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Editor-in-chief
Maria Stella Graziani

Deputy Director
Martina Zaninotto

Associate Editors
Ferruccio Ceriotti
Davide Giavarina
Bruna Lo Sasso
Giampaolo Merlini
Martina Montagnana
Andrea Mosca
Paola Pezzati
Rossella Tomaiuolo
Matteo Vidali

EIC Assistant
Francesco Busardò

International Advisory Board Khosrow Adeli Canada
Sergio Bernardini Italy
Marcello Ciaccio Italy
Eleftherios Diamandis Canada
Philippe Gillery France
Kjell Grankvist Sweden
Hans Jacobs The Netherlands
Eric Kilpatrick UK
Magdalena Krintus Poland
Giuseppe Lippi Italy
Mario Plebani Italy
Sverre Sandberg Norway
Ana-Maria Simundic Croatia
Tommaso Trenti Italy
Cas Weykamp The Netherlands
Maria Willrich USA
Paul Yip Canada

Publisher
Biomedia srl
Via L. Temolo 4, 20126 Milano

Responsible Editor
Giuseppe Agosta

Editorial Secretary
Chiara Riva
Biomedia srl
Via L. Temolo 4, 20126 Milano
Tel. 0245498282
email: biochimica.clinica@sibioc.it

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ISSN print: 0393 – 0564
ISSN digital: 0392- 7091

BC: Articoli scritti da F. Li Bergolis

Valutazione della risposta alla terapia in un paziente con amiloidosi AL e basse concentrazioni della catena leggera libera monoclonale
Evaluation of response to treatment in a patient with light chain amyloidosis and low free light chain burden
M. Basset \| P. Milani \| F. Russo \| M. Nuvolone \| F. Lavatelli \| T. Bosoni \| L. Pirolini \| F. Li Bergolis \| A. Foli \| R. Albertini \| G. Palladini \| G. Merlini \|
<p>Evaluation of response to treatment in a patient with light chain amyloidosis and low free light chain burden. In patients with light chain (AL) amyloidosis, reduction of amyloidogenic circulating free light chain (FLC) concentration translates in improvement of organ dysfunction and is associated with an increase in overall survival. Validated criteria for hematologic response to therapy are based on FLC quantification. However, patients with a difference between involved and uninvolved FLC (dFLC) <50 mg/L are not evaluable for hematologic response. Here we report the case of a 69 year old man with AL (λ) amyloidosis with renal involvement, presenting a low-FLC burden (dFLC 41 mg/L) at diagnosis. After two lines of treatment, a profound reduction of amyloidogenic FLC (dFLC 0 mg/L) was associated with an improvement of organ dysfunction. This case emphasizes the role of FLC assessment in the monitoring also of patients with a low-dFLC burden.</p><p> </p>
Biochimica Clinica ; 43(1) e4-e6 Casi Clinici - Case Report

La misura delle catene leggere libere indentifica la ricaduta di malattia e orienta per una rivalutazione della tipizzazione dell’amiloide in una paziente con amiloidosi AL
Free light measurement identifies relapse and prompts to reconsider amyloid typing in a patient with AL amyloidosis
P. Milani \| M. Basset \| F. Russo \| M. Nuvolone \| F. Lavatelli \| T. Bosoni \| L. Pirolini \| F. Li Bergolis \| A. Foli \| R. Albertini \| G. Palladini \| G. Merlini \|
<p>The detection and quantification of amyloidogenic light-chains (LC) is necessary for diagnosis and evaluation of response in AL amyloidosis. A 69 years old woman was initially diagnosed, in another center, with AL-<span style="font-family:calibri,sans-serif; font-size:11.0pt">λ</span> amyloidosis with renal and soft tissue involvement in December 2001. After 4 cycles of therapy with melphalan and dexamethasone serum and urine immunofixation were negative and, after cycle 6, complete remission was confirmed. Free light chain (FLC) ratio was normal until June 2006, when proteinuria increased, and an elevated k-FLC concentration with abnormal k/<span style="font-family:calibri,sans-serif; font-size:14.6667px">λ</span>-ratio was documented. We repeated the abdominal fat aspirate for amyloid typing by immune-electron microscopy that revealed k-LC deposits. The diagnosis was AL-k. A relapse was documented and the patient was started on bortezomib and dexamethasone therapy. After 8 cycles, complete remission was obtained. In this case, FLC allowed the identification of the amyloidogenic-LC, enabling the detection of relapse.</p>
Biochimica Clinica ; 42(2) e15-e17 Casi clinici - Case report

Utilità del saggio Hevylite nella gestione clinica di una paziente affetta da amiloidosi AL con gammopatia biclonale
Usefulness of the Hevylite assay in the management of a patient with AL amyloidosis and biclonal gammopathy
V. Valentini \| F. Lavatelli \| P. Milani \| F. Russo \| M. Basset \| T. Bosoni \| L. Pirolini \| F. Li Bergolis \| G. Palladini \| G. Merlini \|
<p>Patients with AL amyloidosis often have small monoclonal components (MCs) difficult to quantify by densitometry. IgA are the most problematic, due to anodic migration and possible masking under proteins migrating in β zone. We evaluated the usefulness of the Hevylite assay (Binding Site, Birmingham UK), at diagnosis and during follow-up, in a patient with AL amyloidosis and biclonal gammopathy. At diagnosis serum immunofixation identified an IgGλ and an IgAλ band (the last one not reliably quantifiable in capillary electrophoresis). The κ serum free light chain (FLC) concentration was 4.94 mg/L and λ 26 mg/L (κ/λ ratio 0.19). The Hevylite test showed both IgGλ and IgAλ above the reference limits, with abnormal κ/λ ratios. After treatment, a 27% decrease in IgGλ and a 56% decrease in IgAλ concentration were documented by Hevylite, which was the only mean to quantify the monoclonal components in this patient.</p>
Biochimica Clinica ; 40(2) e12-e15 Casi clinici - Case report