CN1248688C - Targeting hydroxycamptothecin bean phospholipid nano freeze-dried powder injection preparation and preparation method thereof - Google Patents
Targeting hydroxycamptothecin bean phospholipid nano freeze-dried powder injection preparation and preparation method thereof Download PDFInfo
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- CN1248688C CN1248688C CN200410013143.2A CN200410013143A CN1248688C CN 1248688 C CN1248688 C CN 1248688C CN 200410013143 A CN200410013143 A CN 200410013143A CN 1248688 C CN1248688 C CN 1248688C
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- hydroxy camptothecin
- fabaceous lecithin
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- HAWSQZCWOQZXHI-FQEVSTJZSA-N 10-Hydroxycamptothecin Chemical compound C1=C(O)C=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)[C@]5(O)CC)C4=NC2=C1 HAWSQZCWOQZXHI-FQEVSTJZSA-N 0.000 title claims abstract description 40
- 239000000843 powder Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 230000008685 targeting Effects 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 title abstract description 16
- 239000007924 injection Substances 0.000 title abstract description 16
- 244000046052 Phaseolus vulgaris Species 0.000 title abstract 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 title abstract 2
- 150000003904 phospholipids Chemical class 0.000 title abstract 2
- 239000007864 aqueous solution Substances 0.000 claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 16
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims abstract description 15
- 229920000053 polysorbate 80 Polymers 0.000 claims abstract description 15
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229960000502 poloxamer Drugs 0.000 claims abstract description 11
- 229920001983 poloxamer Polymers 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 11
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims abstract description 10
- 235000010355 mannitol Nutrition 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 7
- 229930195725 Mannitol Natural products 0.000 claims abstract description 6
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- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims description 26
- 235000010445 lecithin Nutrition 0.000 claims description 26
- 229940067606 lecithin Drugs 0.000 claims description 26
- 239000000787 lecithin Substances 0.000 claims description 26
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000002671 adjuvant Substances 0.000 claims description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 238000009834 vaporization Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012512 characterization method Methods 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 28
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- 210000004185 liver Anatomy 0.000 abstract description 9
- 210000000056 organ Anatomy 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 2
- JLPULHDHAOZNQI-ZTIMHPMXSA-N 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC JLPULHDHAOZNQI-ZTIMHPMXSA-N 0.000 abstract 2
- 238000004108 freeze drying Methods 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
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- 239000008347 soybean phospholipid Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 description 16
- 210000001519 tissue Anatomy 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
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- 238000004364 calculation method Methods 0.000 description 5
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- JGSARLDLIJGVTE-UHFFFAOYSA-N 3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid Chemical compound O=C1N2C(C(O)=O)C(C)(C)SC2C1NC(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-UHFFFAOYSA-N 0.000 description 4
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- 241000699670 Mus sp. Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
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- WCGUUGGRBIKTOS-GPOJBZKASA-N (3beta)-3-hydroxyurs-12-en-28-oic acid Chemical compound C1C[C@H](O)C(C)(C)[C@@H]2CC[C@@]3(C)[C@]4(C)CC[C@@]5(C(O)=O)CC[C@@H](C)[C@H](C)[C@H]5C4=CC[C@@H]3[C@]21C WCGUUGGRBIKTOS-GPOJBZKASA-N 0.000 description 1
- PAEZRCINULFAGO-OAQYLSRUSA-N (R)-homocamptothecin Chemical compound CC[C@@]1(O)CC(=O)OCC(C2=O)=C1C=C1N2CC2=CC3=CC=CC=C3N=C21 PAEZRCINULFAGO-OAQYLSRUSA-N 0.000 description 1
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 208000005718 Stomach Neoplasms Diseases 0.000 description 1
- 208000007097 Urinary Bladder Neoplasms Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
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- VSJKWCGYPAHWDS-FQEVSTJZSA-N camptothecin Chemical compound C1=CC=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)[C@]5(O)CC)C4=NC2=C1 VSJKWCGYPAHWDS-FQEVSTJZSA-N 0.000 description 1
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- 229910052698 phosphorus Inorganic materials 0.000 description 1
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- 235000009566 rice Nutrition 0.000 description 1
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- 229940096998 ursolic acid Drugs 0.000 description 1
- PLSAJKYPRJGMHO-UHFFFAOYSA-N ursolic acid Natural products CC1CCC2(CCC3(C)C(C=CC4C5(C)CCC(O)C(C)(C)C5CCC34C)C2C1C)C(=O)O PLSAJKYPRJGMHO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a targeting hydroxycamptothecin bean phospholipid nano freeze-dried powder injection preparation. The composite material is prepared from the following main raw materials in percentage by weight: 1-5 parts of active raw material hydroxycamptothecin, 1-10 parts of carrier soybean lecithin, 2-20 parts of freeze-drying auxiliary materials and surfactant poloxamer or tween-80 or span-651. Putting hydroxycamptothecin and soybean phospholipid into a container, adding an organic solvent, and heating in a water bath for dissolving; then evaporating under reduced pressure to remove the solvent; adding a surfactant under the condition of introducing nitrogen, and stirring at a high speed; and (4) carrying out ultrasonic treatment on the stirred solution, adding a mannitol aqueous solution, and carrying out freeze-drying on the finished product. The nano powder injection has excellent targeting property, and has medicine concentration in the tissues of main organs obviously higher than that of common powder injection, wherein the medicine concentration in the liver is 37.66 times (15 minutes), 23.04 times (60 minutes) and 14.65 times (120 minutes) of that of common powder injection. The nano powder injection has obvious accumulated target tissues or organs. The preparation method is simple and easy to realize, and the encapsulation rate of the medicine can reach 98.73 percent.
Description
Technical field
The invention belongs to hydroxy-camptothecin pharmaceutical preparation, be specifically related to have the hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation and the preparation method of targeting.
Background technology
10-hydroxycamptothecine has certain curative effect in the applying clinical eighties in last century to ascitic type liver cancer, tumor of head and neck, gastric cancer and bladder cancer.But, need sodium hydroxide that its lactonic ring is opened to dissolve behind the salify to make ordinary preparation because it be that water is insoluble, the fat insoluble drug.Yet the active anticancer of HCPT open loop structure is low, and the interior retention time of human body is short again behind the salify, and is difficult to enter tissue and cell by biomembrane, thereby limits its curative effect.
Hydroxy-camptothecin alkali belongs to cytotoxic drug, and it has tangible influence to normal cell in kill cancer cell, and its clinical side effects mainly shows as and suppresses hemopoietic system etc.
Be used for the treatment of hepatocarcinoma, lung cancer drugs at present clinically, most toxic and side effects is stronger.Its main cause is because the distribution in vivo of these medicines does not have selectivity, and is influential too to Normocellular metabolism except the cell to canceration has the killing action, consequently produces unnecessary side effect.Make patient's treatment be difficult to proceed, cause the cancer patient life quality to descend, mortality rate increases.
Problems such as at present the domestic existing method for preparing hydroxycamptothecin nano exists and makes liver ferrumization, and contaminated environment, envelop rate are low.
Summary of the invention
The object of the present invention is to provide a kind of targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation and preparation method thereof.
Targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation of the present invention is by the primary raw material of weight ratio: activated feedstock hydroxy camptothecin 1～5, carrier fabaceous lecithin 1～10, surfactant poloxamer or tween 80 or Arlacel-65 1～20, lyophilizing adjuvant 2～20.
Preparation method of the present invention is:
(1) with hydroxy camptothecin and fabaceous lecithin with solvent acetone or chloroform or dissolve with ethanol;
(2) with the solution decompression evaporation of step (1), boil off solvent;
(3) under logical condition of nitrogen gas, the aqueous solution of surfactant poloxamer or tween 80 or Arlacel-65 is joined in the mixture of step (2) high-speed stirred;
(4) solution of ultrasonic Treatment step (3) is 1～10 minute;
(5) aqueous solution with the lyophilizing adjuvant joins in the solution of step (4);
(6) solution with step (5) carries out lyophilizing.
The solution temperature of described step (1) is 50～60 ℃;
The temperature that described step (2) boils off solvent is 40～60 ℃.
The whipping temp of described step (3) is 30～50 ℃.
It is with primary raw material: activated feedstock hydroxy camptothecin 1～5, carrier fabaceous lecithin 1～10, surfactant poloxamer or tween 80 or Arlacel-65 1～20, lyophilizing adjuvant 2～20 form and the hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation targeting of 50～800nm of preparation be used for the treatment of hepatocarcinoma.
This nano powder injection has fabulous targeting, experiment show this nano powder injection at remedy,tissue's substrate concentration of each main organs apparently higher than common injectable powder, wherein liver drug concentration is 37.66 times (15 minutes), 23.04 times (60 minutes) and 14.65 times (120 minutes) of common injectable powder, also is injectable powder ten times or more common with the time at kidney and spleen drug level.But this nano powder injection is given behind the medicine in liver organization the long period high concentration of guaranteeing the quality, and demonstrates target tissue or the organ significantly accumulated.This preparation method is simple, realizes that easily the envelop rate of medicine can be up to 98.73%.
Description of drawings
Accompanying drawing preparation method flow chart of the present invention
The specific embodiment
Embodiment 1
Primary raw material: activated feedstock hydroxy camptothecin 100mg; Fabaceous lecithin 100mg; Surfactant poloxamer 100mg or tween 80 200mg or Arlacel-65 200mg; Mannitol 200mg
Hydroxy camptothecin and fabaceous lecithin are placed the 500ml container, add acetone 100ml or chloroform 100ml or dehydrated alcohol 100ml, heating for dissolving in 50～60 ℃ water-bath; Using reduction vaporization then, is under 40～60 ℃ of conditions in temperature, boils off solvent; Add aqueous solution or tween 80 aqueous solution or the Arlacel-65 aqueous solution of the Luo Shamu of surfactant 1% under logical condition of nitrogen gas, high-speed stirred is 20 minutes under 30～50 ℃ of temperature conditions, stops logical nitrogen; Solution after stirring was carried out ultrasonic Treatment 1～10 minute, add Osmitrol, be sub-packed in the cillin bottle every bottle of 2ml, freeze dried finished product to 500ml.
Embodiment 2
Primary raw material: activated feedstock hydroxy camptothecin 250mg; Fabaceous lecithin 500mg; Surfactant poloxamer 500mg or tween 80 600mg or Arlacel-65 600mg; Mannitol 1000mg
Hydroxy camptothecin and fabaceous lecithin are placed the 500ml container, add acetone 150ml or chloroform 150ml or dehydrated alcohol 150ml, heating for dissolving in 50～60 ℃ water-bath; Using reduction vaporization then, is under 40～60 ℃ of conditions in temperature, boils off solvent; Add aqueous solution or tween 80 aqueous solution or the Arlacel-65 aqueous solution of the Luo Shamu of surfactant 1% under logical condition of nitrogen gas, high-speed stirred is 30 minutes under 30～50 ℃ of temperature conditions, stops logical nitrogen; Solution after stirring was carried out ultrasonic Treatment 1～10 minute, add Osmitrol, be sub-packed in the cillin bottle every bottle of 2ml, freeze dried finished product to 500ml.
Embodiment 3
Primary raw material: activated feedstock hydroxy camptothecin 200mg; Fabaceous lecithin 700mg; Surfactant poloxamer 500mg or tween 80 600mg or Arlacel-65 600mg; Mannitol 1500mg
Hydroxy camptothecin and fabaceous lecithin are placed the 500ml container, add acetone 150ml or chloroform 150ml or dehydrated alcohol 150ml, heating for dissolving in 50～60 ℃ water-bath; Using reduction vaporization then, is under 40～60 ℃ of conditions in temperature, boils off solvent; Add aqueous solution or tween 80 aqueous solution or the Arlacel-65 aqueous solution of the Luo Shamu of surfactant 1% under logical condition of nitrogen gas, high-speed stirred is 30 minutes under 30～50 ℃ of temperature conditions, stops logical nitrogen; Solution after stirring was carried out ultrasonic Treatment 1～10 minute, add Osmitrol, be sub-packed in the cillin bottle every bottle of 2ml, freeze dried finished product to 500ml.
Embodiment 4
Primary raw material: activated feedstock hydroxy camptothecin 500mg; Fabaceous lecithin 1000mg; Surfactant poloxamer 2000mg or tween 80 2000mg or Arlacel-65 2000mg; Mannitol 2000mg
Hydroxy camptothecin and fabaceous lecithin are placed the 1000ml container, add acetone 300ml or chloroform 300ml or dehydrated alcohol 300ml, heating for dissolving in 50～60 ℃ water-bath; Using reduction vaporization then, is under 40～60 ℃ of conditions in temperature, boils off solvent; Add aqueous solution or tween 80 aqueous solution or the Arlacel-65 aqueous solution of the Luo Shamu of surfactant 1% under logical condition of nitrogen gas, high-speed stirred is 50 minutes under 30～50 ℃ of temperature conditions, stops logical nitrogen; Solution after stirring was carried out ultrasonic Treatment 1～10 minute, add Osmitrol, be sub-packed in the cillin bottle every bottle of 2ml, freeze dried finished product to 1000ml.
Medicine to above-mentioned prepared is done quality testing:
Assay: get the hydroxycamptothecin nano lyophilized powder, with mobile phase (methanol: water=6: 4) dissolve and be settled to 100ml, the degassing, get 20ml and inject HPLC, the record chromatogram as external standard, is pressed external standard method with reference substance solution, with calculated by peak area, the content that gets hydroxy-camptothecin base in the sample is for indicating 97.8%, 98.6%, 98.0%, 98.2% of sample.
Envelop rate is measured: one of sample thief adds water 12ml dissolving, solution liquid is moved in the centrifuge tube, centrifugal 1 hour at 4 ℃ 40000 rev/mins, supernatant is poured in the 25ml volumetric flask, use methanol constant volume, get 20 μ l sample introductions, the record chromatogram by Chinese Pharmacopoeia method computational envelope rate is: 98.2%, 98.73%, 98.5%, 98.3%.
Size is measured: one of sample thief, add water 10ml dissolving, 12000 rev/mins centrifugal 10 minutes, outwell supernatant and add fresh water again, disperse again, do the dialysis electrolysis through 1% phosphorus ursolic acid background stain and observe, recording the sample average particle diameter is 318nm.
With the medicine nanometer particle size of above-mentioned preparation is 50～800nm, carries out following experiment:
1, the metabolism in animal body of basic camptothecine nano powder pin distributes:
Select 18 of the big ear rabbits of Japan of 2.5～3.0kg, be divided into 6 groups, every group 3 at random, enter nanoneedle and lyophilized injection type 3 dosage groups (2.5,5.0,7.5mg/kg) separately respectively.The all fasting 12 hours before experiment of every rabbit, after weighing respectively according to place group dosage conversion dosage, the single dose one edge intravenous injection of picking up the ears, and get blood in another and vein in required time, plasma sample is handled, measurement result, the regression equation calculation blood drug level of substitution respective standard curve, data see Table 1;
Table 1
Dosage (mg/kg) time (min)
2 5 10 15 20 30 45 60 90 120 240 480 720 1440 2160
Receive 2.5Mean 3274.82 1556.45 739.89 578.56 481.43 278.98 219.76 139.05 92.60 61.13 40.25 0000
Rice SD 1402.11 669.99 33.00 51.86 88.93 45.48 105.02 54.72 19.28 9.50 11.46
Powder 5.0Mean 5761.57 3477.35 1326.65 946.36 818.66 645.05 459.29 255.34 145.24 65.51 36.22 0000
SD 627.31 129.22 70.34 156.20 163.88 213.55 35.09 14.12 35.29 12.12 7.59
Pin 7.5Mean 5620.92 3488.78 1876.61 1460.22 1093.42 849.87 543.76 356.66 245.84 144.36 60.14 37.38 27.85 28.39 31.37
SD 768.566 570.77 329.54 181.56 185.27 185.76 1300.00 43.86 9.01 33.39 15.66 13.66 20.89 15.29 35.47
General 2.5Mean 10533.13 5587.42 2625.25 1582.84 1093.24 539.33 271.94 148.80 73.37 54.82 26.97 0000
Logical SD 5293.28 2131.36 971.37 710.07 396.05 156.37 75.35 49.17 26.99 29.83 22.75
Powder 5.0Mean 1743.22 11508.48 7210.40 5919.26 3617.44 1764.04 890.99 427.20 172.03 95.35 29.40 0000
SD 3003.63 3450.35 1876.85 679.66 345.11 308.93 46.36 79.14 29.20 36.18 9.84
Pin 7.5Mean 16938.35 8364.59 5918.58 5147.75 4533.79 2579.43 1053.54 602.85 194.56 87.75 21.46 29.83 31.00 00
SD 5357.53 1997.32 271.78 808.45 779.84 1167.00 170.44 93.37 8.75 22.59 9.89 11.83 34.84
Above-mentioned data show, nanoneedle and lyophilizing pin are under high, medium and low three dosage separately, raise with the increase of dosage the position of drug-time curve on the one hand, the trend of three curvilinear motions is consistent on the other hand, and prompting increases the physiological disposition that dosage does not obviously change medicine within the specific limits.
Give the medicine of same dose through intravenous injection, apparently higher than the nano powder pin, the Cmax of freeze-dried powder is 3 times with the dosage nanoneedle to freeze-dried powder at the blood drug level of starting stage.Show that the nano powder pin is faster than lyophilizing pin, more be distributed in the histoorgan.
Pharmacokinetic parameter: gained is respectively organized drug level-time data input 3p97 pharmacokinetics calculation procedure, at first select best mode model and weight according to master data result of calculation, then total data is done batch processing and calculate, determine pharmacokinetic parameter.Analysis-by-synthesis relatively after, think that the common flour injection is with two-compartment model and I/C
2Curve fitting is better during the medicine of weight calculation, and the nano powder injection is with three-compartment model and I/C
2Curve fitting the best during the medicine of weight calculation.Pharmacokinetic parameter sees Table 2:
Table 2
| The common flour injection | The nano powder pin |
| Parameter | 2.5mg/kg | 5.0mg/kg | 7.5mg/kg | 2.5mg/kg | 5.0mg/kg | 7.5mg/kg |
| C max(g/ml)A (g/ml) a (l/min)0.58±0.22 β (l/min)V (c)(l/kg)T 1/2a T 1/2β AUC (min.ug/ml)CL (s)/(kg.min)K10 (l/min)K21 (l/min)K12 (l/min)K13 (l/min)K31 (l/min) | 10.53±5.29 10.28±2.74 0.152±0.048 1.40±0.47 0.021±0.006 0.239±0.054 4.823±1.315 33.874±8.262 100.06±34.54 0.027±0.010 0.112±0.019 0.030±0.013 0.032±0.022 | 17.47±3.00 16.11±3.64 0.089±0.010 2.73±2.90 0.022±0.006 0.295±0.061 7.886±0.959 32.386±10.299 241.69±29.72 0.021±0.002 0.072±0.009 0.028±0.008 0.012±0.002 | 16.94±5.36 9.72±2.88 0.078±0.024 0.31±0.16 0.025±0.014 0.613±0.098 9.704±3.666 39.512±30.359 222.87±9.67 0.034±0.002 0.056±0.011 0.036±0.026 0.010±0.006 | 3.27±1.40 1.43±0.75 0.095±0.045 0.75±0.38 0.013±0.007 0.437±0.434 8.536±4.073 66.421±37.874 50.65±12.47 0.052±0.014 0.205±0.162 0.185±0.033 0.226±0.199 0.111±0.084 0.022±0.011 | 5.76±0.63 3.59±5.05 0.112±0.143 0.67±0.21 0.018±0.007 0.513±0.105 17.578±14.564 43.114±21.133 81.93±12.31 0.062±0.009 0.122±0.016 0.415±0.607 0.089±0.082 0.049±0.060 0.028±0.018 | 5.62±0.77 1.78±0.85 B(ug/ml) 0.054±0.009 0.013±0.005 0.785±0.141 12.960±1.892 57.390±17.254 106.91±9.52 0.071±0.006 0.091±0.014 0.138±0.070 0.164±0.140 0.041±0.009 0.022±0.007 |
The nanometer group is eliminated the half-life than the prolongation of common flour injection as seen from the above table, and nanoneedle is described, and retention time is longer in vivo.
The drug targeting test, promptly hydroxycamptothecin nano injectable powder and common lyophilized injectable powder are in the main tissue distribution situation of mice relatively:
6 groups of mices are given the nano powder pin for 3 groups, and 3 groups give isodose common freeze-dried powder.Mice is pressed 10mg.kg
-1After the dosage tail vein injection gave hydroxy camptothecin, two kinds of drug forms saw Table 3 in tissue distribution assays in 15 minutes, 60 minutes, 120 minutes.Wherein cardiac muscular tissue has only 15 minutes groups of nanoneedle can measure extremely low drug level, and other times point does not all detect.
Table 3
| Group | Tissue | Time minute | Average content (ng/ml) | Standard deviation | 95％Cl for Mean | Minima | Maximum | |
| Low combination rate | High-bonding-ratio | |||||||
| Common | Liver | 15 60 120 | 1693.41 2282.97 2985.07 | 1368.93 2048.06 5077.01 | 427.36 -260.04 1710.38 | 2959.47 4825.98 7680.53 | 316.08 332.71 117.11 | 3557.47 5626.78 14119.44 |
| Lung | 15 | 143.55 | 58.93 | 89.05 | 198.05 | 85.58 | 222.59 | |
| The powder pin | 60 120 | 124.96 189.66 | 57.07 119.04 | 72.17 79.56 | 177.74 299.76 | 86.89 87.30 | 229.23 351.3 | |
| Stomach | 15 60 120 | 284.47 373.79 1591.48 | 199.27 474.62 2114.63 | 37.04 -65.16 -627.69 | 531.9 812.73 3810.65 | 57.98 32.66 133.44 | 604.75 1219.91 5209.35 | |
| Kidney | 15 60 120 | 871.22 134.21 860.55 | 801.12 83.29 1111.79 | 130.31 57.18 -167.69 | 1612.13 211.25 1888.78 | 206.12 64.47 81.84 | 2088.05 272.58 2935.98 | |
| Intestinal | 15 60 120 | 871.22 134.21 860.55 | 801.12 83.29 1111.79 | 130.31 57.18 -167.69 | 1612.13 211.25 1888.78 | 206.12 64.47 81.84 | 2088.05 272.58 2935.98 | |
| Spleen | 15 60 120 | 85.61 71.96 130.31 | 6.79 6.55 100 | 77.18 65.90 36.99 | 94.05 78.01 223.64 | 78.59 64.46 70.39 | 96.97 93.71 347.38 | |
| 15 60 120 | ＜100.00 ＜100.00 ＜100.00 | |||||||
| Sodium rice flour pin | Liver | 15 60 120 | 63775.03 52600.94 43739.0 | 25166.71 22858.48 27341.46 | 32526.44 24218.38 9790.12 | 95023.63 80983.50 77687.93 | 41360.59 29074.37 4938.02 | 106149.8 89316.77 72056.25 |
| Lung | 15 60 120 | 624.25 239.04 88.82 | 307.42 81.09 6.18 | 339.94 164.05 83.10 | 908.57 314.04 94.54 | 183.76 156.66 82.18 | 1140.67 405.78 101.86 | |
| Stomach | 15 60 120 | 1539.01 145.37 248.42 | 1325.60 75.95 329.92 | -106.94 65.67 -97.80 | 3184.96 225.08 594.65 | 507.03 33.60 50.40 | 3819.35 227.17 909.62 | |
| Kidney | 15 60 120 | 14682.41 1438.77 756.98 | 9095.38 1231.14 741.02 | 6270.59 300.16 71.64 | 23094.24 2577.38 1442.31 | 3407.98 405.44 125.70 | 28338.69 3470.75 2271.75 | |
| Intestinal | 15 60 120 | 611.85 1288.26 1344.01 | 2528.33 588.53 974.10 | 1273.54 557.51 443.12 | 5950.17 2019.02 2244.90 | 658.62 689.34 471.09 | 7050.39 2116.30 3395.96 | |
| Spleen | 15 | 11278.13 | 8221.27 | 3674.72 | 18881.54 | 3309.36 | 22883.63 |
| 60 120 | 1466.09 1232.20 | 660.07 987.21 | 855.63 319.19 | 2076.56 2145.23 | 414.38 171.20 | 2544.69 2673.95 | ||
| The heart | 15 60 120 | 386.44 ＜100.00 ＜100.00 | 157.23 | 136.26 | 636.62 | 249.62 | 612.89 |
Show that by above-mentioned analysis of experimental data result nanoneedle of the present invention is clear and definite to the targeting of hepatic tissue, this shows drug level high in the hepatic tissue on the one hand, shows as high concentration medicine on the other hand and is organized in retaining of interior long period of hepatic tissue.
The good biomembrane handling capacity of nanoneedle shows that also hydroxy camptothecin also has higher concentration in kidney and the spleen, and common lyophilized injectable powder is all very low at each tissue concentration.
The concentration of nanoneedle in liver is the highest.The drug distribution of main organs is in proper order: liver,kidney,spleen intestinal, stomach, lung, the heart.The common distribution of hydroxy camptothecin lyophilizing pin in each main organs is all lower, and the mean drug concentration that records in the maximum intestinal of drug distribution also is lower than 10000ng/g.
Nano powder injection group at remedy,tissue's substrate concentration of each main organs apparently higher than common injectable powder group (P＜0.05), wherein liver drug concentration is 37.66 times (15 minutes), 23.04 times (60 minutes) and 14.65 times (120 minutes) of common injectable powder, also is injectable powder group ten times or more common with the time at kidney and spleen drug level.But the maintenance high concentration of medicine long period in hepatic tissue after the nanoneedle administration simultaneously had significant difference with the hepatic tissue drug level that recorded in 120 minutes in relatively in 15 minutes.
Claims (7)
1, a kind of targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation, it is by the primary raw material of weight portion: activated feedstock hydroxy camptothecin 1～5, carrier fabaceous lecithin 1～10, surfactant poloxamer or tween 80 or Arlacel-65 1～20, lyophilizing adjuvant 2～20 is formed.
2, targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation according to claim 1 is characterized in that described lyophilizing adjuvant adopts mannitol.
3, a kind of preparation method of targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation, its characterization step is:
(1) with hydroxy camptothecin and fabaceous lecithin with solvent acetone or chloroform or dissolve with ethanol;
(2) reduction vaporization boils off solvent;
(3) under logical condition of nitrogen gas, the aqueous solution of surfactant poloxamer or tween 80 or Arlacel-65 is joined in the mixture of step (2) high-speed stirred;
(4) solution of ultrasonic Treatment step (3) is 1～10 minute;
(5) aqueous solution with the lyophilizing adjuvant joins in the solution of step (4);
(6) solution with step (5) carries out lyophilizing.
4, as the preparation method of targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation as described in the claim 3, it is characterized in that: the solution temperature of described step (1) is 50～60 ℃.
5, as the preparation method of targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation as described in the claim 3, it is characterized in that: the temperature that described step (2) boils off solvent is 40～60 ℃.
6, as the preparation method of targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation as described in the claim 3, it is characterized in that: the whipping temp of described step (3) is 30～50 ℃.
7, as the preparation method of targeting hydroxy camptothecin fabaceous lecithin nano freeze-dried powder pin preparation as described in the claim 3, it is characterized in that: the weight portion of described raw material is an activated feedstock hydroxy camptothecin 1～5, carrier fabaceous lecithin 1～10, surfactant poloxamer or tween 80 or Arlacel-65 1～20, lyophilizing adjuvant 2～20.
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| CN101461787B (en) * | 2008-05-07 | 2011-04-06 | 郑州大学 | Preparation method of hydroxycamptothecin nano crystal lyophilized powder for injection preparation |
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