Purpurin suppresses Salmonella invasion of host cells by reducing the secretion of T3SS-1 effector proteins by Zhenxu Shi, Zhimin Guo, Siqi Li, Chenxiao Jiang, Jianfeng Wang, Xuming Deng, Hongtao Liu, Jiazhang Qiu

“…Subsequent studies revealed that PPR had no effect on the natural growth of bacteria and was not cytotoxic to host cells. A mechanistic study revealed that PPR effectively inhibits the secretion of T3SS-1 in ST. …”
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A dynamic peripheral immune landscape during human pregnancy by Xiuxing Liu, Lei Zhu, Zhaohao Huang, Zhaohuai Li, Runping Duan, He Li, Lihui Xie, Xiaozhen Chen, Wen Ding, Binyao Chen, Yuehan Gao, Juan Su, Xianggui Wang, Wenru Su

“…Here, we conducted single-cell RNA sequencing on peripheral blood mononuclear cells from pregnant women at different stages of pregnancy to elucidate the dynamic transcriptional changes in the maternal immune system. Gradual reduced cytotoxicity phenotype in highly variable cytotoxic T and natural killer cell types were observed during pregnancy. …”
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Impact of antibody architecture and paratope valency on effector functions of bispecific NKp30 x EGFR natural killer cell engagers by Ammelie Svea Boje, Lukas Pekar, Katharina Koep, Britta Lipinski, Brian Rabinovich, Andreas Evers, Carina Lynn Gehlert, Steffen Krohn, Yanping Xiao, Simon Krah, Rinat Zaynagetdinov, Lars Toleikis, Sven Poetzsch, Matthias Peipp, Stefan Zielonka, Katja Klausz

“…In this work, we constructed NK cell engagers (NKCEs) based on NKp30-targeting single domain antibodies (sdAbs) that redirect the cytotoxic potential of NK cells toward epidermal growth factor receptor (EGFR)-expressing tumor cells. …”
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Optimization and characterization studies of poultry waste valorization for peptone production using a newly Egyptian Bacillus subtilis strain by Hajar Saeed, Anthony Ragaey, Ziad Samy, Viola Ashraf, Aly ElMostafa, Norhan Ahmad, Enjy Bebawy, Nour ElHoda M. Sorour, Salwa M. El-Sayed, Ashraf Bakry, Naglaa Ebeed, Hesham Elhariry, Thanaa El-Noby, Samah H. Abu-Hussien

“…The produced peptone exhibited minimal cytotoxicity at lower concentrations (≤ 1 mg/mL), with cell viability exceeding 94% against normal human skin fibroblast (HSF) cells. …”
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Physicochemical Properties and Bioreactivity of Sub‐10 μm Geogenic Particles: Comparison of Volcanic Ash and Desert Dust by Ines Tomašek, Julia Eychenne, David E. Damby, Adrian J. Hornby, Manolis N. Romanias, Severine Moune, Gaëlle Uzu, Federica Schiavi, Maeva Dole, Emmanuel Gardès, Mickael Laumonier, Clara Gorce, Régine Minet‐Quinard, Julie Durif, Corinne Belville, Ousmane Traoré, Loïc Blanchon, Vincent Sapin

“…We assessed cellular responses (cytotoxic and pro‐inflammatory effects) to acute particle exposures (24 hr) in monocultures at the air‐liquid interface using two types of cells of the human airways: BEAS‐2B bronchial epithelial cells and A549 alveolar type II epithelial cells. …”
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Durvalumab and tremelimumab in patients with advanced rare cancer: a multi-centre, non-blinded, open-label phase II basket trialResearch in context by Abha A. Gupta, Anna Tinker, Derek Jonker, Rahma Jamal, Hal Hirte, Eric W. Winquist, Quincy Chu, Christian Kollmannsberger, Ralph Wong, Thierry Alcindor, Torsten O. Nielsen, Ming Tsao, Tricia R. Cottrell, Diane Provencher, John Hilton, Monika K. Krzyżanowska, Christine Elser, Sebastien Hotte, Joana Sederias, Siwei Zhang, Wei Tu, Janet Dancey

“…Summary: Background: Dual inhibition of cytotoxic T-lymphocyte associated protein 4 (CTLA-4) and programmed death ligand 1 (PD-L1) has been shown to be an effective treatment strategy in many cancers. …”
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Pan-inhibition of super-enhancer-driven oncogenic transcription by next-generation synthetic ecteinascidins yields potent anti-cancer activity by Max Cigrang, Julian Obid, Maguelone Nogaret, Léane Seno, Tao Ye, Guillaume Davidson, Philippe Catez, Pietro Berico, Clara Capelli, Clara Marechal, Amélie Zachayus, Clémence Elly, Marie Jose Guillen Navarro, Marta Martinez Diez, Gema Santamaria Nunez, Tsai-Kun Li, Emmanuel Compe, Pablo Avilés, Irwin Davidson, Jean-Marc Egly, Carmen Cuevas, Frédéric Coin

“…Consequently, these compounds exhibit cytotoxic activity across distinct subpopulations of metastatic melanoma cells and inhibit tumor proliferation, including those resistant to current therapies. …”
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GrB-Fc-KS49, an anti-EMP2 granzyme B fusion protein therapeutic alters immune cell infiltration and suppresses breast cancer growth by Ana Alvarez de Cienfuegos, Lawrence H Cheung, Khalid A Mohamedali, Michael G Rosenblum, Brian Aguirre, Cheng-Hsiang Lu, Anubhav Chandla, Nidhi Kejriwal, Lucia Liu, Ann M Chan, SuYin Kok, Sergio Duarte, David Casero, Madhuri Wadehra

“…Background Granzyme B (GrB) is a key effector molecule, delivered by cytotoxic T lymphocytes and natural killer cells during immune surveillance to induce cell death. …”
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Integrated microfluidics-based construction of anti-BTN2A2 gel droplet cell preparations for non-invasive tumor-infiltrating lymphocyte therapy by Yishen Tian, Jingxuan Li, Na Yang, Yang Zhao, Jiancao Zuo, Hang Xiong, Yiwen Pan, Li Xiao, Min Su, Feng Han, Zhixu He, Rong Hu

“…Specifically, the cell preparation exerted its anti-tumor effects through multiple mechanisms: Firstly, the surface BTN2A2 antibodies effectively inhibited the proliferation of Tregs and MDSCs within the tumor microenvironment; Secondly, leveraging the T cell antigen receptors (TCRs) present in the blood T cells, which were similar to those of tumor-infiltrating lymphocytes, significantly enhanced their targeting and cytotoxic capabilities; Furthermore, the CMP component within the droplets effectively promoted the infiltration of T cells into tumor tissues. …”
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Enzyme-responsive vitamin D-based micelles for paclitaxel-controlled delivery and synergistic pancreatic cancer therapy by Diana Peixoto, João M. Ravasco, Barbara Blanco-Fernandez, Francisco Veiga, Angel Concheiro, João Conde, Ana Cláudia Paiva-Santos, Carmen Alvarez-Lorenzo

“…PTX-loaded VD3 micelles also exhibited prominent cell internalization and induced a considerable cytotoxic synergistic effect against human PDAC cells (BxPC-3 cells) in 2D and 3D cell culture models compared with free PTX. …”
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Local and distant response to intratumoral immunotherapy assessed by immunoPET in mice by Aurélien Marabelle, Louis Meyblum, Lambros Tselikas, Thierry de Baere, Sandrine Susini, Fréderic Deschamps, Baptiste Bonnet, Céline Chevaleyre, Benoit Jego, Dimitri Kereselidze, Vincent Lebon, Charles Truillet

“…However, a comprehensive understanding of the local and systemic distribution of ICBs following intratumoral administration, as well as their impact on distant tumors, remains crucial for optimizing their therapeutic potential.To comprehensively investigate the distribution patterns following the intratumoral and intravenous administration of radiolabeled anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and to assess its corresponding efficacy in both injected and non-injected tumors, we conducted an immunoPET imaging study.Methods CT26 and MC38 syngeneic colorectal tumor cells were implanted subcutaneously on both flanks of Balb/c and C57Bl/6 mice, respectively. …”
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Engineered T cells secreting αB7-H3-αCD3 bispecific engagers for enhanced anti-tumor activity against B7-H3 positive multiple myeloma: a novel therapeutic approach by Punchita Rujirachaivej, Teerapong Siriboonpiputtana, Kornkan Choomee, Kamonlapat Supimon, Thanich Sangsuwannukul, Pucharee Songprakhon, Krissada Natungnuy, Piriya Luangwattananun, Pornpimon Yuti, Mutita Junking, Pa-thai Yenchitsomanus

“…For KMS-12-PE cells, significant cytotoxic effects were observed even at an E:T ratio of 1:1, with 27.2 ± 3.7% (p = 0.0004), 44.4 ± 3.7% (p < 0.0001), and 68.6 ± 9.2% (p = 0.0004) cytotoxicity at E:T ratios of 1:1, 5:1, and 10:1, respectively. …”
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TCR-engaging scaffolds selectively expand antigen-specific T-cells with a favorable phenotype for adoptive cell therapy by Marco Donia, Özcan Met, Julie Westerlin Kjeldsen, Sine Reker Hadrup, Inge Marie Svane, Arianna Draghi, Anders Handrup Kverneland, Christina Heeke, Siri Amanda Tvingsholm, Marcus Svensson Frej, Vibeke Mindahl Rafa, Ulla Kring Hansen, Maria Ormhøj, Alexander Tyron, Agnete W P Jensen, Mohammad Kadivar, Amalie Kai Bentzen, Kamilla K Munk, Gitte N Aasbjerg, Jeppe S H Ternander, Tripti Tamhane, Christian Schmess, Samuel A. Funt, Søren Nyboe Jakobsen

“…Successful ACT relies on ex vivo expansion of large numbers of desired T-cells with strong cytotoxic capacity and in vivo persistence, which constitutes the greatest challenge to current ACT strategies. …”
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Soluble and cell-based markers of immune checkpoint inhibitor-associated nephritis by Sandra M Herrmann, Riley Fadden, Ryan J Sullivan, Kerry L Reynolds, Harish Seethapathy, Meghan E Sise, Shruti Gupta, Alexandra-Chloe Villani, Qiyu Wang, Daiana Moreno, Destiny Harden, R Neal Smith, Ivy A Rosales, Robert B Colvin, Sarah Chute, Lynn D Cornell, Nancy J Yang, Sara Barmettler, Sophia Wells, Jocelyn Farmer

“…Because ICIs block immune checkpoint pathways that include cytotoxic T lymphocyte antigen 4 (CTLA4), we hypothesized that biomarkers of immune dysregulationpreviously defined in patients with congenital CTLA4 deficiency, including elevated soluble interleukin-2 receptor alpha (sIL-2R) and flow cytometric cell-based markers of B and T cell dysregulation in peripheral blood may aid the diagnosis of ICI-nephritis.Methods A retrospective cohort of patients diagnosed with ICI-nephritis was compared with three prospectively enrolled control cohorts: ICI-treated controls without immune-related adverse events, patients not on ICIs with hemodynamic acute kidney injury (hemodynamic AKI), and patients not on ICIs with biopsy proven acute interstitial nephritis from other causes (non-ICI-nephritis). sIL-2R level and flow cytometric parameters were compared between groups using Wilcoxon rank sum test or Kruskal-Wallis test. …”
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Control of BKPyV-DNAemia by a Tailored Viro-Immunologic Approach Does Not Lead to BKPyV-Nephropathy Progression and Development of Donor-Specific Antibodies in Pediatric Kidney Tra... by Michela Cioni, Stella Muscianisi, Marica De Cicco, Sabrina Basso, Hans H. Hirsch, Iris Fontana, Laura Catenacci, Jessica Bagnarino, Mariangela Siciliano, Oriana Montana Lampo, Gloria Acquafredda, Lou Tina Diana Boti, Jessica Rotella, Eleonora Bozza, Jennifer Zumelli, Kristiana Mebelli, Fausto Baldanti, Massimo Cardillo, Marco Zecca, Arcangelo Nocera, Mario Luppi, Enrico Verrina, Fabrizio Ginevri, Patrizia Comoli

“…All patients with DNAemia cleared BKPyV after having mounted a virus-specific cellular immune response, and no biopsy-proven BKPyV-nephropathy was observed. The presence of cytotoxic populations directed to the BKPyV Large-T (LT) antigen early after transplantation protected kidney recipients from developing BKPyV replication, and the appearance of LT-specific T cells in viruric patients prevented the development of BKPyV-DNAemia. …”
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Transcriptomic Profiling and Tumor Microenvironment Classification Reveal Unique and Dynamic Immune Biology in HIV-Associated Kaposi Sarcoma by Jihua Yang, Ayse Ece Cali Daylan, Aleksei Shevkoplias, Ekaterina Postovalova, Meng Wang, Andrey Tyshevich, Matthew Lee, Hiba Narvel, Ksenia Zornikova, Nara Shin, Nikita Kotlov, Luca Paoluzzi, Changcheng Zhu, Balazs Halmos, Xingxing Zang, Haiying Cheng

“…Notably, HIV-negative KS samples showed alterations in NK cell-mediated immunity and cytotoxic response pathways, whereas HIV-positive samples exhibited changes in growth regulation and protein kinase activity pathways at the time of initial diagnosis. …”
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ROR1 CAR-T cells and ferroptosis inducers orchestrate tumor ferroptosis via PC-PUFA2 by Dan Li, Wenjie Zhang, Ruiheng Wang, Shufeng Xie, Yixin Wang, Wanxin Guo, Zixuan Huang, Chaoqun Lu, Liang Shan, Han Liu, Lifang Ma, Xumin Hou, Zhenshu Xu, Jiayi Wang

“…In addition, ROR1-targeting CAR-T cells were developed to assess cytotoxic activity against ROR1+ tumor cells, and the effect of cytokine stimulation on their efficacy was evaluated. …”
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Multiomics profiling reveals the benefits of gamma-delta (γδ) T lymphocytes for improving the tumor microenvironment, immunotherapy efficacy and prognosis in cervical cancer by Xiaofeng Wang, Chen Li, Jie Chen, Zhiqiang Wu, Zhen Zhang, Junyi Li, Lu Yu, Yong Guan, Yuhan Zhang, Yuanjie Cao, Yancheng Liu, Hui Bai, Shaochuan Liu, Miaomiao Gao, Chenglu Lu, Zhen Tao, Zhiyong Yuan

“…First, γδ T cells exert direct cytotoxic effects in the tumor microenvironment of cervical cancer through the dynamic evolution of cellular states at both poles. …”
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Pilot clinical trial of neoadjuvant toll-like receptor 7 agonist (Imiquimod) immunotherapy in early-stage oral squamous cell carcinoma by Angela J. Yoon, Richard D. Carvajal, Evan M. Graboyes, John M. Kaczmar, William G. Albergotti, Alexandra E. Kejner, Scott H. Troob, Elizabeth Philipone, Jean-Sebastien Anoma, Kent E. Armeson, Elizabeth G. Hill, Mary S. Richardson, Tina R. Woods, Bhishamjit S. Chera, Farzad Nourollah-Zadeh, Byung J. Lee, Subramanya Pandruvada, Antonis Kourtidis, Christina Kingsley, Elizabeth C. O’Quinn, Stephanie Mills, Victoria C. Jordan, Mike Spencer, Danielle Fails, Trevor D. McKee, Mark Zaidi, Alan Brisendine, Shane Horn, Shikhar Mehrotra, Besim Ogretmen, Jason G. Newman

“…An increase in functional helper and cytotoxic T-cells significantly contributed to a reduction in tumor (R=0.54 and 0.55, respectively). …”
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Early treatment discontinuation in patients with deficient mismatch repair or microsatellite instability high metastatic colorectal cancer receiving immune checkpoint inhibitors by Chiara Cremolini, Sara Lonardi, Filippo Pietrantonio, Julien Taieb, David Tougeron, Margherita Ambrosini, Michael J Overman, Alice Boilève, Lisa Salvatore, Rosine Guimbaud, Priya Jayachandran, Frank A Sinicrope, Thibault Mazard, Javier Ros, Vincenzo Nasca, Simon Pernot, Emily Alouani, Marie Decraecker, Emilie Hafliger, Pauline Parent

“…Baseline characteristics were well balanced between the two groups: 22% in both groups received both anti-programmed death-(ligand) 1 (anti-PD-(L)1) + anti-cytotoxic T-lymphocyte antigen-4 (anti-CTLA-4); all others received anti-PD-(L)1 monotherapy. …”
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