Abstract
Purpose
IgA nephropathy (IgAN) patients with monoclonal light-chain deposition may be at potential risk of hematological progression. However, whether the clinical characteristics of the patients with predominant lambda or kappa light-chain deposition were consistent with monoclonal light-chain deposition is limited to anecdotes.
Methods
We retrospectively studied patients in whom immunofluorescence showed IgA-alone deposits (n = 617) between January 2016 and January 2020. We divided the patients into two groups, the predominant lambda or kappa light-chain deposition group and the control group. Predominant lambda or kappa light-chain deposition was defined as the deposition intensity of kappa or lambda being + − and the other deposition intensity being ≥ 2 + .
Results
Nineteen patients had predominant lambda or kappa light-chain deposition. The patients had a median age of 32 years. The median proteinuria was 0.9 g/day. The median eGFR was 79.8 ml/min per 1.73 m2. Two patients had a mildly abnormal FLC ratio, but serum immunofixation electrophoresis showed polyclonal immunoglobulin. Eighteen patients showed lambda light chain-dominated deposition. In electron microscopy, organized structures in dense deposits were not observed in all patients. Nine patients with proteinuria ≥ 1.0 g/day received corticosteroids and immunosuppressants. The median follow-up time was 21 months. The rate of proteinuria remission was 50%. The clinical and pathological characteristics and outcomes were not significantly different between the predominant lambda or kappa light-chain deposition group and the control group.
Conclusion
The result for IgAN patients with predominant kappa/lambda light-chain deposition seemed to be the same as that of IgAN patients with light-chain codeposition. However, as this was a single-center study with a small size, further multicenter studies and long-term follow-up are needed to confirm our findings.
Similar content being viewed by others
References
Trimarchi H, Barratt J, Cattran DC, Cook HT, Coppo R, Haas M, Liu ZH, Roberts IS, Yuzawa Y, Zhang H, Feehally J, Ig ANCWGotIINN, the Renal Pathology S, Conference P (2017) Oxford classification of IgA nephropathy 2016: an update from the IgA Nephropathy Classification Working Group. Kidney Int 91(5):1014–1021. https://doi.org/10.1016/j.kint.2017.02.003
Nagae H, Tsuchimoto A, Tsuruya K, Kawahara S, Shimomura Y, Noguchi H, Masutani K, Katafuchi R, Kitazono T (2017) Clinicopathological significance of monoclonal IgA deposition in patients with IgA nephropathy. Clin Exp Nephrol 21(2):266–274. https://doi.org/10.1007/s10157-016-1275-7
Vignon M, Cohen C, Faguer S, Noel LH, Guilbeau C, Rabant M, Higgins S, Hummel A, Hertig A, Francois H, Lequintrec M, Vilaine E, Knebelmann B, Pourrat J, Chauveau D, Goujon JM, Javaugue V, Touchard G, El Karoui K, Bridoux F (2017) The clinicopathologic characteristics of kidney diseases related to monotypic IgA deposits. Kidney Int 91(3):720–728. https://doi.org/10.1016/j.kint.2016.10.026
Jennette JC (1988) The immunohistology of IgA nephropathy. Am J Kidney Dis 12(5):348–352. https://doi.org/10.1016/s0272-6386(88)80022-2
Lai KN, Chan KW, Mac-Moune F, Ho CP, Yan KW, Lam CW, Vallance-Owen J (1986) The immunochemical characterization of the light chains in the mesangial IgA deposits in IgA nephropathy. Am J Clin Pathol 85(5):548–551. https://doi.org/10.1093/ajcp/85.5.548
Coppo R (2017) Clinical and histological risk factors for progression of IgA nephropathy: an update in children, young and adult patients. J Nephrol 30(3):339–346. https://doi.org/10.1007/s40620-016-0360-z
Lai KN, Lai FM, Lo ST, Lam CW (1988) Light chain composition of IgA in IgA nephropathy. Am J Kidney Dis 11(5):425–429. https://doi.org/10.1016/s0272-6386(88)80056-8
Haas M (2005) Histology and immunohistology of IgA nephropathy. J Nephrol 18(6):676–680
Orfila C, Rakotoarivony J, Manuel Y, Suc JM (1988) Immunofluorescence characterization of light chains in human nephropathies. Virchows Archiv A Pathol Anat Histopathol 412(6):591–594. https://doi.org/10.1007/BF00844295
Smith SM (1990) IgA nephropathy: characterization of the light chains. Clin Nephrol 34(2):93–94
Lai KN, Tang SC, Schena FP, Novak J, Tomino Y, Fogo AB, Glassock RJ (2016) IgA nephropathy. Nat Rev Dis Primers 2:16001. https://doi.org/10.1038/nrdp.2016.1
Katzmann JA, Kyle RA, Benson J, Larson DR, Snyder MR, Lust JA, Rajkumar SV, Dispenzieri A (2009) Screening panels for detection of monoclonal gammopathies. Clin Chem 55(8):1517–1522. https://doi.org/10.1373/clinchem.2009.126664
Leung N, Bridoux F, Batuman V, Chaidos A, Cockwell P, D’Agati VD, Dispenzieri A, Fervenza FC, Fermand JP, Gibbs S, Gillmore JD, Herrera GA, Jaccard A, Jevremovic D, Kastritis E, Kukreti V, Kyle RA, Lachmann HJ, Larsen CP, Ludwig H, Markowitz GS, Merlini G, Mollee P, Picken MM, Rajkumar VS, Royal V, Sanders PW, Sethi S, Venner CP, Voorhees PM, Wechalekar AD, Weiss BM, Nasr SH (2019) The evaluation of monoclonal gammopathy of renal significance: a consensus report of the International Kidney and Monoclonal Gammopathy Research Group. Nat Rev Nephrol 15(1):45–59. https://doi.org/10.1038/s41581-018-0077-4
Hutchison CA, Plant T, Drayson M, Cockwell P, Kountouri M, Basnayake K, Harding S, Bradwell AR, Mead G (2008) Serum free light chain measurement aids the diagnosis of myeloma in patients with severe renal failure. BMC Nephrol 9:11. https://doi.org/10.1186/1471-2369-9-11
Bhutani G, Nasr SH, Said SM, Sethi S, Fervenza FC, Morice WG, Kurtin PJ, Buadi FK, Dingli D, Dispenzieri A, Gertz MA, Lacy MQ, Kapoor P, Kumar S, Kyle RA, Rajkumar SV, Leung N (2015) Hematologic characteristics of proliferative glomerulonephritides with nonorganized monoclonal immunoglobulin deposits. Mayo Clin Proc 90(5):587–596. https://doi.org/10.1016/j.mayocp.2015.01.024
Lai KN, To WY, Li PK, Leung JC (1996) Increased binding of polymeric lambda-IgA to cultured human mesangial cells in IgA nephropathy. Kidney Int 49(3):839–845. https://doi.org/10.1038/ki.1996.116
Leung JC, Tang SC, Chan DT, Lui SL, Lai KN (2002) Increased sialylation of polymeric lambda-IgA1 in patients with IgA nephropathy. J Clin Lab Anal 16(1):11–19. https://doi.org/10.1002/jcla.2035
Acknowledgements
We thank the staff of the department of Nephrology, Xijing Hospital.
Funding
This study was supported by grants from the Natural Science Basic Research Program of Shaanxi province (2021JM-233).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
All the authors declared no competing interests.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Sun, S., Di, W., Li, R. et al. The clinicopathological characteristics and outcomes of IgA nephropathy with predominant lambda or kappa light-chain deposition. Int Urol Nephrol 54, 1705–1712 (2022). https://doi.org/10.1007/s11255-021-03062-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11255-021-03062-8