Pub Date : 2024-03-06DOI: 10.1016/j.nano.2024.102740
Yu Zhang MD , Baorui Chu MD , Qian Fan MD , Xian Song MD , Qian Xu MD , Yi Qu MD
Choroidal Neovascularization (CNV) is capable of inciting recurrent hemorrhage in the macular region, severely impairing patients' visual acuity. During the onset of CNV, infiltrating M2 macrophages play a crucial role in promoting angiogenesis.
To control this disease, our study utilizes the RNA interference (RNAi)-based gene therapy to reprogram M2 macrophages to the M1 phenotype in CNV lesions. We synthesize the mannose-modified siRNA-loaded liposome specifically targeting M2 macrophages to inhibit the inhibitory kappa B kinase β (IKKβ) gene involved in the polarization of macrophages, consequently modulating macrophage polarization state. In vitro and in vivo, the mannose-modified IKKβ siRNA-loaded liposome (siIKKβ-ML) has been proven to effectively target M2 macrophages to repolarize them to M1 phenotype, and inhibit the progression of CNV. Collectively, our findings elucidate that siIKKβ-ML holds the potential to control CNV by reprogramming the macrophage phenotype, indicating a promising therapeutic avenue for CNV management.
{"title":"M2-type macrophage-targeted delivery of IKKβ siRNA induces M2-to-M1 repolarization for CNV gene therapy","authors":"Yu Zhang MD , Baorui Chu MD , Qian Fan MD , Xian Song MD , Qian Xu MD , Yi Qu MD","doi":"10.1016/j.nano.2024.102740","DOIUrl":"10.1016/j.nano.2024.102740","url":null,"abstract":"<div><p>Choroidal Neovascularization (CNV) is capable of inciting recurrent hemorrhage in the macular region, severely impairing patients' visual acuity. During the onset of CNV, infiltrating M2 macrophages play a crucial role in promoting angiogenesis.</p><p>To control this disease, our study utilizes the RNA interference (RNAi)-based gene therapy to reprogram M2 macrophages to the M1 phenotype in CNV lesions. We synthesize the mannose-modified siRNA-loaded liposome specifically targeting M2 macrophages to inhibit the inhibitory kappa B kinase β (IKKβ) gene involved in the polarization of macrophages, consequently modulating macrophage polarization state. In vitro and in vivo, the mannose-modified IKKβ siRNA-loaded liposome (siIKKβ-ML) has been proven to effectively target M2 macrophages to repolarize them to M1 phenotype, and inhibit the progression of CNV. Collectively, our findings elucidate that siIKKβ-ML holds the potential to control CNV by reprogramming the macrophage phenotype, indicating a promising therapeutic avenue for CNV management.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140065583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tumor recurrence, which happens as a result of persisting tumor cells and minor lesions after treatments like surgery and chemotherapy, is a major problem in oncology. Herein, a strategy to combat this issue by utilize a theranostic nanovaccine composed of photonic HCuS. This nanovaccine aims to eradicate cancer cells and their traces while also preventing tumor recurrence via optimizing the photothermal immune impact. Successful membrane targeting allows for the introduction of new therapeutic agents into the tumor cells. Together with co-encapsulated Toll-Like Receptors (TLR7/8) agonist R848 for activating T cells and maturing DCs, the combined effects of HCuS and ICG function as photothermal agents that generate heat in the presence of NIR light. Photothermal-mediated immunotherapy with therapeutic modalities proved successful in killing tumor cells. By activating the immune system, this new photonic nanovaccine greatly increases immunogenic cell death (ICD), kills tumor cells, and prevents their recurrence.
{"title":"Engineered photonic near-infrared light activated photothermal theranostic nanovaccine induced targeted remodeling of tumor microenvironment","authors":"Karunanidhi Gowsalya MSc , Babu Rithisa MSc , Yuvaraj Haldorai PhD , Krishnamurthy Shanthi PhD , Raju Vivek PhD","doi":"10.1016/j.nano.2024.102738","DOIUrl":"10.1016/j.nano.2024.102738","url":null,"abstract":"<div><p>Tumor recurrence, which happens as a result of persisting tumor cells and minor lesions after treatments like surgery and chemotherapy, is a major problem in oncology. Herein, a strategy to combat this issue by utilize a theranostic nanovaccine composed of photonic HCuS. This nanovaccine aims to eradicate cancer cells and their traces while also preventing tumor recurrence via optimizing the photothermal immune impact. Successful membrane targeting allows for the introduction of new therapeutic agents into the tumor cells. Together with co-encapsulated Toll-Like Receptors (TLR7/8) agonist R848 for activating T cells and maturing DCs, the combined effects of HCuS and ICG function as photothermal agents that generate heat in the presence of NIR light. Photothermal-mediated immunotherapy with therapeutic modalities proved successful in killing tumor cells. By activating the immune system, this new photonic nanovaccine greatly increases immunogenic cell death (ICD), kills tumor cells, and prevents their recurrence.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139716266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-08DOI: 10.1016/j.nano.2024.102739
Jianying Tan PhD , Huanran Wang Master's degree in engineering , Sainan Liu Master's degree in engineering , Li Li PhD , Hengquan Liu PhD , Tao Liu PhD , Junying Chen PhD
Vascular stent implantation remains the major therapeutic method for cardiovascular diseases currently. We here introduced crucial biological functional biological function factors (SDF-1α, VEGF) and vital metal ions (Zn2+) into the stent surface to explore their synergistic effect in the microenvironment. The combination of the different factors is known to effectively regulate cellular inflammatory response and selectively regulate cell biological behavior. Meanwhile, in the implemented method, VEGF and Zn2+ were loaded into heparin and poly-l-lysine (Hep-PLL) nanoparticles, ensuring a controlled release of functional molecules with a multi-factor synergistic effect and excellent biological functions in vitro and in vivo. Notably, after 150 days of implantation of the modified stent in rabbits, a thin and smooth new intima was obtained. This study offers a new idea for constructing a modified surface microenvironment and promoting tissue repair.
{"title":"Multifunctional nanocoatings with synergistic controlled release of zinc ions and cytokines for precise modulation of vascular intimal reconstruction","authors":"Jianying Tan PhD , Huanran Wang Master's degree in engineering , Sainan Liu Master's degree in engineering , Li Li PhD , Hengquan Liu PhD , Tao Liu PhD , Junying Chen PhD","doi":"10.1016/j.nano.2024.102739","DOIUrl":"10.1016/j.nano.2024.102739","url":null,"abstract":"<div><p>Vascular stent implantation remains the major therapeutic method for cardiovascular diseases currently. We here introduced crucial biological functional biological function factors (SDF-1α, VEGF) and vital metal ions (Zn<sup>2+</sup>) into the stent surface to explore their synergistic effect in the microenvironment. The combination of the different factors is known to effectively regulate cellular inflammatory response and selectively regulate cell biological behavior. Meanwhile, in the implemented method, VEGF and Zn<sup>2+</sup> were loaded into heparin and poly-<span>l</span>-lysine (Hep-PLL) nanoparticles, ensuring a controlled release of functional molecules with a multi-factor synergistic effect and excellent biological functions <em>in vitro</em> and <em>in vivo</em>. Notably, after 150 days of implantation of the modified stent in rabbits, a thin and smooth new intima was obtained. This study offers a new idea for constructing a modified surface microenvironment and promoting tissue repair.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139716268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-08DOI: 10.1016/j.nano.2024.102737
Bartłomiej Tołpa MSc , Wiesław Paja Dr , Elżbieta Trojnar MSc , Kornelia Łach MSc , Agnieszka Gala-Błądzińska Dr , Aneta Kowal MSc , Ewelina Gumbarewicz Dr , Paulina Frączek MSc , Józef Cebulski Dr , Joanna Depciuch Dr
Brain tumors are one of the most dangerous, because the position of these are in the organ that governs all life processes. Moreover, a lot of brain tumor types were observed, but only one main diagnostic method was used – histopathology, for which preparation of sample was long. Consequently, a new, quicker diagnostic method is needed. In this paper, FT-Raman spectra of brain tissues were analyzed by Principal Component Analysis (PCA), Hierarchical Cluster Analysis (HCA), four different machine learning (ML) algorithms to show possibility of differentiating between glioblastoma G4 and meningiomas, as well as two different types of meningiomas (atypical and angiomatous). Obtained results showed that in meningiomas additional peak around 1503 cm−1 and higher level of amides was noticed in comparison with glioblastoma G4. In the case of meningiomas differentiation, in angiomatous meningiomas tissues lower level of lipids and polysaccharides were visible than in atypical meningiomas. Moreover, PCA analyses showed higher distinction between glioblastoma G4 and meningiomas in the FT-Raman range between 800 cm−1 and 1800 cm−1 and between two types of meningiomas in the range between 2700 cm−1 and 3000 cm−1. Decision trees showed, that the most important peaks to differentiate glioblastoma and meningiomas were at 1151 cm−1 and 2836 cm−1 while for angiomatous and atypical meningiomas – 1514 cm−1 and 2875 cm−1. Furthermore, the accuracy of obtained results for glioblastoma G4 and meningiomas was 88 %, while for meningiomas – 92 %. Consequently, obtained data showed possibility of using FT-Raman spectroscopy in diagnosis of different types of brain tumors.
{"title":"FT-Raman spectra in combination with machine learning and multivariate analyses as a diagnostic tool in brain tumors","authors":"Bartłomiej Tołpa MSc , Wiesław Paja Dr , Elżbieta Trojnar MSc , Kornelia Łach MSc , Agnieszka Gala-Błądzińska Dr , Aneta Kowal MSc , Ewelina Gumbarewicz Dr , Paulina Frączek MSc , Józef Cebulski Dr , Joanna Depciuch Dr","doi":"10.1016/j.nano.2024.102737","DOIUrl":"10.1016/j.nano.2024.102737","url":null,"abstract":"<div><p>Brain tumors are one of the most dangerous, because the position of these are in the organ that governs all life processes. Moreover, a lot of brain tumor types were observed, but only one main diagnostic method was used – histopathology, for which preparation of sample was long. Consequently, a new, quicker diagnostic method is needed. In this paper, FT-Raman spectra of brain tissues were analyzed by Principal Component Analysis (PCA), Hierarchical Cluster Analysis (HCA), four different machine learning (ML) algorithms to show possibility of differentiating between glioblastoma G4 and meningiomas, as well as two different types of meningiomas (atypical and angiomatous). Obtained results showed that in meningiomas additional peak around 1503 cm<sup>−1</sup> and higher level of amides was noticed in comparison with glioblastoma G4. In the case of meningiomas differentiation, in angiomatous meningiomas tissues lower level of lipids and polysaccharides were visible than in atypical meningiomas. Moreover, PCA analyses showed higher distinction between glioblastoma G4 and meningiomas in the FT-Raman range between 800 cm<sup>−1</sup> and 1800 cm<sup>−1</sup> and between two types of meningiomas in the range between 2700 cm<sup>−1</sup> and 3000 cm<sup>−1</sup>. Decision trees showed, that the most important peaks to differentiate glioblastoma and meningiomas were at 1151 cm<sup>−1</sup> and 2836 cm<sup>−1</sup> while for angiomatous and atypical meningiomas – 1514 cm<sup>−1</sup> and 2875 cm<sup>−1</sup>. Furthermore, the accuracy of obtained results for glioblastoma G4 and meningiomas was 88 %, while for meningiomas – 92 %. Consequently, obtained data showed possibility of using FT-Raman spectroscopy in diagnosis of different types of brain tumors.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139716267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-29DOI: 10.1016/j.nano.2024.102735
Ningrong Chen PhD , Xin Wei PhD , Gang Zhao PhD , Zhenshan Jia PhD , Xin Fu PhD , Haochen Jiang BS , Xiaoke Xu BSc , Zhifeng Zhao PhD , Purva Singh PhD , Samantha Lessard BA , Miguel Otero PhD , Mary B. Goldring PhD , Steven R. Goldring MD , Dong Wang PhD
In this study, we aimed to assess the analgesic efficacy of a thermoresponsive polymeric dexamethasone (Dex) prodrug (ProGel-Dex) in a mouse model of osteoarthritis (OA). At 12 weeks post model establishment, the OA mice received a single intra-articular (IA) injection of ProGel-Dex, dose-equivalent Dex, or Saline. Comparing to Saline and Dex controls, ProGel-Dex provided complete and sustained pain relief for >15 weeks according to incapacitance tests. In vivo optical imaging confirmed the continuous presence of ProGel-Dex in joints for 15 weeks post-injection. According to micro-CT analysis, ProGel-Dex treated mice had significantly lower subchondral bone thickness and medial meniscus bone volume than Dex and Saline controls. Except for a transient delay of body weight increase and slightly lower endpoint liver and spleen weights, no other adverse effect was observed after ProGel-Dex treatment. These findings support ProGel-Dex's potential as a potent and safe analgesic candidate for management of OA pain.
{"title":"Single dose thermoresponsive dexamethasone prodrug completely mitigates joint pain for 15 weeks in a murine model of osteoarthritis","authors":"Ningrong Chen PhD , Xin Wei PhD , Gang Zhao PhD , Zhenshan Jia PhD , Xin Fu PhD , Haochen Jiang BS , Xiaoke Xu BSc , Zhifeng Zhao PhD , Purva Singh PhD , Samantha Lessard BA , Miguel Otero PhD , Mary B. Goldring PhD , Steven R. Goldring MD , Dong Wang PhD","doi":"10.1016/j.nano.2024.102735","DOIUrl":"10.1016/j.nano.2024.102735","url":null,"abstract":"<div><p><span><span>In this study, we aimed to assess the analgesic efficacy of a thermoresponsive polymeric </span>dexamethasone (Dex) </span>prodrug<span><span> (ProGel-Dex) in a mouse model of osteoarthritis<span> (OA). At 12 weeks post model establishment, the OA mice received a single intra-articular (IA) injection of ProGel-Dex, dose-equivalent Dex, or Saline. Comparing to Saline and Dex controls, ProGel-Dex provided complete and sustained pain relief for >15 weeks according to incapacitance tests. In vivo optical imaging<span><span><span> confirmed the continuous presence of ProGel-Dex in joints for 15 weeks post-injection. According to micro-CT analysis, ProGel-Dex treated mice had significantly lower </span>subchondral bone thickness and medial meniscus bone volume than Dex and Saline controls. Except for a transient delay of body weight increase and slightly lower endpoint liver and </span>spleen weights, no other adverse effect was observed after ProGel-Dex </span></span></span>treatment<span>. These findings support ProGel-Dex's potential as a potent and safe analgesic candidate for management of OA pain.</span></span></p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139584432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-29DOI: 10.1016/j.nano.2024.102734
Filipa A.L.S. Silva MSc , Soraia Pinto MSc , Susana G. Santos PhD , Fernão D. Magalhães PhD , Bruno Sarmento PhD , Artur M. Pinto PhD
Basal cell carcinoma (BCC) is the most common form of human cancer, and treatment usually involves surgery, with alternative strategies being needed. We propose the use of carbopol hydrogels (HG) for topical administration of nanographene oxide (GOn) and partially-reduced nanographene oxide (p-rGOn) for photothermal therapy (PTT) of BCC. GOn and p-rGOn incorporated into the HG present lateral sizes ∼200 nm, being stable for 8 months. After 20 min irradiation with an infrared (IR) photothermal therapy lamp (15.70 mW cm−2), GOn-HG increased temperature to 44.7 °C, while p-rGOn-HG reached 47.0 °C. Human skin fibroblasts (HFF-1) cultured with both hydrogels (250 μg mL−1) maintained their morphology and viability. After 20 min IR irradiation, p-rGOn HG (250 μg mL−1) completely eradicated skin cancer cells (A-431). Ex vivo human skin permeability tests showed that the materials can successfully achieve therapeutic concentrations (250 μg mL−1) inside the skin, in 2.0 h for GO HG or 0.5 h for p-rGOn HG.
{"title":"New graphene-containing pharmaceutical formulations for infrared lamps-based phototherapy of skin cancer: In vitro validation and ex-vivo human skin permeation","authors":"Filipa A.L.S. Silva MSc , Soraia Pinto MSc , Susana G. Santos PhD , Fernão D. Magalhães PhD , Bruno Sarmento PhD , Artur M. Pinto PhD","doi":"10.1016/j.nano.2024.102734","DOIUrl":"10.1016/j.nano.2024.102734","url":null,"abstract":"<div><p>Basal cell carcinoma (BCC) is the most common form of human cancer, and treatment usually involves surgery, with alternative strategies being needed. We propose the use of carbopol hydrogels (HG) for topical administration of nanographene oxide (GOn) and partially-reduced nanographene oxide (p-rGOn) for photothermal therapy (PTT) of BCC. GOn and p-rGOn incorporated into the HG present lateral sizes ∼200 nm, being stable for 8 months. After 20 min irradiation with an infrared (IR) photothermal therapy lamp (15.70 mW cm<sup>−2</sup>), GOn-HG increased temperature to 44.7 °C, while p-rGOn-HG reached 47.0 °C. Human skin fibroblasts (HFF-1) cultured with both hydrogels (250 μg mL<sup>−1</sup>) maintained their morphology and viability. After 20 min IR irradiation, p-rGOn HG (250 μg mL<sup>−1</sup>) completely eradicated skin cancer cells (A-431). <em>Ex vivo</em> human skin permeability tests showed that the materials can successfully achieve therapeutic concentrations (250 μg mL<sup>−1</sup>) inside the skin, in 2.0 h for GO HG or 0.5 h for p-rGOn HG.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139584415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-08DOI: 10.1016/j.nano.2024.102732
Divya Kamath PhD , Tomoo Iwakuma MD PhD , Stefan H. Bossmann PhD
Among the tumor suppressor genes, TP53 is the most frequently mutated in human cancers, and most mutations are missense mutations causing production of mutant p53 (mutp53) proteins. TP53 mutations not only results in loss of function (LOH) as a transcription factor and a tumor suppressor, but also gain wild-type p53 (WTp53)-independent oncogenic functions that enhance cancer metastasis and progression (Yamamoto and Iwakuma, 2018; Zhang et al., 2022). TP53 has extensively been studied as a therapeutic target as well as for drug development and therapies, however with limited success. Achieving targeted therapies for restoration of WTp53 function and depletion or repair of mutant p53 (mutp53) will have far reaching implication in cancer treatment and therapies. This review briefly discusses the role of p53 mutation in cancer and the therapeutic potential of restoring WTp53 through the advances in mRNA nanomedicine.
在肿瘤抑制基因中,TP53是人类癌症中最常发生突变的基因,大多数突变都是错义突变,导致产生突变p53(mutp53)蛋白。TP53突变不仅会导致作为转录因子和肿瘤抑制因子的功能缺失(LOH),还会获得野生型p53(WTp53)依赖的致癌功能,从而增强癌症的转移和进展(Yamamoto and Iwakuma, 2018; Zhang et al.)人们已将 TP53 作为治疗靶点以及药物开发和疗法进行了广泛研究,但成效有限。实现恢复 WTp53 功能和消耗或修复突变 p53(mutp53)的靶向疗法将对癌症治疗和疗法产生深远影响。本综述简要讨论了 p53 突变在癌症中的作用,以及通过 mRNA 纳米药物的进步恢复 WTp53 的治疗潜力。
{"title":"Therapeutic potential of combating cancer by restoring wild-type p53 through mRNA nanodelivery","authors":"Divya Kamath PhD , Tomoo Iwakuma MD PhD , Stefan H. Bossmann PhD","doi":"10.1016/j.nano.2024.102732","DOIUrl":"10.1016/j.nano.2024.102732","url":null,"abstract":"<div><p>Among the tumor suppressor genes, <em>TP53</em> is the most frequently mutated in human cancers, and most mutations are missense mutations causing production of mutant p53 (mutp53) proteins. <em>TP53</em> mutations not only results in loss of function (LOH) as a transcription factor and a tumor suppressor, but also gain wild-type p53 (WTp53)-independent oncogenic functions that enhance cancer metastasis and progression (Yamamoto and Iwakuma, 2018; Zhang et al., 2022). <em>TP53</em> has extensively been studied as a therapeutic target as well as for drug development and therapies, however with limited success. Achieving targeted therapies for restoration of WTp53 function and depletion or repair of mutant p53 (mutp53) will have far reaching implication in cancer treatment and therapies. This review briefly discusses the role of p53 mutation in cancer and the therapeutic potential of restoring WTp53 through the advances in mRNA nanomedicine.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1549963424000017/pdfft?md5=3bfb6c54e10c88db00aebb3109581026&pid=1-s2.0-S1549963424000017-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139397746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-08DOI: 10.1016/j.nano.2024.102733
Christopher N. Subasic , Fiona Simpson , Rodney F. Minchin , Lisa M. Kaminskas
Anti-cancer monoclonal antibodies often fail to provide therapeutic benefit in receptor-positive patients due to rapid endocytosis of antibody-bound cell surface receptors. High dose co-administration of prochlorperazine (PCZ) inhibits endocytosis and sensitises tumours to mAbs by inhibiting dynamin II but can also introduce neurological side effects. We examined the potential to use PEGylated liposomal formulations of PCZ (LPCZ) to retain the anti-cancer effects of PCZ, but limit brain uptake. Uncharged liposomes showed complete drug encapsulation and pH-dependent drug release, but cationic liposomes showed limited drug encapsulation and lacked pH-dependent drug release. Uncharged LPCZ showed comparable inhibition of EGFR internalisation to free PCZ in KJD cells. After IV administration to rats, LPCZ reduced the plasma clearance and brain uptake of PCZ compared to IV PCZ. The results suggest that LPCZ may offer some benefit over PCZ as an adjunct therapy in cancer patients receiving mAb treatment.
{"title":"A PEGylated liposomal formulation of prochlorperazine that limits brain exposure but retains dynamin II activity: A potential adjuvant therapy for cancer patients receiving chemotherapeutic mAbs","authors":"Christopher N. Subasic , Fiona Simpson , Rodney F. Minchin , Lisa M. Kaminskas","doi":"10.1016/j.nano.2024.102733","DOIUrl":"10.1016/j.nano.2024.102733","url":null,"abstract":"<div><p>Anti-cancer monoclonal antibodies often fail to provide therapeutic benefit in receptor-positive patients due to rapid endocytosis of antibody-bound cell surface receptors. High dose co-administration of prochlorperazine (PCZ) inhibits endocytosis and sensitises tumours to mAbs by inhibiting dynamin II but can also introduce neurological side effects. We examined the potential to use PEGylated liposomal formulations of PCZ (LPCZ) to retain the anti-cancer effects of PCZ, but limit brain uptake. Uncharged liposomes showed complete drug encapsulation and pH-dependent drug release, but cationic liposomes showed limited drug encapsulation and lacked pH-dependent drug release. Uncharged LPCZ showed comparable inhibition of EGFR internalisation to free PCZ in KJD cells. After IV administration to rats, LPCZ reduced the plasma clearance and brain uptake of PCZ compared to IV PCZ. The results suggest that LPCZ may offer some benefit over PCZ as an adjunct therapy in cancer patients receiving mAb treatment.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1549963424000029/pdfft?md5=d9885184d3ca15297423f751a561d6e6&pid=1-s2.0-S1549963424000029-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139397933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-27DOI: 10.1016/j.nano.2023.102730
M. Kovář PhD , V. Šubr PhD , K. Běhalová MSc , M. Studenovský PhD , D. Starenko MSc , J. Kovářová PhD , P. Procházková PhD , T. Etrych PhD, DSc , L. Kostka PhD
We synthesized three novel STAT3 inhibitors (S3iD1-S3iD3) possessing oxoheptanoic residue enabling linkage to HPMA copolymer carrier via a pH-sensitive hydrazone bond. HPMA copolymer conjugates bearing doxorubicin (Dox) and our STAT3 inhibitors were synthesized to evaluate the anticancer effect of Dox and STAT3 inhibitor co-delivery into tumors. S3iD1–3 and their copolymer-bound counterparts (P-S3iD1-P-S3iD3) showed considerable in vitro cytostatic activities in five mouse and human cancer cell lines with IC50 ~0.6–7.9 μM and 0.7–10.9 μM, respectively. S3iD2 and S3iD3 were confirmed to inhibit the STAT3 signaling pathway. The combination of HPMA copolymer-bound Dox (P-Dox) and P-S3iD3 at the dosage showing negligible toxicity demonstrated significant antitumor activity in B16F10 melanoma-bearing mice and completely cured 2 out of 15 mice. P-Dox alone had a significantly lower therapeutic activity with no completely cured mice. Thus, polymer conjugates bearing STAT3 inhibitors may be used for the chemosensitization of chemorefractory tumors.
{"title":"Chemosensitization of tumors via simultaneous delivery of STAT3 inhibitor and doxorubicin through HPMA copolymer-based nanotherapeutics with pH-sensitive activation","authors":"M. Kovář PhD , V. Šubr PhD , K. Běhalová MSc , M. Studenovský PhD , D. Starenko MSc , J. Kovářová PhD , P. Procházková PhD , T. Etrych PhD, DSc , L. Kostka PhD","doi":"10.1016/j.nano.2023.102730","DOIUrl":"10.1016/j.nano.2023.102730","url":null,"abstract":"<div><p>We synthesized three novel STAT3 inhibitors (S3iD1-S3iD3) possessing oxoheptanoic residue enabling linkage to HPMA copolymer carrier via a pH-sensitive hydrazone bond. HPMA copolymer conjugates bearing doxorubicin (Dox) and our STAT3 inhibitors were synthesized to evaluate the anticancer effect of Dox and STAT3 inhibitor co-delivery into tumors. S3iD1–3 and their copolymer-bound counterparts (P-S3iD1-P-S3iD3) showed considerable in vitro cytostatic activities in five mouse and human cancer cell lines with IC<sub>50</sub> ~0.6–7.9 μM and 0.7–10.9 μM, respectively. S3iD2 and S3iD3 were confirmed to inhibit the STAT3 signaling pathway. The combination of HPMA copolymer-bound Dox (P-Dox) and P-S3iD3 at the dosage showing negligible toxicity demonstrated significant antitumor activity in B16F10 melanoma-bearing mice and completely cured 2 out of 15 mice. P-Dox alone had a significantly lower therapeutic activity with no completely cured mice. Thus, polymer conjugates bearing STAT3 inhibitors may be used for the chemosensitization of chemorefractory tumors.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1549963423000813/pdfft?md5=0b22e39da0d9dbd9f7c2df39ae999db8&pid=1-s2.0-S1549963423000813-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139069566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-27DOI: 10.1016/j.nano.2023.102731
Julia Werner MSc , Florian Umstätter PhD , Tobias Hertlein PhD , Barbro Beijer PhD , Christian Kleist PhD , Eric Mühlberg MSc , Stefan Zimmermann MD , Uwe Haberkorn MD , Knut Ohlsen PhD , Gert Fricker PhD , Walter Mier PhD , Philipp Uhl PhD
Antibiotic resistance still represents a global health concern which diminishes the pool of effective antibiotics. With the vancomycin derivative FU002, we recently reported a highly potent substance active against Gram-positive bacteria with the potential to overcome vancomycin resistance. However, the translation of its excellent antimicrobial activity into clinical efficiency could be hampered by its rapid elimination from the blood stream. To improve its pharmacokinetics, we encapsulated FU002 in PEGylated liposomes. For PEG-liposomal FU002, no relevant cytotoxicity on liver, kidney and red blood cells was observed. Studies in Wistar rats revealed a significantly prolonged blood circulation of the liposomal antibiotic. In microdilution assays it could be demonstrated that encapsulation does not diminish the antimicrobial activity against staphylococci and enterococci. Highlighting its great potency, liposomal FU002 exhibited a superior therapeutic efficacy when compared to the free form in a Galleria mellonella larvae infection model.
{"title":"Improved pharmacokinetics and enhanced efficacy of the vancomycin derivative FU002 using a liposomal nanocarrier","authors":"Julia Werner MSc , Florian Umstätter PhD , Tobias Hertlein PhD , Barbro Beijer PhD , Christian Kleist PhD , Eric Mühlberg MSc , Stefan Zimmermann MD , Uwe Haberkorn MD , Knut Ohlsen PhD , Gert Fricker PhD , Walter Mier PhD , Philipp Uhl PhD","doi":"10.1016/j.nano.2023.102731","DOIUrl":"10.1016/j.nano.2023.102731","url":null,"abstract":"<div><p>Antibiotic resistance still represents a global health concern which diminishes the pool of effective antibiotics. With the vancomycin derivative FU002, we recently reported a highly potent substance active against Gram-positive bacteria with the potential to overcome vancomycin resistance. However, the translation of its excellent antimicrobial activity into clinical efficiency could be hampered by its rapid elimination from the blood stream. To improve its pharmacokinetics, we encapsulated FU002 in PEGylated liposomes. For PEG-liposomal FU002, no relevant cytotoxicity on liver, kidney and red blood cells was observed. Studies in Wistar rats revealed a significantly prolonged blood circulation of the liposomal antibiotic. In microdilution assays it could be demonstrated that encapsulation does not diminish the antimicrobial activity against staphylococci and enterococci. Highlighting its great potency, liposomal FU002 exhibited a superior therapeutic efficacy when compared to the free form in a <em>Galleria mellonella</em> larvae infection model.</p></div>","PeriodicalId":19050,"journal":{"name":"Nanomedicine : nanotechnology, biology, and medicine","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1549963423000825/pdfft?md5=6d7933ff6822d44856d4b5da0e044201&pid=1-s2.0-S1549963423000825-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139070405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}