Using the 5th fraction of thymosin, it was possible to enhance the capacities of peripheral blood lymphocytes to form rosettes with sheep erythrocytes and to respond to PHA in those cases of cancer or sarcoidosis in which these functions were depressed. Moreover, the 5th thymosin fraction increased the resistance of CBA mice to infection with virulent H37Rv mycobacteria and augmented their ability to acquire delayed hypersensitivity.
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J Proteomics
January 2025
Istituto di Scienze e Tecnologie Chimiche (SCITEC) "Giulio Natta", Consiglio Nazionale delle Ricerche, Rome, Italy. Electronic address:
The immunomodulatory, anti-inflammatory and regenerative properties of the human amniotic mesenchymal stromal cells (hAMSCs) secretome are acknowledged but the understanding of the specific bioactive components remains incomplete. To address these limitations, the present investigation aimed to profile the proteins and peptides content of the hAMSC secretome through sample pretreatment and fractionation on 10 kDa molecular cut-off FASP (Filter Aided Sample Preparation) device and LC-MS analysis. The filter retained protein fraction underwent trypsin digestion, while the unretained was collected unchanged for intact small proteins and peptides analysis.
View Article and Find Full Text PDFProteomics Clin Appl
January 2025
Suzhou Cancer Center Core Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, P.R. China.
Purpose: The recurrence of esophageal squamous cell carcinoma (ESCC) in radiation therapy treatment presents a complex challenge due to its resistance to radiation. However, the mechanism underlying the development of radioresistance in ESCC remains unclear. In this study, we aim to uncover the mechanisms underlying radioresistance in ESCC cells and identify potential targets for radiosensitization.
View Article and Find Full Text PDFAnal Bioanal Chem
November 2022
Division of Chemical Metrology & Analytical Science, National Institute of Metrology, Beijing, 100029, China.
Thymalfasin is an important peptide drug widely used for the single or combination treatment of hepatitis, sepsis, cancer, and immunodeficiency. Accurate purity assessment of thymalfasin material is essential for thymalfasin certified reference materials (CRMs) production and analytical method validation, in which comprehensive determination of thymalfasin-related impurities is required to avoid quantitative bias. In this study, liquid chromatography-high-resolution mass spectrometry (LC-hrMS) methods have been established to comprehensively characterize and quantify thymalfasin-related impurities using a thymalfasin China Pharmacopoeia (ChP) standard and then successfully applied to three commercial thymalfasin materials.
View Article and Find Full Text PDFAnimal Model Exp Med
December 2022
National Center for Bioproducts (BIOCEN), Bejucal, Cuba.
Background: BioCen-128 is a new active pharmaceutical ingredient composed of a specific bovine thymic fraction of a polypeptide nature. Positive results of similar thymus extracts have been shown to be effective in delaying the processes associated with aging, immunosenescence and Alzheimer's disease (AD), where the inflammation plays an important role. Because of the anti-inflammatory potential of BioCen-128, the aim of this study was to evaluate the granuloma model induced by a cotton wool implantation and the model induced by intracerebroventricular (ICV) administration of streptozotocin (STZ).
View Article and Find Full Text PDFInt J Radiat Oncol Biol Phys
November 2022
Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat‑sen University Cancer Center, Guangzhou, China. Electronic address:
Purpose: To evaluate the efficacy of thymosin α1 in management of radiation pneumonitis (RP) in patients with locally advanced non-small cell lung cancer (LANSCLC) treated with concurrent chemoradiotherapy (CCRT).
Methods And Materials: This phase 2, single-arm trial enrolled patients with unresectable LANSCLC of 18 to 75 years' old and an Eastern Cooperative Oncology Group performance status of 0 to 1. Eligible patients received definitive CCRT and weekly thymosin α1 from the start of CCRT until 2 months after CCRT.
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