Absence of Survival Impact from Hepatitis During Immunotherapy in 193 Patients with Advanced Hepatocellular Carcinoma – An Observational Study from Taiwan

Chi-Han Lin,1,2,&ast; Yung-Chia Kuo,1– 3,&ast; Hsuan-Chih Kuo,1– 3,&ast; Ching-Ting Wang,4 Shi-Ming Lin,1,5 Alan Chao-Wei Lee,1,6 Ming-Chin Yu,1,6,7 Wei-Chen Lee,1,6 Cherry Chiao-Erh Chen,2,3 Jason Chia-Hsun Hsieh1– 3 1College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; 2Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, 333, Taiwan; 3Division of Hematology-Oncology, Department of Internal Medicine, New Taipei City Municipal TuCheng Hospital, New Taipei City, 236, Taiwan; 4Registered Nurse, Case Manager of Nursing Department, Chang Gung Memorial Hospital, Linkou, Taoyuan, 333, Taiwan; 5Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou and College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan; 6Department of Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, 333, Taiwan; 7Department of Surgery, New Taipei City Municipal TuCheng Hospital, New Taipei City, 236, Taiwan&ast;These authors contributed equally to this workCorrespondence: Jason Chia-Hsun Hsieh, Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, No. 5, Fu-Hsin Street, Gueishan District, Taoyuan City, 333, Taiwan, Tel +886-3-3281200 Ext 8825, Email [email protected]: Hepatitis often occurs after initiating immune checkpoint inhibitor (ICI) treatment. The time and grade of hepatitis after ICI starts and the prognostic role of immune-related hepatitis in patients with advanced hepatocellular carcinoma (aHCC) remain unclear.Methods: In this real-world analysis, we enrolled aHCC patients receiving ICIs, documented the highest level of liver enzymes during/after ICIs, and analyzed the survival impact of different hepatitis patterns.Results: One hundred and ninety-three aHCC patients receiving ICIs were recruited. During ICIs, 88.6% of patients experienced aspartate transaminase (AST) elevations (Grade III/IV: 7.8%). For alanine transaminase (ALT), 81.3% had elevated levels (Grade III/IV: 3.6%), and 41.5% of patients had elevated bilirubin levels (Grade 3/4: 6.7%). The median AST, ALT, and total bilirubin values significantly increased after ICI treatment initiated (all p < 0.001) and, similarly, after excluding progressive disease (p = 0.014, p = 0.002, p < 0.001). The median time of hepatitis occurrence is from the 4.0th to 15.9th weeks. Multivariable analysis showed that patterns of liver enzyme change of AST and total bilirubin in patients receiving ICIs significantly correlate to overall survival (OS, p = 0.009 and 0.001, respectively). After ICI termination, patients with elevated bilirubin (p = 0.003) and AST (p = 0.005) would indicate poor survival, with adjustment of viral hepatitis and ICI responses.Conclusion: Hepatitis emerges between the 4th and 20th weeks post-ICI initiation. Changes in liver enzymes during ICI therapy do not directly affect OS, implying the safety of ICI use when corticosteroids are promptly administered if clinically indicated.Keywords: hepatitis, immune checkpoint inhibitor, advanced hepatocellular carcinoma, liver enzymes, overall surviva

Loss of expression of TGF-βs and their receptors in chronic skin lesions induced by sulfur mustard as compared with chronic contact dermatitis patients

<p>Abstract</p> <p>Background</p> <p>Sulfur mustard (SM) is a blister-forming agent that has been used as a chemical weapon. Sulfur mustard can cause damage in various organs, especially the skin, respiratory system, and eyes. Generally, the multiple complications of mustard gas result from its alkalizing potency; it reacts with cellular components like DNA, RNA, proteins, and lipid membranes.</p> <p>TGF-β is a multi-functional cytokine with multiple biological effects ranging from cell differentiation and growth inhibition to extracellular matrix stimulation, immunosuppression, and immunomodulation. TGF-β has 3 isoforms (TGF-β 1, 2, 3) and its signaling is mediated by its receptors: R1, R2 and intracellular Smads molecules.</p> <p>TGF-β has been shown to have anti-inflammatory effects. TGF-βs and their receptors also have an important role in modulation of skin inflammation, proliferation of epidermal cells, and wound healing, and they have been implicated in different types of skin inflammatory disorders.</p> <p>Methods</p> <p>Seventeen exposed SM individuals (48.47 ± 9.3 years), 17 chronic dermatitis patients (46.52 ± 14.6 years), and 5 normal controls (44.00 ± 14.6 years) were enrolled in this study.</p> <p>Evaluation of TGF-βs and their receptors expressions was performed by semiquantitative RT-PCR. Only TGF1was analyzed immunohistochemically.</p> <p>Results</p> <p>Our results showed significant decreases in the expression percentages of TGF-β 1, 2 and R1, R2 in chemical victims in comparison with chronic dermatitis and normal subjects and significant decreases in the intensity of R1 and R2 expressions in chemical victims in comparison with chronic dermatitis and normal controls. (P value < 0.05)</p> <p>Conclusions</p> <p>TGF-βs and their receptors appear to have a noticeable role in chronic inflammatory skin lesions caused by sulfur mustard.</p