Journal of Nanobiotechnology最新文献

{"title":"Renal-clearable and tumor-retained nanodots overcoming metabolic reprogramming to boost mitochondrial-targeted photodynamic therapy in triple-negative breast cancer.","authors":"Defan Yao, Yanshu Wang, Xue Dong, Yanhong Chen, Ding-Kun Ji, Rongfeng Zou, Yuelin Huang, Weixi Huang, Dengbin Wang","doi":"10.1186/s12951-025-03264-7","DOIUrl":"10.1186/s12951-025-03264-7","url":null,"abstract":"<p><strong>Background: </strong>Targeting tumor metabolism reprogramming has demonstrated a synergistic antitumor effect in photodynamic therapy of triple-negative breast cancer (TNBC). However, such a combination therapeutic regimen has encountered challenges, such as limited photosensitizer bioavailability and severe drug toxicity.</p><p><strong>Methods and results: </strong>Herein, ultrasmall metal-organic frameworks (MOFs) nanodots (MSPC) that encapsulate metabolism inhibitors and mitochondria-targeted photosensitizers are designed and fabricated for synergistic photodynamic therapy (PDT) of TNBC. The MSPC exhibits an acidic-sensitive drug release, leading to glutathione depletion and mitochondrial respiration suppression. Significantly, MSPC substantially reduces intracellular adenosine triphosphate (ATP) levels by simultaneously disrupting oxidative phosphorylation and impeding aerobic glycolysis. Therefore, the glutathione depletion combined with metabolism inhibitor increases oxidative stress, which improves the efficacy of mitochondria-targeted PDT. Additionally, the increased retention of photosensitizers within tumors, facilitated by aggregation-enhanced retention (AER) effect, extends the time window for long-term fluorescence/photoacoustic imaging-guided PDT of TNBC. MSPC-sensitized PDT significantly suppresses tumor growth with a single-dose injection and repeatable PDT.</p><p><strong>Conclusions: </strong>In summary, these renal-clearable and aggregation-enhanced tumor-retained nanodots indicate the feasibility of overcoming resistance to reactive oxygen species induced by metabolic reprogramming, thus holding significant implications for boosting PDT of TNBC.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"195"},"PeriodicalIF":10.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11892270/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143585940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances and challenges in metal-based antimicrobial materials: a review of strategies to combat antibiotic resistance.","authors":"Chuanda Zhu, Zhenli Diao, Yuanyuan Yang, Jun Liao, Chao Wang, Yanglonghao Li, Zichao Liang, Pengcheng Xu, Xinyu Liu, Qiang Zhang, Lidong Gong, Qiang Ma, Ling Liang, Zhiqiang Lin","doi":"10.1186/s12951-025-03249-6","DOIUrl":"10.1186/s12951-025-03249-6","url":null,"abstract":"<p><p>Despite the availability of a series of classical antibiotic drugs, bacterial infections continue to represent a significant and urgent threat to global human health. The emergence of drug-resistant bacteria and the slow pace of antibiotic development have rendered current treatment methods inadequate in meeting the clinical demands of bacterial infections. Consequently, there is an increasingly urgent and vital need for the development of safe, efficient, and alternative novel antimicrobial agents in the medical and healthcare field. Over the past five years, there has been a notable expansion in the field of nanomedicine with regard to the prevention and control of infectious diseases. The objective of this article is to provide a comprehensive review of the latest research developments in the field of metal nanomaterials for medical antimicrobial therapy. We begin by delineating the gravity of the bacterial infection crisis, subsequently undertaking a comprehensive examination of the potential mechanisms through which nanoparticles may combat bacterial infections and the specific applications of these nanomaterials in the treatment of diverse infectious diseases. In conclusion, we eagerly anticipate the future development directions of metal nanomaterials in the field of antimicrobial therapy. We believe that with continuous technological advancements and innovations, this field will make even more outstanding contributions to safeguarding human health and well-being.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"193"},"PeriodicalIF":10.6,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11892188/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143585937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Probiotic nanocomposite materials with excellent resistance, inflammatory targeting, and multiple efficacies for enhanced treatment of colitis in mice.","authors":"Yuewen Huang, Hongting Cai, Huipeng Liu, Lixiang Wang, Guangfu Feng, Zizi Ding, Yanquan Fei, Aike Li, Jun Fang","doi":"10.1186/s12951-025-03240-1","DOIUrl":"10.1186/s12951-025-03240-1","url":null,"abstract":"<p><p>The occurrence of inflammatory bowel disease (IBD) is relevant to impaired intestinal mucosal barrier and disordered gut microbiota, subsequently leading to excessive production of reactive oxygen species (ROS) and elevated levels of inflammatory factors. Traditional therapies focus on inhibiting inflammation, but the vast majority involve non-targeted systemic administration, whose long-term use may result in potential side effects. Oral microbial therapy has exhibited great application prospects currently in IBD treatment; however, its progress has been slowed by issues with deficient bioavailability, poor targeting of colitis, and low therapeutic efficacy. Consequently, it is exceedingly desirable to develop a strategy by which probiotics can be endowed with additional anti-inflammatory and antioxidant properties, as well as enhanced targeting of the inflamed intestine. Herein, we present an innovative therapeutic strategy for encapsulating probiotic Bacillus coagulans spores with rosmarinic acid (RA) and silk fibroin (SF). Probiotics in spore morphology possessed strong gastrointestinal environmental resistance; RA alleviated oxidative damage by scavenging ROS and inhibited inflammatory responses; SF assisted probiotics release and colonize in the inflamed intestine. We demonstrated the therapeutic efficacy of probiotic composite materials in a colitis mouse model, which significantly alleviated a series of colitis symptoms, inhibited inflammatory cytokine storms, restored the balance of the gut microbiota, and downregulated inflammation-related signaling pathways. We are optimistic that the utilization of therapeutic nanocoating to modify probiotics will open up novel avenues for future microbial therapy targeting IBD.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"188"},"PeriodicalIF":10.6,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889847/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extracellular vesicle-mediated bidirectional communication between the liver and other organs: mechanistic exploration and prospects for clinical applications.","authors":"Wenhui Mo, Yunke Peng, Yanyi Zheng, Shenglan Zhao, Liling Deng, Xiaoli Fan","doi":"10.1186/s12951-025-03259-4","DOIUrl":"10.1186/s12951-025-03259-4","url":null,"abstract":"<p><p>The liver, functioning as an endocrine organ, secretes a variety of substances that influence the activities of other body organs. Conversely, molecules generated by organs such as bone, the gut, and adipose tissue can also impact liver function. Accumulating evidence suggests bidirectional communication between the liver and other organs. However, research on how extracellular vesicles (EVs), which transport active molecular mediators, contribute to this interorgan communication is still in its nascent stages. EVs are capable of transporting functional molecules, including lipids, nucleic acids, and proteins, thereby affecting recipient cells across different organs at the biological level. This review examines the role of EVs in facilitating bidirectional communication between the liver and other organs such as bone, the cardiovascular system, the gut, the pancreas, the brain, the lungs, the kidneys, and adipose tissue. It explores their potential in disease treatment and highlights the challenges in understanding EV-mediated interorgan interactions. The contribution of mediator-carrying EVs to two-way communication between the liver and other organs remains an area of ongoing investigation. Future research will provide a more comprehensive theoretical foundation to clarify the precise mechanisms governing communication between the liver and other organs, pinpoint medical targets, and expand the application of EVs within the realm of precision medicine.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"190"},"PeriodicalIF":10.6,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889855/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microenvironment-responsive NIR-IIb multifunctional nanozyme platform for bacterial imaging and specialized anti-anaerobic bacteria periodontal therapy.","authors":"Suai Lin, Tiehan Cui, Yuxin Jiang, Jialiang Xie, Da Zhong, Junkai Jiang, Dan Deng, Mengzhen Zhao, Chengzhou Xue, Shiyu Gan, Jiaxuan Qiu, Xiaolei Wang","doi":"10.1186/s12951-025-03270-9","DOIUrl":"10.1186/s12951-025-03270-9","url":null,"abstract":"<p><p>Periodontitis is a chronic inflammatory disease caused by plaque. In order to remove pathogens and promote tissue repair, the following steps need to be taken simultaneously: localizing the diseased area, improving the anaerobic microenvironment, as well as addressing the anti-inflammatory and osteogenic needs. This study aims to address these issues by developing a responsive near-infrared-IIb nanozyme system (DMUP), assembled from lanthanide-doped down-converted nanoparticles and multi-enzymatically active nanozyme. DMUP binds to bacterial membranes via the bacterial targeting peptide ubiquicidin_29-41 (UBI_29-41). Upon responding to the inflammatory microenvironment, it releases manganese (Mn) nanozyme and paeonol (Pae), and localized infected areas by fluorescent bacterial imaging in the near-infrared IIb (NIR-IIb) region. In particular, the released Mn nanozyme reacts with hydrogen peroxide in the inflammatory microenvironment to generate oxygen (O₂) in situ, thereby improving the anoxic environment to inhibit anaerobic bacteria. On the other hand, as a metal oxide nanozyme, Mn nanozyme scavenges reactive oxygen species (ROS) by mimicking the cascade process of superoxide dismutase and catalase. The phenolic antioxidant Pae shifts macrophages from pro-inflammatory (M1-type) to anti-inflammatory (M2-type) through the Akt/mTOR pathway. It can synergize with Mn nanozyme to regulate the inflammatory microenvironment, thereby reducing inflammation, promoting osteogenic genes expression, and accelerating periodontal tissues regeneration.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"189"},"PeriodicalIF":10.6,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889803/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-stimuli-responsive pectin-coated dendritic mesoporous silica nanoparticles with Eugenol as a sustained release nanocarrier for the control of tomato bacterial wilt.","authors":"Xueping Guo, Huiyan Li, Zhihao Li, Ziqi Cui, Guangming Ma, Aisha Khalfan Nassor, Yi Guan, Xiaohong Pan","doi":"10.1186/s12951-025-03239-8","DOIUrl":"10.1186/s12951-025-03239-8","url":null,"abstract":"<p><strong>Background: </strong>Environmentally responsive nanoscale biocide delivery system enhances smart, regulated, and synergistic biocide application with precise biocide release. In this study, pectin-modified dendritic mesoporous silica nanoparticles (DMSNs) was used as a carrier to successfully construct a microenvironment-responsive (pH, temperature and enzyme) eugenol nano-biocide delivery system for the control of Ralstonia solanacearum infection.</p><p><strong>Results: </strong>The results showed that the specific surface area, pore size and surface activity of DMSNs significantly influence the biocide loading of eugenol, and the biocide loading capability was up to 72.50%. Eu@DMSNs/Pec had significant pH and pectinase stimulating effects, with varying release amounts under different temperature conditions. Compared with eugenol alone, Eu@DMSNs/Pec significantly enhanced the efficacy of eugenol. DMSNs assisted eugenol to induce peroxidation damage, produce ROS (•O₂^-, •OH and ¹O₂), achieve synergistic antibacterial effects, and had better rain erosion resistance and foliar retention rate based on pectin wettability and adhesion. Eu@DMSNs/Pec-FITC showed demonstrated efficient transport characteristics in tomato roots, stems and leaves, which enhanced the control effect on tomato bacterial wilt. In addition, Eu@DMSNs/Pec exert minimal influence on tomato seed germination and root growth, and have low toxicity to non-target organisms such as earthworms. Therefore, Eu@DMSNs/Pec environment-responsive nano-controlled release nanocarrier can effectively achieve accurate biocide release and reduce biocide dosage.</p><p><strong>Conclusion: </strong>This work not only provides a pectin-modified DMSNs-based eugenol nanoscale biocide delivery system in response to specific environmental conditions of R. solanacearum infection but also elucidates the eugenol biocide loading, selective release ability and antibacterial mechanism of the system.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"191"},"PeriodicalIF":10.6,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889862/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NaHS@Cy5@MS@SP nanoparticles improve rheumatoid arthritis by inactivating the Hedgehog signaling pathway through sustained and targeted release of H₂S into the synovium.","authors":"Xue-Xue Zhu, An-Jing Xu, Wei-Wei Cai, Zhi-Jun Han, Shi-Jie Zhang, Bao Hou, Yuan-Yuan Wen, Xing-Yu Cao, Hao-Dong Li, Yue-Qing Du, You-Yi Zhuang, Jing Wang, Xiao-Ran Hu, Xin-Ran Bai, Jia-Bao Su, Ao-Yuan Zhang, Qing-Bo Lu, Ye Gu, Li-Ying Qiu, Lin Pan, Hai-Jian Sun","doi":"10.1186/s12951-025-03286-1","DOIUrl":"10.1186/s12951-025-03286-1","url":null,"abstract":"<p><strong>Background: </strong>Aberrant proliferation and inflammation of fibroblast-like synoviocytes (FLSs) significantly contribute to the pathogenesis of rheumatoid arthritis (RA). Deficiency of hydrogen sulfide (H₂S) is a driving force for the development of RA, and the short half-life of the H₂S-releasing donor sodium hydrosulfide (NaHS) limits its clinical application in RA therapy. Designing a targeted delivery system with slow-release properties for FLSs could offer novel strategies for treating RA.</p><p><strong>Methods: </strong>Herein, we designed a strategy to achieve slow release of H₂S targeted to the synovium, which was accomplished by synthesizing NaHS-CY5@mesoporous silic@LNP targeted peptide Dil (NaHS@Cy5@MS@SP) nanoparticles.</p><p><strong>Results: </strong>Our results demonstrated that NaHS@Cy5@MS@SP effectively targets FLSs, upregulates H₂S and its-producing enzyme cystathionine-γ-lyase (CSE) in the joints of arthritic mice. Overexpression of CSE inhibited the proliferation, migration, and inflammation of FLSs upon lipopolysaccharide (LPS) exposure, effects that were mimicked by NaHS@Cy5@MS@SP. In vivo studies showed that NaHS@Cy5@MS@SP achieved a threefold higher AUC_inf than that of free NaHS, significantly improving the bioavailability of NaHS. Further, NaHS@Cy5@MS@SP inhibited synovial hyperplasia and reduced bone and cartilage erosion in the DBA/1J mouse model of collagen-induced arthritis (CIA), which was superior to NaHS. RNA sequencing and molecular studies validated that NaHS@Cy5@MS@SP inactivated the Hedgehog signaling pathway in FLSs, as evidenced by reductions in the protein expression of SHH, SMO, GLI1 and phosphorylated p38/MAPK.</p><p><strong>Conclusion: </strong>This study highlights NaHS@Cy5@MS@SP as a promising strategy for the controlled and targeted delivery of H₂S to synoviocytes, offering potential for RA management.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"192"},"PeriodicalIF":10.6,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889778/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomically-precise Au₂₂(Lys-Cys-Lys)₁₆ nanoclusters for radiation sensitization.","authors":"Elham Zeinizade, Goonay Yousefalizideh, Parimah Aminfar, Matthew Horn, Lili Ding, Layla Pires, Alina Jaglanian, Lucie Malbeteau, Kristen Harrington, Carla Calçada, Mohamad Dukuray, Brian C Wilson, Marianne Koritzinsky, Juan Chen, Kevin G Stamplecoskie, Gang Zheng","doi":"10.1186/s12951-025-03256-7","DOIUrl":"10.1186/s12951-025-03256-7","url":null,"abstract":"<p><p>Radiotherapy is a leading method for cancer treatment, effectively eliminating cancer cells but often causing collateral damage to surrounding healthy tissue. Radiosensitizers aim to enhance the therapeutic effects of radiotherapy while minimizing harm to normal cells. We recently reported atomically-precise gold nanoclusters, Au₂₂(Lys-Cys-Lys)₁₆, synthesized via a photochemical method coupled with a novel accelerated size-focusing procedure. These nanoclusters exhibit a distinct luminescence emission profile, reflecting exceptional optical purity and the absence of contamination from other nanocluster species. They demonstrate efficient oxygen radicals generation under light irradiation. In this study, we comprehensively evaluated the radiosensitization potential of Au₂₂(Lys-Cys-Lys)₁₆ nanoclusters in vitro and in vivo, alongside their pharmacokinetics, biodistribution and toxicity. The nanoclusters demonstrated high stability under physiological conditions and efficient internalization in tumor cells, achieving dose enhancement factors of 2.0 and 1.6 in KB and 4T1 tumor cells, respectively, under 225 kVp X-ray irradiation. Mechanistic investigations revealed enhanced radiation-induced DNA damage and disruption of DNA repair pathways. The radiosensitizing effects were further validated in radioresistant pancreatic ductal adenocarcinoma cells using the clonogenic assay and γH2AX analysis of double-strand breaks, as well as in a duck chorioallantoic membrane model. With ultra small size (~ 1.7 nm) and favorable surface framework, the nanoclusters exhibited relevant pharmacokinetics (circulation half-life, t₁_/₂ = 10.4 h) and renal clearance. In a KB tumor-bearing mouse model, Au₂₂(Lys-Cys-Lys)₁₆ significantly delayed tumor progression and prolonged survival under 8 Gy irradiation without observed side-effects. These findings establish Au₂₂(Lys-Cys-Lys)₁₆ nanoclusters as a potentially translatable radiosensitizer, advancing cancer radiotherapy strategies.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"185"},"PeriodicalIF":10.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11887354/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overcoming ice: cutting-edge materials and advanced strategies for effective cryopreservation of biosample.","authors":"Miaorong Huang, Minhua Hu, Gengyuan Cai, Hengxi Wei, Sixiu Huang, Enqin Zheng, Zhenfang Wu","doi":"10.1186/s12951-025-03265-6","DOIUrl":"10.1186/s12951-025-03265-6","url":null,"abstract":"<p><p>Cryopreservation techniques have been widely used, especially in biomedical applications and preservation of germplasm resources. Ideally, biological materials would maintain functional integrity as well as a normal structure and can be recovered when needed. However, this tool does not work all the time. Ice formation and growth are the key challenges. The other major reason is that the cryoprotective agents (CPAs) currently used do not meet these needs and are always accompanied by their cytotoxicity. A comprehensive and synergistic approach that focuses on the overall frozen biological system is crucial for the evolution of cryopreservation methods. In this review, we first summarize the fundamental damage mechanisms during cryopreservation, as well as common cryoprotectants and their limitations. Next, we discuss materials that interact with ice to improve cryopreservation outcomes. We evaluated natural and synthetic materials, including sugars and polymers, AFPs and mimics, ice nucleators, and hydrogels. In addition, biochemical regulation, which enhances the tolerance of biosamples to cryopreservation-induced stresses, was also mentioned. Nanotechnology, cell encapsulation, cryomesh, and isochoric freezing, such scalable approaches, are further discussed for cryopreservation. Finally, future research directions in this field for efficient cryopreservation are proposed. We emphasized the need for multidisciplinary progress to address these challenges. The combination of cryobiology mechanisms with technologies, such as synthetic biology, nanotechnology, microfluidics, and 3D bioprinting, is highlighted.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"187"},"PeriodicalIF":10.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11887326/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxygen-delivery nanoparticles enhanced immunotherapy efficacy monitored by granzyme B PET imaging in malignant tumors.","authors":"Xingyi Wang, Hanyi Fang, Wenzhu Hu, Yuan Feng, Zhangyongxue Zhou, Mengyan Hu, Dawei Jiang, Yongxue Zhang, Xiaoli Lan","doi":"10.1186/s12951-025-03257-6","DOIUrl":"10.1186/s12951-025-03257-6","url":null,"abstract":"<p><p>Limited treatment response and inadequate monitoring methods stand firmly before successful immunotherapy. Recruiting and activating immune cells in the hypoxic tumor microenvironment is the key to reversing immune suppression and improving immunotherapy efficacy. In this study, biomimetic oxygen-delivering nanoparticles (CmPF) are engineered for homologous targeting and hypoxia alleviation within the tumor environment. CmPF targets the tumor microenvironment and delivers oxygen to reduce hypoxia, thereby promoting immune cell activity at the tumor site. In addition, granzyme B-targeted positron emission tomography (PET) imaging is employed to monitor immune cell activity changes in response to immunotherapy efficacy in vivo. The combination of CmPF with carboplatin and PD-1 inhibitors significantly suppresses tumor growth by 2.4-fold, exhibiting the potential of CmPF to enhance the efficacy of immunotherapy. Immunohistochemistry further confirms increased expression of key immune markers, highlighting the reprogramming of the tumor microenvironment. This study demonstrates that hypoxia alleviation enhances tumor immunotherapy efficacy and introduces a non-invasive PET imaging method for dynamic, real-time assessment of therapeutic response.</p>","PeriodicalId":16383,"journal":{"name":"Journal of Nanobiotechnology","volume":"23 1","pages":"186"},"PeriodicalIF":10.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11887188/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}