.001) и ассоциируются с неблагоприятным исходом. Медиана общей выживаемости (ОВ) в группе пациентов с κ/λ СЛЦ &lt; 0.04 или &gt; 65 составила 49 мес по сравнению с 76 мес в группе с κ/λ СЛЦ 0.04–65 (p &lt; 0.001), 5-летняя ОВ — 42 и 75 % соответственно (р &lt; 0.001).</p><p>Таким образом, определение сывороточных СЛЦ в сыворотке крови больных ММ повышает диагностические возможности и может быть использовано для оценки прогноза их выживаемости. Значение соотношения κ/λ СЛЦ &lt;0.04 или &gt;65 позволяет разделить пациентов с ММ на группы риска с достоверно различающимися исходами и может применяться для выявления больных с высоким риском, нуждающихся в более агрессивной терапии и детальном мониторинге ответа на нее.</p></abstract><trans-abstract xml:lang="en"><p>The diagnostic and prognostic value of the study of serum immunoglobulin free light chains kappa and lambda (FLC-κ and FLC-λ) and their ratio (FLC κ/λ) in patients with multiple myeloma (MM) was evaluated. The study involved 206 patients with newly diagnosed MM which were observed in Novosibirsk Hematology Center from 2012 to 2017. The median age of the subjects was 67 years (32–82 years). The control group included 56 conditionally healthy individuals: 34 women (60.7%), 22 (39.3%) men, and the median age in this group was 62 years (40–68 years). The concentration of FLC-κ and FLC-λ (mg/l) in blood serum was determined by immunoturbidimetric method.</p><p>It was found that in patients with MM, the secretion level of serum FLC-κ or FLC-λ was statistically significantly higher in comparison with the control group and differed depending on the type of MM (p &lt; 0.005). The diagnostic sensitivity of the quantitative determination of FLCs and their ratio in MM was 98.54%, compared with 94.17% in a standard immunochemical study. The values of the FLC κ / λ ratio &lt; 0.04 or &gt; 60, as well as the level of FLC-κ and FLC-λ are higher than the median obtained for the whole group (FLC-κ ≥ 702.0 and FLC-λ ≥ 493.2 mg/l); correlate with the known unfavorable prognosis factors for MM — with a high β2-microglobulin level (&gt;3.5 mg/l) (r = 0.461, p &lt; 0.001), plasma cell infiltration of bone marrow &gt; 24% (r = 0.420, p &lt; 0.001), and renal failure (creatinine &gt; 173 μmol/l) (r = 0.380, p &lt; 0.002), and also with a high level of LDH (&gt;450 units/l) (r = 0.520, p &lt; 0.001) — and are associate with an adverse outcome. The median overall survival (OS ) in the group of patients with FLC κ / λ &lt; 0.04 or &gt; 65 was 35 months compared with 60 months in the group with FLC κ / λ 0.04–65 (p &lt; 0.001), 5-year OS — 42 and 75% respectively (p &lt; 0.001).</p><p>Thus, the determination of serum FLCs in the blood serum of patients with MM increases diagnostic capabilities and can be used to assess the survival prognosis. The value of the FLC κ / λ ratio &lt; 0.04 or &gt; 65 allows us to divide patients with MM into risk groups with significantly different outcomes and can be used to identify patients with high risk who need more aggressive therapy and more detailed monitoring of the response to it.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>множественная миелома</kwd><kwd>свободные легкие цепи иммуноглобулинов</kwd><kwd>диагностика</kwd><kwd>прогноз</kwd><kwd>общая выживаемость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multiple myeloma</kwd><kwd>immunoglobulin free light chains</kwd><kwd>diagnosis</kwd><kwd>prognosis</kwd><kwd>survival</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kyle R.A., Rajkumar S.V. Criteria for diagnosis, staging, risk stratification and response assessment of multiple myeloma // Leukemia. 2014 Apr. Vol. 28 (4). P. 980. 2. 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