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Lee T, Finney E, Jha A, Dorste A, Lee R. Approaches and Barriers to Biomarker Discovery. Urol Clin North Am 2023; 50:1-17. [DOI: 10.1016/j.ucl.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Di Benedetto P, Guggino G, Manzi G, Ruscitti P, Berardicurti O, Panzera N, Grazia N, Badagliacca R, Riccieri V, Vizza CD, Radchenko G, Liakouli V, Ciccia F, Cipriani P, Giacomelli R. Interleukin-32 in systemic sclerosis, a potential new biomarker for pulmonary arterial hypertension. Arthritis Res Ther 2020; 22:127. [PMID: 32487240 PMCID: PMC7268373 DOI: 10.1186/s13075-020-02218-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 05/13/2020] [Indexed: 02/07/2023] Open
Abstract
Background Pulmonary arterial hypertension (PAH) is a severe complication of systemic sclerosis (SSc), associated with a progressive elevation in pulmonary vascular resistance and subsequent right heart failure and death. Due to unspecific symptoms, the diagnosis of PAH is often delayed. On this basis, it is of great value to improve current diagnostic methods and develop new strategies for evaluating patients with suspected PAH. Interleukin-32 (IL-32) is a proinflammatory cytokine expressed in damaged vascular cells, and the present study aimed to assess if this cytokine could be a new biomarker of PAH during SSc. Methods The IL-32 expression was evaluated in the sera and skin samples of 18 SSc-PAH patients, 21 SSc patients without PAH, 15 patients with idiopathic PAH (iPAH) and 14 healthy controls (HCs), by enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry (IHC). Receiver-operating characteristic (ROC) curves were performed to evaluate the cut-off of IL-32 in identifying patients with PAH. Furthermore, in SSc patients, correlation analyses were performed between IL-32 sera levels and mean pulmonary artery pressure (mPAP) evaluated by right heart catheterization (RHC) and systolic pulmonary artery pressure (sPAP), obtained by echocardiography. Additionally, the number of skin IL-32+ cells was correlated with modified Rodnan skin score (mRSS). Results In SSc-PAH patients, IL-32 sera levels were significantly higher when compared with SSc patients without PAH and patients affected by iPAH. The analysis of ROC curve showed that IL-32 sera levels above 11.12 pg/ml were able to predict patients with PAH (sensitivity = 90%, specificity = 100%). Furthermore, the IL-32 sera levels of patients with SSc correlated with both mPAP and sPAP. In the skin derived from SSc-PAH patients, the number of IL-32+ cells was significantly increased when compared with the skin derived from SSc patients without PAH, correlating with the mRSS. Conclusion Our study suggested that sera determination of IL-32 may be a promising approach to evaluate the presence of PAH in SSc patients and together with longitudinal future studies could help to increase the understanding how these biomarkers mirror the vascular changes and the inflammatory process during SSc.
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Affiliation(s)
- Paola Di Benedetto
- Clinical Pathology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Giuliana Guggino
- Rheumatology Section, Department of Internal Medicine, University of Palermo, Palermo, Italy
| | - Giovanna Manzi
- Department of Cardiovascular and Respiratory Sciences, Sapienza University of Rome, Rome, Italy
| | - Piero Ruscitti
- Division of Rheumatology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Onorina Berardicurti
- Division of Rheumatology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Noemi Panzera
- Clinical Pathology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Nicolò Grazia
- Clinical Pathology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Roberto Badagliacca
- Department of Cardiovascular and Respiratory Sciences, Sapienza University of Rome, Rome, Italy
| | - Valeria Riccieri
- Department of Internal Medicine and Medical Specialities, Sapienza University of Rome, Rome, Italy
| | - Carmine Dario Vizza
- Department of Cardiovascular and Respiratory Sciences, Sapienza University of Rome, Rome, Italy
| | - Ganna Radchenko
- Secondary Hypertension Department with Pulmonary Hypertension Center, State Institute National Scientific Center "MD Strazhesko Institute of Cardiology" of Ukrainian National Academy of Medical Science, Kyiv, Ukraine
| | - Vasiliki Liakouli
- Rheumatology Section, Department of Clinical and Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Francesco Ciccia
- Rheumatology Section, Department of Clinical and Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Paola Cipriani
- Division of Rheumatology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Roberto Giacomelli
- Division of Rheumatology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
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Choi YS, Kim S, Oh YS, Cho S, Hoon Kim S. Elevated serum interleukin-32 levels in patients with endometriosis: A cross-sectional study. Am J Reprod Immunol 2019; 82:e13149. [PMID: 31099938 DOI: 10.1111/aji.13149] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/06/2019] [Accepted: 05/13/2019] [Indexed: 12/21/2022] Open
Abstract
PROBLEM Recently, interleukin (IL)-32 has been suggested to be involved in the pathogenesis of endometriosis. The aim of this study was to investigate whether serum IL-32 level might be used as a biomarker for diagnosis of endometriosis. METHOD OF STUDY We recruited the serum samples of 50 patients with histologically confirmed endometriosis and 35 controls. Enzyme-linked immunosorbent assay was used to analyze the serum IL-32, IL-6, IL-10, tumour necrosis factor (TNF)-α, IL-1β, and CA-125 levels in patients with and without the disease and the diagnostic potentials of the cytokines were assessed using receiver operating characteristic curve and the area under the curve (AUC). RESULTS Among evaluated cytokines, only serum IL-32 levels showed significant differences between patients with and without endometriosis (1111.24 ± 149.59 vs 631.10 ± 120.23 ng/mL, P = 0.018, respectively). When the diagnostic power of serum IL-32 was evaluated, the AUC was 0.638 (95% confidence interval (CI): 0.521-0.766, P = 0.031). When serum IL-32 levels were combined with serum CA-125 levels, the AUC was increased to 0.749 (95% CI: 0.640-0.858, P < 0.001) with sensitivity and specificity of 60.0% and 82.9% at cutoff value of 0.640, which led to detect 25 more cases of endometriosis than the use of serum CA 125 with the cutoff value of 35 IU/mL (36/50 vs 11/50, P < 0.001) without sacrificing the specificity of the marker. CONCLUSION Serum IL-32 levels are elevated in patients with endometriosis, and with combination of serum CA-125 levels, it may serve as a potential biomarker for endometriosis.
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Affiliation(s)
- Young Sik Choi
- Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.,Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Sinae Kim
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Young Sang Oh
- Department of Obstetrics & Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - SiHyun Cho
- Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Hoon Kim
- Department of Obstetrics & Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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