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Errante F, Pallecchi M, Bartolucci G, Frediani E, Margheri F, Giovannelli L, Papini AM, Rovero P. Retro-Inverso Collagen Modulator Peptide Derived from Serpin A1 with Enhanced Stability and Activity In Vitro. J Med Chem 2024. [PMID: 38470817 DOI: 10.1021/acs.jmedchem.4c00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The rising demand for novel cosmeceutical ingredients has highlighted peptides as a significant category. Based on the collagen turnover modulation properties of SA1-III, a decapeptide derived from a serine protease inhibitor (serpin A1), this study focused on designing shorter, second-generation peptides endowed with improved properties. A tetrapeptide candidate was further modified employing the retro-inverso approach that uses d-amino acids aiming to enhance peptide stability against dermal enzymes. Surprisingly, the modified peptide AAT11RI displayed notably high activity in vitro, as compared to its precursors, and suggested a mode of action based on the inhibition of collagen degradation. It is worth noting that AAT11RI showcases stability against dermal enzymes contained in human skin homogenates due to its rationally designed structure that hampers recognition by most proteases. The rational approach we embraced in this study underscored the added value of substantiated claims in the design of new cosmeceutical ingredients, representing a rarity in the field.
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Affiliation(s)
- Fosca Errante
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Sesto Fiorentino, FI 50019, Italy
- Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, University of Florence, Sesto Fiorentino, FI 50019, Italy
- Espikem s.r.l., Prato, PO 59100, Italy
| | - Marco Pallecchi
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Sesto Fiorentino, FI 50019, Italy
| | - Gianluca Bartolucci
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Sesto Fiorentino, FI 50019, Italy
| | - Elena Frediani
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Firenze, FI 50139, Italy
| | - Francesca Margheri
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Firenze, FI 50139, Italy
| | - Lisa Giovannelli
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Firenze, FI 50139, Italy
| | - Anna M Papini
- Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, University of Florence, Sesto Fiorentino, FI 50019, Italy
- Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, FI 50019, Italy
| | - Paolo Rovero
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Sesto Fiorentino, FI 50019, Italy
- Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, University of Florence, Sesto Fiorentino, FI 50019, Italy
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Zou M, Sheng J, Ruan M, Zhou W, Ye F, Yang G, Qian Y, Wang J, Wang R, Liu S, Liu H. Perineural invasion confers poorer clinical outcomes in patients with T1/T2 intrahepatic cholangiocarcinoma: a single center, retrospective cohort study. J Gastrointest Oncol 2023; 14:2500-2510. [PMID: 38196519 PMCID: PMC10772696 DOI: 10.21037/jgo-23-950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/21/2023] [Indexed: 01/11/2024] Open
Abstract
Background Intrahepatic cholangiocarcinoma (ICC) poses a significant clinical challenge, demanding a thorough understanding of prognostic indicators for effective patient management. Despite reports suggesting the impact of perineural invasion (PNI) on the prognosis of early-stage ICC patients, there has been a dearth of comprehensive research specifically targeting this subgroup. This study seeks to investigate the influence of PNI on survival outcomes in early-stage ICC patients and aims to enhance the prognostic value of the American Joint Committee on Cancer (AJCC) T category. Methods A cohort of 268 early-stage (T1-T2N0M0) ICC patients, who underwent curative-intent resection (R0) between 2011 and 2015 at the Eastern Hepatobiliary Surgery Hospital, were enrolled in this study. Lasso and Cox regression analyses were employed to explore differences in clinical and prognostic data. Kaplan-Meier curves were generated to illustrate the clinical significance of the combination of PNI and T category. Results Among the 268 patients, 24.6% exhibited PNI. Patients with PNI demonstrated shorter recurrence-free survival (RFS) [median RFS: 16 months (interquartile range, 9.5-19 months)] and overall survival (OS) [median OS: 16.53 months (interquartile range, 10-25 months)]. PNI emerged as an independent risk factor for both RFS and OS in T1- and T2-stage patients (all P<0.05), whereas tumor size was only an independent risk factor for OS (P=0.004). PNI was associated with all prognostic markers for ICC patients, including gender, jaundice, cholangitis, hepatitis B virus (HBV) infection, cancer antigen 199 (CA199), preoperative serum albumin, and preoperative platelet count (all P<0.05). However, there was no significant difference in RFS (P=0.270) and OS (P=0.360) between T2 patients without PNI and T1 patients with PNI. Conclusions This study underscores PNI as a robust prognostic factor in early-stage ICC, emphasizing the necessity of incorporating PNI into the AJCC T category for precise risk stratification. Clinically, understanding the impact of PNI on survival outcomes can guide tailored treatment strategies for early ICC patients.
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Affiliation(s)
- Minghao Zou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Jie Sheng
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Minghao Ruan
- The First Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Wenxuan Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Feiyang Ye
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Gaowei Yang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Ye Qian
- Department of Clinical Medicine, Qilu Medical University, Zibo, China
| | - Jian Wang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Ruoyu Wang
- The First Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Suiyi Liu
- Department of Engineering, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Hui Liu
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China
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