CN117919413A - 一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用 - Google Patents
一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用 Download PDFInfo
- Publication number
- CN117919413A CN117919413A CN202410320137.9A CN202410320137A CN117919413A CN 117919413 A CN117919413 A CN 117919413A CN 202410320137 A CN202410320137 A CN 202410320137A CN 117919413 A CN117919413 A CN 117919413A
- Authority
- CN
- China
- Prior art keywords
- nano
- solution
- fes
- aiph
- preparing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- -1 hydroxyl free radical Chemical class 0.000 title description 13
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002135 nanosheet Substances 0.000 claims abstract description 21
- 210000004881 tumor cell Anatomy 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 8
- IMBKASBLAKCLEM-UHFFFAOYSA-L ferrous ammonium sulfate (anhydrous) Chemical compound [NH4+].[NH4+].[Fe+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IMBKASBLAKCLEM-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000001509 sodium citrate Substances 0.000 claims abstract description 8
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims abstract description 8
- 229940038773 trisodium citrate Drugs 0.000 claims abstract description 8
- 230000006907 apoptotic process Effects 0.000 claims abstract description 7
- 238000011068 loading method Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 48
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 229920002873 Polyethylenimine Polymers 0.000 claims description 9
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 claims description 7
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 5
- 238000004729 solvothermal method Methods 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 7
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 12
- 206010028980 Neoplasm Diseases 0.000 abstract description 10
- 239000002086 nanomaterial Substances 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 5
- 230000002195 synergetic effect Effects 0.000 abstract description 5
- 230000001404 mediated effect Effects 0.000 abstract description 4
- 238000007669 thermal treatment Methods 0.000 abstract description 4
- 206010021143 Hypoxia Diseases 0.000 abstract description 3
- 230000034994 death Effects 0.000 abstract description 3
- 230000001146 hypoxic effect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 40
- 210000004027 cell Anatomy 0.000 description 23
- 150000003254 radicals Chemical class 0.000 description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 238000011534 incubation Methods 0.000 description 9
- 238000007626 photothermal therapy Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000003642 reactive oxygen metabolite Substances 0.000 description 5
- 231100000002 MTT assay Toxicity 0.000 description 4
- 238000000134 MTT assay Methods 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 4
- BQRGNLJZBFXNCZ-UHFFFAOYSA-N calcein am Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC(CN(CC(=O)OCOC(C)=O)CC(=O)OCOC(C)=O)=C(OC(C)=O)C=C1OC1=C2C=C(CN(CC(=O)OCOC(C)=O)CC(=O)OCOC(=O)C)C(OC(C)=O)=C1 BQRGNLJZBFXNCZ-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003698 anagen phase Effects 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 231100000433 cytotoxic Toxicity 0.000 description 3
- 230000001472 cytotoxic effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 239000007850 fluorescent dye Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000002147 killing effect Effects 0.000 description 3
- 238000003760 magnetic stirring Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 102000003992 Peroxidases Human genes 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 230000001093 anti-cancer Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003833 cell viability Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000386 microscopy Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 108040007629 peroxidase activity proteins Proteins 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000000259 anti-tumor effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 238000002784 cytotoxicity assay Methods 0.000 description 1
- 231100000263 cytotoxicity test Toxicity 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002073 fluorescence micrograph Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002064 nanoplatelet Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012221 photothermal agent Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- XJMOSONTPMZWPB-UHFFFAOYSA-M propidium iodide Chemical compound [I-].[I-].C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CCC[N+](C)(CC)CC)=C1C1=CC=CC=C1 XJMOSONTPMZWPB-UHFFFAOYSA-M 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000000733 zeta-potential measurement Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K41/00—Medicinal preparations obtained by treating materials with wave energy or particle radiation ; Therapies using these preparations
- A61K41/0052—Thermotherapy; Hyperthermia; Magnetic induction; Induction heating therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/4164—1,3-Diazoles
- A61K31/4178—1,3-Diazoles not condensed 1,3-diazoles and containing further heterocyclic rings, e.g. pilocarpine, nitrofurantoin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/24—Heavy metals; Compounds thereof
- A61K33/26—Iron; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/52—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an inorganic compound, e.g. an inorganic ion that is complexed with the active ingredient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/59—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
- A61K47/60—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/12—Sulfides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明公开了一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用,涉及纳米材料的制备和协同肿瘤治疗技术领域。制备方法包括如下步骤:S1、以硫酸亚铁铵、柠檬酸三钠等为原料制备硫化铁纳米片,S2、将AIPH负载于硫化铁纳米片上制备纳米平台。本发明采用上述一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用,硫化铁纳米片具有良好的生物可降解性和优异的光热转化能力,其介导的光热治疗促进AIPH分解为烷基自由基,协同光热治疗促进缺氧肿瘤细胞的凋亡;纳米平台进入肿瘤细胞中分解产生Fe2+同肿瘤细胞中的H2O2发生芬顿反应,产生大量的羟基自由基,进一步促进肿瘤细胞的死亡。
Description
技术领域
本发明涉及纳米材料的制备和协同肿瘤治疗技术领域,尤其是涉及一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用。
背景技术
光热治疗(PTT)是一种将光能转化为热能,利用光热试剂在近红外(NIR)照射下在高温下消融肿瘤的治疗策略。PTT作为一种非侵入性的局部治疗,可以实现对肿瘤组织的可控照射。已经证明,与单独的PTT相比,光热治疗与其他治疗组合显示出增强的抗癌功效。
近年来,热力学疗法(TDT)作为一种新兴的动态疗法引起了相当大的关注。通常,偶氮二异丁咪唑啉盐酸盐(AIPH)作为热不稳定的和水溶性的偶氮引发剂,在高温刺激下可迅速分解产生烷基自由基(·R)。由于高时空分辨率、低副作用和非侵入性的优点,光热疗法(PTT)已被认为是与TDT组合的理想方式。
化学动力学疗法(CDT)作为一种经典的基于活性氧(ROS)的抗癌方式,可以通过芬顿/类芬顿反应将内源性H2O2催化成高度细胞毒性的·OH,而不依赖于局部氧含量或外部能量。
PTT联合自由基介导的细胞凋亡是一种安全有效的肿瘤治疗方式,因此,开发具有协同治疗能力的纳米材料在肿瘤治疗方面有巨大的潜力。
发明内容
本发明的目的是提供一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用,基于PTT联合自由基介导的细胞凋亡的肿瘤治疗方式,开发具有协同治疗能力的纳米材料。
为实现上述目的,本发明提供了一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用,包括如下步骤:
S1、以硫酸亚铁铵、柠檬酸三钠等为原料制备硫化铁纳米片FeS;
S2、将AIPH负载于步骤S1制得的硫化铁纳米片FeS上制备纳米平台。
优选地,步骤S1中,制备硫化铁纳米片的具体步骤为:
S1-1、将硫酸亚铁铵、柠檬酸三钠溶于乙二醇溶液中,得到溶液A;配置100 mg/mL聚乙烯亚胺的乙二醇溶液,将聚乙烯亚胺的乙二醇溶液加至溶液A中室温下搅拌反应120min,得到溶液B;
S1-2、配置0.05 M硫代乙酰胺的乙二醇溶液,将硫代乙酰胺的乙二醇溶液加至溶液B中室温下搅拌反应1~5 min,得到溶液C;
S1-3、向溶液C中加入三乙醇胺,室温下搅拌反应1~5 min,产物进行溶剂热反应24小时,经离心、无水乙醇洗涤后得到硫化铁纳米片FeS。
优选地,步骤S2中,将AIPH负载于步骤S1制得的硫化铁纳米片FeS上的具体步骤为:将mPEG-SH、FeS、AIPH依次加入无水乙醇中,冰浴搅拌反应5小时,经离心、无水乙醇洗涤后制得硫化铁负载AIPH的制剂FeS-PEG/AIPH。
优选地,步骤S1-1中,溶液A中,硫酸亚铁铵、柠檬酸三钠、乙二醇的添加量之比为0.6 mmol∶0.2 mmol∶15 mL;溶液A与聚乙烯亚胺的乙二醇溶液的体积比为3∶1。
优选地,步骤S1-2中,硫代乙酰胺的乙二醇溶液与溶液B的体积比为3∶4。
优选地,步骤S1-3中,三乙醇胺与溶液C的体积比为1∶14。
优选地,步骤S1-3中,溶剂热反应在特氟龙内衬的高压反应釜中进行,温度为200℃。
优选地,步骤S2-1中,mPEG-SH、FeS、AIPH、无水乙醇的质量体积比为2 mg∶1 mg∶2mg∶2 mL。
因此,本发明采用上述一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用,具有如下技术效果:
(1)本发明提供的硫化铁纳米片负载AIPH纳米制剂,其中硫化铁纳米片具有良好的生物可降解性和优异的光热转换能力,一方面可以用于高效的肿瘤光热治疗,另一方面可以促进AIPH分解为非氧依赖性的细胞毒性自由基,进一步促进缺氧肿瘤细胞的凋亡;
(2)硫化铁纳米片在肿瘤微环境中分解产生Fe2+,同肿瘤细胞中的H2O2发生芬顿反应,产生大量的羟基自由基,进一步促进肿瘤细胞的死亡。
附图说明
图1为实施例一制得的硫化铁纳米片FeS的透射电镜图片;
图2为实施例一制得的FeS、FeS-PEG、FeS-PEG/AIPH的Zeta电位分析图;
图3为实施例一制得的不同浓度的FeS的光热升温曲线;
图4为实施例一制得的FeS在不同功率条件下的光热升温曲线;
图5为实施例一制得的FeS在1.5 W/cm2下的光热升温曲线及光热转换效率;
图6为TMB检测实施例一制得的不同浓度的FeS与H2O2共孵育后的·OH产生情况;
图7为TMB检测实施例一制得的FeS-PEG、FeS-PEG/AIPH光热激发烷基自由基产生情况;
图8为荧光倒置显微镜检测LLC细胞与不同浓度的FeS-PEG共孵育后的细胞摄取情况;
图9为通过MTT实验检测不同浓度的FP对LLC细胞的细胞毒性测定结果图;
图10为通过MTT实验检测不同浓度的FP对HUVEC细胞的生物相容性测定结果图;
图11为DCFH-DA荧光探针检测不同处理后产生·OH的荧光图像;
图12为Calcein AM/PI荧光探针检测不同处理后LLC细胞活/死细胞染色的荧光图像。
具体实施方式
以下通过附图和实施例对本发明的技术方案作进一步说明。
除非另外定义,本发明使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。
实施例一
一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,包括如下步骤:
S1、硫化铁纳米片的制备
将0.6 mmol的硫酸亚铁铵和0.2 mmol的柠檬酸三钠溶解于15 mL乙二醇中,得到溶液A;将500 mg的聚乙烯亚胺(PEI)溶于5 mL乙二醇溶液中,将PEI的乙二醇溶液加入到混合溶液中,在常温、800 rpm的磁力搅拌下反应120 min,得到溶液B;
将58.3475 mg的硫代乙酰胺溶于15 mL乙二醇溶液,然后加入到溶液B中,在常温、800 rpm的磁力搅拌下反应5 min,得到溶液C;
向溶液C中加入0.5 mL的三乙醇胺,在常温、800 rpm的磁力搅拌下反应5 min。
搅拌结束后,将产物转移到特氟龙内衬的高压釜中,在200 ℃下保持24 h。
最后,以 14000 rpm,10 min离心收集,用无水乙醇洗3遍,最终产物分散在无水乙醇中,即得硫化铁纳米片(FeS)。
S2、取1 mg硫化铁纳米片FeS与2 mg巯基-聚乙二醇-甲氧基(mPEG-SH)溶于2 mL无水乙醇中,在冰浴条件下搅拌6 h。搅拌结束后,以14000 rpm、10 min离心收集沉淀,将沉淀用无水乙醇洗2遍,最终产物分散在无水乙醇中,即得硫化铁纳米片制剂(FeS-PEG,简写为FP)。
S3、硫化铁负载AIPH制剂的制备
取mPEG-SH 2mg,FeS 1mg,AIPH 2 mg加入2 mL无水乙醇中,冰浴搅拌5 h,随后以14000 rpm,10 min离心收集,用无水乙醇洗2遍,最终产物分散在无水乙醇中,即得硫化铁负载AIPH的制剂(FeS-PEG/AIPH,简写为FPA)。
试验测试
(一)如图1所示,取适量硫化铁纳米片超声处理后滴加至铜网上,烘干制备成透射电镜样品,并用透射电子显微镜观察,所制备的硫化铁纳米材料为二维薄片状结构,粒径约为120 nm。
(二)如图2所示,对FeS、FP和FPA的Zeta电位进行检测,由于FeS含有大量胺基,显示出约+17.9 mV的正电荷,对其进行PEG修饰后,电位略有下降,为+16.5 mV,负载AIPH后电位升高至+20.9 mV,表明AIPH的成功负载。
(三)如图3所示,分别配置0,20,40,80,160 μg/mL的FeS溶液,使用808 nm激光对其照射5 min,用热电偶记录溶液每秒的温度变化,绘制温度变化曲线,结果表明随着FeS溶液浓度的增加,温度变化也会随之升高。
(四)如图4所示,配置三份160 μg/mL的FeS溶液,分别使用1.0,1.5,2.0 W/cm2的808 nm激光对其照射5 min,用热电偶记录溶液每秒的温度变化,绘制温度变化曲线,结果显示功率越高,温度上升越明显。表明FeS有良好的光热能力。
(五)如图5所示,配置160 μg/mL的FeS溶液,使用1.5 W/cm2的808 nm激光对其照射直至升至最高温度,关闭808 nm激光器,等待溶液降至室温,用热电偶记录溶液每30秒的温度变化,计算FeS的光热转换效率,结果显示FeS光热转换效率为37.42%,表明FeS具有良好的光热性能,是一种优良的光热转换剂。
(六)如图6所示,使用3,3′,5,5′-四甲基联苯胺(TMB)检测FeS的过氧化物酶活性。将FeS、TMB、过氧化氢三者混合,分别配置FeS终浓度为0.25,0.5,1 μg/mL的溶液,TMB终浓度为1 mM,过氧化氢的终浓度为100 µM,0.5 h后,使用紫外分光光度计检测溶液在550-750nm之间的吸收光谱,并拍照记录溶液颜色变化。
结果显示,随着FeS浓度的升高,混合溶液的蓝色逐渐加深,550-750 nm之间的吸收峰逐渐增高,说明FeS能够将过氧化氢催化为·OH,具有随浓度增强的过氧化物酶活性。
(七)如图7所示,使用3,3′,5,5′-四甲基联苯胺(TMB)检测FeS-PEG、FeS-PEG/AIPH光热激发烷基自由基产生的能力。
实验分组为FP、FPA、FP+NIR、FPA+NIR组。FP+NIR、FPA+NIR组使用1.5 W/cm2、808nm激光器照射5 min,将FP,FPA,FP+NIR,FPA+NIR分别与TMB、过氧化氢混合,使Fe离子的终浓度为5 μg/mL,TMB终浓度为1 mM,过氧化氢的终浓度为100 µM。10 min后,使用紫外分光光度计检测溶液在550-750 nm之间的吸收光谱。
结果显示,FP+NIR组的吸收峰高于FP组,表明光热增强了Fe离子的释放,FPA+NIR组吸收峰高于FP+NIR组,表明了光热激发了AIPH分解为烷基自由基。
(八)如图8所示,荧光倒置显微镜检测不同浓度的FP被肿瘤细胞摄取的能力。将FP-Cy5.5分别以5、10 µg/mL的浓度与LLC细胞共孵育,在孵育4 h后使用荧光倒置显微镜观察MnS@PDA的摄取情况。
结果显示,随着浓度的增加,红色荧光强度逐渐增强,说明LLC对FP的摄取呈浓度依赖性。
(九)如图9所示,通过MTT实验检测不同浓度的FP对肿瘤细胞的杀伤效果。
取对数生长期的LLC细胞消化,以1×104/孔接种于96孔板中,在含有5% CO2的37℃恒温培养箱中培养24 h。实验分组为Control组、NIR组、FP组、FP+NIR组、FPA+NIR组,NIR组在孵育6 h时进行808 nm激光照射。随后吸去培养液,每孔加入MTT培养基100 μL孵育3h,随后弃去培养基,每孔加入150 µL DMSO,振荡10 min使紫色结晶物全部溶解,利用酶标仪读取各个浓度在490 nm处的吸光值,由吸光值经计算细胞存活率与纳米材料和NIR的关系。
结果显示,LLC细胞的存活率在纳米材料浓度为40 μg/mL,FP+NIR组约为50%左右,负载有AIPH的FPA组细胞存活率更低,说明FPA对LLC细胞具有很好的细胞毒性,光热增强了对LLC细胞的杀伤效果。
(十)如图10所示,通过MTT实验检测不同浓度的FP对正常细胞的毒性作用。
取对数生长期的HUVEC细胞消化,以1×104/孔接种于96孔板中,在含有5% CO2的37℃恒温培养箱中培养24 h,将FP以最终浓度为0、12.5、25、50、100 μg/mL分别与HUVEC细胞共孵育24 h。此后,吸去培养液,每孔加入MTT培养基100 μL孵育3 h,随后弃去培养基,每孔加入150 µL DMSO,振荡10 min使紫色结晶物全部溶解,利用酶标仪读取各个浓度在490 nm处的吸光值,由吸光值计算细胞存活率与纳米材料浓度的关系。
结果显示,HUVEC细胞的存活率在纳米材料浓度低于100 μg/mL时均大于80%,说明FP对正常细胞具有良好的生物相容性。
(十一)如图11所示,使用DCFH-DA荧光探针检测不同处理诱导ROS生成的能力。
取对数生长期的LLC细胞消化,以30×104/孔将LLC细胞接种在6孔板中,在含有5%CO2的37 ℃恒温培养箱中培养24 h。随后将细胞分为Control组、NIR组、FP组、FP+NIR组和FPA+NIR组,含NIR的分组在孵育6 h后进行808 nm激光照射。4 h后弃去培养液,加入1 mL的DCFH-DA检测工作液,避光在37 ℃下孵育20 min。随后,在荧光显微镜下观察绿色荧光的分布情况。
结果显示,与Control组相比,FP+NIR组绿色荧光增强,表明了FP能够诱导产生ROS;相比于FP+NIR组,FPA+NIR组绿色荧光进一步增强,进一步说明光热增强了AIPH产生ROS的能力。
(十二)如图12所示,分别用钙黄绿素乙酰氧基甲酯Calcein-AM和碘化丙啶PI两种荧光染料标记活细胞和死亡细胞,取对数生长期的LLC细胞消化,以30×104/孔将LLC细胞接种在6孔板中,在含有5% CO2的37 ℃恒温培养箱中培养24 h。随后将细胞分为Control组、NIR组、FP组、FP+NIR组和FPA+NIR组,含NIR的分组在孵育6 h后进行808 nm激光照射。4h后弃去培养液,加入1 mL的Calcein AM/PI检测工作液,避光在37 ℃下孵育30分钟。随后,在荧光显微镜下观察红色荧光(PI:Ex/Em=535/617 nm)和绿色荧光(Calcein AM:Ex/Em=494/517 nm)的分布情况。
结果显示,与Control组相比,FP组红色荧光增加,绿色荧光减弱,表明了FP对LLC细胞的毒性作用,相比于FP组,FP+NIR组红色荧光增强,绿色荧光越来越弱,进一步说明光热增强了FP对LLC细胞的杀伤效果,FPA+NIR组红色荧光进一步增强,表明光热激活了AIPH产生了自由基,进一步促进了肿瘤细胞凋亡。
因此,本发明采用上述一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用,硫化铁纳米片具有良好的生物可降解性和优异的光热转化能力,其介导的光热治疗促进AIPH分解为非氧依赖性细胞毒自由基(烷基自由基),协同光热治疗促进缺氧肿瘤细胞的凋亡;另外,当该纳米平台进入肿瘤细胞中时,分解产生Fe2+,同肿瘤细胞中的H2O2发生芬顿反应,产生大量的羟基自由基,进一步促进肿瘤细胞的死亡;该纳米平台具有多功能协同抗肿瘤的能力,具有优异的肿瘤治疗作用。
最后应说明的是:以上实施例仅用以说明本发明的技术方案而非对其进行限制,尽管参照较佳实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对本发明的技术方案进行修改或者等同替换,而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明技术方案的精神和范围。
Claims (9)
1.一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于,包括如下步骤:
S1、以硫酸亚铁铵、柠檬酸三钠等为原料制备硫化铁纳米片FeS;
S2、将AIPH负载于步骤S1制得的硫化铁纳米片FeS上制备纳米平台。
2.根据权利要求1所述的一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于,步骤S1中,制备硫化铁纳米片的具体步骤为:
S1-1、将硫酸亚铁铵、柠檬酸三钠溶于乙二醇溶液中,得到溶液A;配置100 mg/mL聚乙烯亚胺的乙二醇溶液,将聚乙烯亚胺的乙二醇溶液加至溶液A中室温下搅拌反应120 min,得到溶液B;
S1-2、配置0.05 M硫代乙酰胺的乙二醇溶液,将硫代乙酰胺的乙二醇溶液加至溶液B中室温下搅拌反应1~5 min,得到溶液C;
S1-3、向溶液C中加入三乙醇胺,室温下搅拌反应1~5 min,产物进行溶剂热反应24小时,经离心、无水乙醇洗涤后得到硫化铁纳米片FeS。
3.根据权利要求1所述的一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于,步骤S2中,将AIPH负载于步骤S1制得的硫化铁纳米片FeS上的具体步骤为:将mPEG-SH、FeS、AIPH依次加入无水乙醇中,冰浴搅拌反应5小时,经离心、无水乙醇洗涤后制得硫化铁负载AIPH的制剂FeS-PEG/AIPH。
4.根据权利要求2所述的一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于:步骤S1-1中,溶液A中,硫酸亚铁铵、柠檬酸三钠、乙二醇的添加量之比为0.6 mmol∶0.2 mmol∶15 mL;溶液A与聚乙烯亚胺的乙二醇溶液的体积比为3∶1。
5.根据权利要求2所述的一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于:步骤S1-2中,硫代乙酰胺的乙二醇溶液与溶液B的体积比为3∶4。
6.根据权利要求2所述的一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于:步骤S1-3中,三乙醇胺与溶液C的体积比为1∶14。
7.根据权利要求2所述的一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于:步骤S1-3中,溶剂热反应在特氟龙内衬的高压反应釜中进行,温度为200 ℃。
8.根据权利要求1所述的一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法,其特征在于:步骤S2-1中,mPEG-SH、FeS、AIPH、无水乙醇的质量体积比为2 mg∶1 mg∶2 mg∶2 mL。
9.一种如权利要求1~8任一项所述的可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法所制备的纳米平台FeS-PEG/AIPH,其特征在于:FeS-PEG/AIPH在促进肿瘤细胞凋亡中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202410320137.9A CN117919413B (zh) | 2024-03-20 | 2024-03-20 | 一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202410320137.9A CN117919413B (zh) | 2024-03-20 | 2024-03-20 | 一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN117919413A true CN117919413A (zh) | 2024-04-26 |
CN117919413B CN117919413B (zh) | 2024-06-14 |
Family
ID=90754134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202410320137.9A Active CN117919413B (zh) | 2024-03-20 | 2024-03-20 | 一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117919413B (zh) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116477668A (zh) * | 2023-06-20 | 2023-07-25 | 山东第一医科大学(山东省医学科学院) | 一种二维硫化铁纳米片及其制备方法和应用 |
-
2024
- 2024-03-20 CN CN202410320137.9A patent/CN117919413B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116477668A (zh) * | 2023-06-20 | 2023-07-25 | 山东第一医科大学(山东省医学科学院) | 一种二维硫化铁纳米片及其制备方法和应用 |
Non-Patent Citations (1)
Title |
---|
XIANGTIAN DENG ET AL: "Tumor microenvironment/NIR-responsive oxygen-irrelevant radical nanogenerator for hypoxia-independent photothermal-thermodynamic osteosarcoma nanotherapy", 《MATERIALS & DESIGN》, vol. 224, 21 October 2022 (2022-10-21), pages 1 - 2, XP087231954, DOI: 10.1016/j.matdes.2022.111282 * |
Also Published As
Publication number | Publication date |
---|---|
CN117919413B (zh) | 2024-06-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Zhang et al. | AH 2 O 2 self-sufficient nanoplatform with domino effects for thermal-responsive enhanced chemodynamic therapy | |
Marangon et al. | Synergic mechanisms of photothermal and photodynamic therapies mediated by photosensitizer/carbon nanotube complexes | |
CN105412927B (zh) | 一种具有高光热性能的锰掺杂空心结构普鲁士蓝纳米粒子的制备方法 | |
CN105535972A (zh) | 一种c3n4纳米复合材料、制备方法及其应用 | |
WO2022067885A1 (zh) | 掺杂型二氧化钛在制备声敏剂中的应用 | |
CN111569073A (zh) | 一种负载光敏剂的介孔普鲁士蓝-锰纳米粒及其制备方法 | |
CN113648414B (zh) | 一种金属离子配位的碳点/二氧化钛异质结及其制备方法和应用 | |
CN113633660B (zh) | 一种具有原位调节肿瘤微环境及抗肿瘤效应的双金属纳米酶复合材料的制备方法 | |
CN106890333A (zh) | 一种聚氨基酸/MoS2纳米团簇的制备方法及应用 | |
Han et al. | NADPH Oxidase‐Like Nanozyme for High‐Efficiency Tumor Therapy Through Increasing Glutathione Consumption and Blocking Glutathione Regeneration | |
Zheng et al. | Schottky heterojunction CeO 2@ MXene nanosheets with synergistic type I and type II PDT for anti-osteosarcoma | |
CN117919413B (zh) | 一种可同时触发羟基自由基和烷基自由基产生的纳米平台制备方法与应用 | |
CN117482231A (zh) | 一种应用于肿瘤免疫治疗的多孔铜锰双金属纳米材料及其制备方法 | |
Shi et al. | A small pore black TiO 2/-large pore Fe 3 O 4 cascade nanoreactor for chemodynamic/photothermal synergetic tumour therapy | |
CN115518154B (zh) | 一种FeCuNC纳米材料及其制备和应用 | |
Liu et al. | Nanoarchitectonics with Two‐Dimensional Black Phosphorus and MnO2 for Synergistic Photodynamic‐/Radiotherapy Against Cancer through Enhanced Reactive Oxygen Species Activity | |
CN116785446A (zh) | 一种CeO2/Fe3O4杂化多孔碳纳米颗粒及其制备 | |
CN114177289B (zh) | 用于光动力和光热联合治疗的复合纳米材料及其制备方法、应用 | |
CN115282291A (zh) | 辛伐他汀/锰键合中空介孔普鲁士蓝/葡萄糖氧化酶纳米制剂及制备方法和应用 | |
Wang et al. | Scintillator-based radiocatalytic superoxide radical production for long-term tumor DNA damage | |
CN110639016B (zh) | 一种二硫SiO2封装的Ni-Mn-B纳米花球状材料的制备方法及其用途 | |
CN113304280A (zh) | 一种稀土上转换复合纳米材料用于肿瘤治疗 | |
Sun et al. | Modulation of two-dimensional palladium nanozyme activity to enhance chemodynamic/photothermal combined therapy for melanoma | |
CN115025220B (zh) | 一种提高光敏剂生物相容性的改性方法 | |
CN116036270B (zh) | 诊疗一体化的复合磁性半导体纳米材料的制备方法及应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |