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Cystatin C and cystatin SN as possible soluble tumor markers in malignant uveal melanoma Cover

Cystatin C and cystatin SN as possible soluble tumor markers in malignant uveal melanoma

Radiology and Oncology
Volume 56 (2022): Issue 1 (March 2022)
By: Maria A. Dikovskaya,  Galina S. Russkikh,  Konstantin V. Loktev,  Thomas P. Johnston,  Margarita M. Gevorgyan,  Natalya P. Voronina,  Valery V. Chernykh,  Alexander N. Trunov and  Tatiana A. Korolenko  
Open Access
|Dec 2021
Figures & tables

Figures & Tables

Figure 1

Ocular fundus of a normal eye, and eye with choroidal melanoma. (A) Ocular fundus. Normal healthy eye (left) versus eye with choroidal melanoma (right; dia = 8 mm and thickness = 2.4 mm). (B) Ultrasound image of the choroidal melanoma (thickness = 3.1 mm).

Figure 2

Cystatin C concentration in various biological matrices in healthy individuals. Concentration of cystatin C in each biological fluid (mean ± standard deviation [s.d.]; n = 28 [n = 13 healthy controls ≤ 40 years old + n = 15 healthy controls 41–60 years old]), since Table 1 shows a significant increase in cystatin C concentrations in serum and intraocular fluid (IOF) in 61–80 year old healthy controls, and thus, this age group was not included; cerebral spinal fluid (CSF) was obtained from an additional and separate group of cancer-free neurosurgical patients (n = 8) for the determination of the cystatin C concentration as described in the Materials and methods section. a Significant difference (p < 0.001) from mean values indicated with the same letter. b Significant difference (p < 0.001) from mean values indicated with the same letter. c Significant difference (p < 0.01) from mean values indicated with the same letter. d Significant difference (p < 0.01) from mean values indicated with the same letter. e Significant difference (p < 0.01) from the mean value indicated with the same letter.

Figure 3

Cystatin SN concentration in various biological matrices in healthy individuals. Concentration of cystatin SN in each biological fluid (mean ± standard deviation [s.d.]; n = 28 [n = 13 healthy controls ≤ 40 years old + n = 15 healthy controls 41–60 years old]), since Table 1 shows a significant increase in the cystatin SN concentration in the serum of 61–80 year old healthy controls, and thus, this age group was not included; cerebral spinal fluid (CSF) was obtained from an additional and separate group of cancer-free neurosurgical patients (n = 8) for the determination of the cystatin SN concentration as described in the Materials and methods section. a Significant difference (p < 0.001) from the mean value indicated with the same letter. b Significant difference (p < 0.05) from mean values indicated with the same letter. c Significant difference (p < 0.001) from the mean value indicated with the same letter. d Significant difference (p < 0.01) from the mean value indicated with the same letter. e Significant difference (p < 0.001) from the mean value indicated with the same letter.

Figure 4

Cystatin C (A) and cystatin SN (B) concentrations and their ratio (C) in the serum and tear fluid of patients with uveal melanoma. (A) Values represent the mean ± standard deviation (s.d.) of n = 15 healthy controls (mean age = 53.1 ± 3.4 years) and n = 51 of 57 total patients with uveal melanoma (mean age = 51.7 ± 2.8 years; 6 patients were > 60 years old and were therefore not included). (B) Values represent the mean ± s.d. of n = 15 healthy controls (mean age = 53.1 ± 3.4 years) and n = 51 of 57 total patients with uveal melanoma (mean age = 51.7 ± 2.8 years; 6 patients were > 60 years old and were therefore not included). (C) Values represent the mean ± s.d. of n = 15 healthy controls (mean age = 53.1 ± 3.4 years) and n = 51 of 57 total patients with uveal melanoma (mean age = 51.7 ± 2.8 years; 6 patients were > 60 years old and were therefore not included). * = significant difference (p < 0.001) from the mean value for healthy controls in each biological matrix

Figure 5

Concentration of cystatin C (A) and cystatin SN (B) in intraocular fluid of patients with uveal melanoma versus healthy controls. (A) Values represent the mean ± standard deviation (s.d.) of n = 7 healthy controls (mean age = 57.5 ± 1.9 years) and n = 18 of 57 total uveal melanoma patients selected based on an age close to the mean age of the 7 healthy controls (mean age = 55.9 ± 3.2 years; n = 18). (B) Values represent the mean ± s.d. of n = 7 healthy controls (mean age = 57.5 ± 1.9 years) and n = 18 of 57 total uveal melanoma patients selected based on an age close to the mean age of the 7 healthy controls (mean age = 55.9 ± 3.2 years; n = 18). * = significant difference (p < 0.001) from mean value for healthy controls; IOF = intraocular fluid

Concentrations of cystatin C and cystatin SN in biological fluids of healthy individuals as a function of age (Mean ± s_d_)

GroupsInhibitorSerum (ng/mL)Tears (ng/mL)IOF (ng/mL)
HealthyCystatin C561 ± 10.0296 ± 11.1-
(≤ 40 years) [n = 13]Cystatin SN2.24 ± 0.200.49 ± 0.30
HealthyCystatin C539 ± 111256 ± 82.3414 ± 28
(41–60 years) [n = 15]Cystatin SN2.96 ± 0.700.6 ± 0.352.7 ± 1.40
HealthyCystatin Ca1,341 ± 177382 ± 116a844 ± 113
(61–80 years) [n = 9]Cystatin SNb4.77 ± 0.100.75 ± 0.142.18 ± 0.20
DOI: https://doi.org/10.2478/raon-2021-0049 | Journal eISSN: 1581-3207 | Journal ISSN: 1318-2099
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Language: English
Page range: 83 - 91
Submitted on: Aug 16, 2021
Accepted on: Oct 21, 2021
Published on: Dec 22, 2021
Published by: Association of Radiology and Oncology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
uveal melanoma,
cystatins,
biomarkers,
diagnosis
Related subjects:
Medicine,
Clinical medicine,
Internal medicine,
Haematology, oncology,
Radiology

© 2021 Maria A. Dikovskaya, Galina S. Russkikh, Konstantin V. Loktev, Thomas P. Johnston, Margarita M. Gevorgyan, Natalya P. Voronina, Valery V. Chernykh, Alexander N. Trunov, Tatiana A. Korolenko, published by Association of Radiology and Oncology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 56 (2022): Issue 1 (March 2022)
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