The transcriptional regulator Lrp activates the expression of genes involved in the biosynthesis of tilimycin and tilivalline enterotoxins in Klebsiella oxytoca by Miguel A. De la Cruz, Hilda A. Valdez-Salazar, Diana Rodríguez-Valverde, Santa Mejia-Ventura, Nayely Robles-Leyva, Tania Siqueiros-Cendón, Quintín Rascón-Cruz, Nancy León-Montes, Jorge Soria-Bustos, Fernando Chimal-Cázares, Roberto Rosales-Reyes, María L. Cedillo, Jorge A. Yañez-Santos, J. Antonio Ibarra, Javier Torres, Jorge A. Girón, James G. Fox, Miguel A. Ares

“…Both enterotoxins are non-ribosomal peptides synthesized by enzymes encoded in two divergent operons clustered in a pathogenicity island. …”
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Characterization and Probiotic Potential of <i>Levilactobacillus brevis</i> DPL5: A Novel Strain Isolated from Human Breast Milk with Antimicrobial Properties Against Biofilm-Formi... by Ivan Iliev, Galina Yahubyan, Elena Apostolova-Kuzova, Mariyana Gozmanova, Daniela Mollova, Iliya Iliev, Lena Ilieva, Mariana Marhova, Velizar Gochev, Vesselin Baev

“…The genome also contains multiple biosynthetic gene clusters such as lanthipeptide class IV, Type III polyketide synthase (T3PKS), and ribosomally synthesized, and post-translationally modified peptides (RiPP-like compounds), all of which are associated with antibacterial properties. …”
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Phenotypic and Complete Reference Whole Genome Sequence Analyses of Two <i>Paenibacillus</i> spp. Isolates from a Gray Wolf (<i>Canis lupus</i>) Gastrointestinal Tract by Jessika L. Bryant, Jennifer McCabe, C. Cristoph Klews, MiCayla Johnson, Ariel N. Atchley, Thomas W. Cousins, Maya Barnard-Davidson, Kristina M. Smith, Mark R. Ackermann, Michael Netherland, Nur A. Hasan, Peter A. Jordan, Evan S. Forsythe, Patrick N. Ball, Bruce S. Seal

“…The genomes of both bacteria encoded enzymes involved with the metabolism of complex starches and lipids, such as lyases and pectinases, along with encoding antimicrobials such as lanthipeptides, lasso peptides, and cyclic-lactone-autoinducers. No pernicious virulence genes were identified in the WGS of either bacterial isolate. …”
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Fatal toxoplasmic encephalitis triggered by anti-TNF therapy by Rodrigo A. Montoro, Michael Moran, Katherine A. Overmyer, Andrew Periaccante, Joshua J. Coon, Swapnil Lanjewar, Laura J. Knoll, Rob Striker

“…Post-mortem mass spectrometry and proteomic analysis of her cerebrospinal fluid show several T. gondii peptides. A literature review suggests that risks associated with anti-TNF-α therapy for patients who are seropositive for T. gondii have not been adequately recognized. …”
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Reduced Expression of Antimicrobial Protein Secretory Leukoprotease Inhibitor and Clusterin in Chronic Rhinosinusitis with Nasal Polyps by Yanran Huang, Ming Wang, Yu Hong, Xiangting Bu, Ge Luan, Yang Wang, Ying Li, Hongfei Lou, Chengshuo Wang, Luo Zhang

“…Introduction. Antimicrobial peptides and proteins (AMPs) constitute the first line of defense against pathogenic microorganisms in the airway. …”
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Exploring the Mechanism of <i>Clostridium autoethanogenum</i> Protein for Broiler Growth Based on Gut Microbiota and Serum Metabolomics by Chunqiao Shan, Yan Liu, Sisi Liu, Chuang Li, Chaoxin Ma, Hongmin Yu, Juan Li, Guotuo Jiang, Jing Tian

“…Metabolomic analyses indicated that the effect of incorporating CAP into the diet on serum metabolites primarily focused on organic acids and their derivatives, small peptides, amino acid derivatives, and oxidized lipids. …”
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Comparative Performance of Ante-Mortem Diagnostic Assays for the Identification of <i>Mycobacterium bovis</i>-Infected Domestic Dogs (<i>Canis lupus familiaris</i>) by Conor O’Halloran, Paul Burr, Danielle A. Gunn-Moore, Jayne C. Hope

“…The production of antigen-specific tumour necrosis factor-alpha (TNF-α) by PBMC in response to a cocktail of ESAT-6 and CFP-10 peptides correlated very strongly with the overall IGRA results, suggesting future diagnostic potential. …”
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Virulence factor discovery identifies associations between the Fic gene family and Fap2+ fusobacteria in colorectal cancer microbiomes by Geicho Nakatsu, Duhyun Ko, Monia Michaud, Eric A. Franzosa, Xochitl C. Morgan, Curtis Huttenhower, Wendy S. Garrett

“…Finally, we demonstrate that Fic proteins are synthesized by F. animalis as Fic peptides are detectable in F. animalis monoculture supernatants. …”
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Mapping knowledge landscapes and emerging trends in artificial intelligence for antimicrobial resistance: bibliometric and visualization analysis by Zhongli Wang, Zhongli Wang, Gaopei Zhu, Shixue Li, Shixue Li

“…Keyword analysis identified six enduring research clusters from 2014 to 2024: sepsis, artificial neural networks, antimicrobial resistance, antimicrobial peptides, drug repurposing, and molecular docking, demonstrating the sustained integration of AI in antimicrobial therapy development. …”
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Exploring Innovative Approaches for the Analysis of Micro- and Nanoplastics: Breakthroughs in (Bio)Sensing Techniques by Denise Margarita Rivera-Rivera, Gabriela Elizabeth Quintanilla-Villanueva, Donato Luna-Moreno, Araceli Sánchez-Álvarez, José Manuel Rodríguez-Delgado, Erika Iveth Cedillo-González, Garima Kaushik, Juan Francisco Villarreal-Chiu, Melissa Marlene Rodríguez-Delgado

“…This review highlights the potential of biosensors as advanced analytical methods, including a section on prospects that address the challenges that could lead to significant advancements in environmental monitoring, highlighting the necessity of testing the new sensing developments under real conditions (composition/matrix of the samples), which are often overlooked, as well as the study of peptides as a novel recognition element in microplastic sensing.…”
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The trend of phylogenetic and epitope variations of SARS-CoV-2 Omicron sub-lineages in Iran by Mehdi Shabani, Ahmad Nejati, Jila Yavarian, Jila Yavarian, Kaveh Sadeghi, Sevrin Zadheidar, Akram Sadat Ahmadi, Monire Ghadirali, Arghavan Zebardast, Adel Abedi, Mohammad Hossein Najmi, Nazanin-Zahra Shafiei-Jandaghi, Talat Mokhtari-Azad

“…CD4+), protein (higher for non-spike vs. spike), and clades (higher for 21L, 22F, 23B, 23H, 23D, and 24B vs. 24A and 24C).ConclusionHerein, the increased conservation of CD8+ epitopes compared to CD4+ and B cell epitopes is probably attributable to the shorter length of the peptides associated with CD8+ epitopes. The high rate of T-cell epitopes conservation in non-spike proteins among different sub-lineages of the Omicron in this study highlighted the importance of cell-mediated immunity and suggested that non-spike proteins might be more attractive targets for future SARS-CoV-2 vaccines.…”
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Genome-wide association study of the antibody response to <i>Corynebacterium pseudotuberculosis</i> in sheep by J. Kyselová, L. Tichý, J. Marková, A. Gurgul, Z. Sztankóová, K. Vališ, S. Šlosárková, K. Kavanová, M. Beinhauerová, T. Szmatola, T. Szmatola

“…These include antigen processing and presentation of exogenous peptides via major histocompatibility complex (MHC) class I and II, Th17 mucosal cell differentiation, cellular autophagy, and phagosome-related mechanisms. …”
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Dynamic development of gut microbiota and metabolism during and after weaning of kittens by Hong Zhang, Yang Ren, Siyu Wei, Hongli Jin, Yizhen Wang, Mingliang Jin

“…A total of 45 significantly altered metabolites (P < 0.05, n = 20) were identified, primarily related to vitamins, steroids, peptides, organic acids, lipids, and carbohydrates. …”
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Limnospira (Cyanobacteria) chemical fingerprint reveals local molecular adaptation by Théotime Roussel, Cédric Hubas, Sébastien Halary, Mathias Chynel, Charlotte Duval, Jean-Paul Cadoret, Tarik Meziane, Léa Vernès, Claude Yéprémian, Cécile Bernard, Benjamin Marie

“…The molecules that most distinguished the different Limnospira geographic groups were sugars, lipids, peptides, photosynthetic pigments, and antioxidants. …”
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EPIGENETICS TODAY AND TOMORROW by B. F. Vanyushin

“…The therapeutic action of many known small biologically active peptides seems to be expressed mainly at the epigenetic level. …”
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Targeted detection of endogenous LINE-1 proteins and ORF2p interactions by Mathias I. Nielsen, Justina C. Wolters, Omar G. Rosas Bringas, Hua Jiang, Luciano H. Di Stefano, Mehrnoosh Oghbaie, Samira Hozeifi, Mats J. Nitert, Alienke van Pijkeren, Marieke Smit, Lars ter Morsche, Apostolos Mourtzinos, Vikram Deshpande, Martin S. Taylor, Brian T. Chait, John LaCava

“…Immunoassays for endogenous ORF2p have been problematic, producing apparent false positives due to cross-reactivities, and shotgun MS has not yielded reliable evidence of ORF2p peptides in biological samples. Results Here we present targeted mass spectrometry assays, selected and parallel reaction monitoring (SRM and PRM, respectively) to detect and quantify L1 ORF1p and ORF2p at their endogenous abundances. …”
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High-throughput untargeted metabolomics reveals metabolites and metabolic pathways that differentiate two divergent pig breeds by S. Bovo, M. Bolner, G. Schiavo, G. Galimberti, F. Bertolini, S. Dall’Olio, A. Ribani, P. Zambonelli, M. Gallo, L. Fontanesi

“…About half of the 100 discriminant metabolites had a higher concentration in one or the other breed (48 in Italian Large White pigs, with a prevalence of amino acids and peptides; 52 in Italian Duroc pigs, with a prevalence of lipids). …”
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A novel α-conotoxin [D1G, ΔQ14] LvIC decreased mouse locomotor activity by Wen Wang, Wen Wang, Meiting Wang, Huanbai Wang, Weifeng Xu, Conggang Wang, Jie Pei, Xiaodan Li, Dongting Zhangsun, Dongting Zhangsun

“…Despite their widespread presence, the functions of nAChRs are not yet fully understood. α-Conotoxins, which are peptides derived from the venom of marine cone snails, target different subtypes of nAChRs. …”
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Treatment of pancreatic cancer with irreversible electroporation and intratumoral CD40 antibody stimulates systemic immune responses that inhibit liver metastasis in an orthotopic... by Partha Ray, Tomoko Hayashi, Karen Messer, Stephen Schoenberger, Aaron Miller, Dennis Carson, Sara McArdle, Zbigniew Mikulski, Jayanth S Shankara Narayanan, Suna Erdem, Herve Tiriac, Minya Pu, Rebekah R White

“…T-cells from the IRE+CD40 Ab group recognized significantly more peptides representing candidate neoantigens than did T-cells from the IRE or untreated control groups.Conclusions IRE can induce local tumor regression and neoantigen-specific immune responses. …”
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CCL21-CCR7 blockade prevents neuroinflammation and degeneration in Parkinson’s disease models by Felipe Saceanu Leser, Flavio de Souza Júnyor, Iohanna Bianca Pagnoncelli, Anna Beatriz Delgado, Isabelle Medeiros, Ana Clara Campanelli Nóbrega, Brenda da Silva Andrade, Maiara Nascimento de Lima, Nícolas Emanoel da Silva, Laurent Jacob, Kevin Boyé, Luiz Henrique Medeiros Geraldo, Alessandra Mendonça Teles de Souza, Tatiana Maron-Gutierrez, Hugo Castro-Faria-Neto, Cristian Follmer, Carolina Braga, Gilda Angela Neves, Anne Eichmann, Luciana Ferreira Romão, Flavia Regina Souza Lima

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