CN105214103B - For malignant tumour and the metal ion reagent and image preparation of the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modality imaging - Google Patents

For malignant tumour and the metal ion reagent and image preparation of the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modality imaging Download PDF

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CN105214103B
CN105214103B CN201510667003.5A CN201510667003A CN105214103B CN 105214103 B CN105214103 B CN 105214103B CN 201510667003 A CN201510667003 A CN 201510667003A CN 105214103 B CN105214103 B CN 105214103B
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metal ion
reagent
metal
cardiovascular
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CN105214103A (en
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王雪梅
赵春秋
杜天宇
任发
来兰梅
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Southeast University
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Southeast University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/04X-ray contrast preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/06Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/22Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations

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Abstract

It is used for malignant tumour and the metal ion reagent and image preparation of the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modality imaging the invention discloses a kind of.The metal ion reagent is the aqueous solution of metal ion, and metal ion is formulated by least one of iron ion or ferrous ion and magnesium ion, transition metal ions, rare earth ion and precious metal ion;Transition metal ions is the mixture of one or both of cerium ion, zinc ion;The molar ratio of iron ion or ferrous ion and other metal ions is 5~1:1.Image preparation is synthesized by metal ion reagent in lesions position by biology in situ effect fixed point.Metal ion reagent of the present invention can in sick cell fabricated in situ multi-modality imaging image preparation, can non-intrusion type highly sensitive quick tracer dynamic in real time is carried out to lesions position and monitoring, inanimate object toxic side effect, detection method are simple and easy to do.

Description

For malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and it is multi-modal into The metal ion reagent and image preparation of picture
Technical field
The present invention relates to medical imaging field, more particularly to one kind to be used for malignant tumour and cardiovascular and cerebrovascular relevant disease early stage Quick detection and the metal ion reagent and image preparation of multi-modality imaging.
Background technology
Cancer, also known as malignant tumour, have become the maximum killer of 21st century influence human body health and life. In clinical treatment work, the discovery of malignant tumour depends on the Examined effects such as iconography, pathology and conventional tumor-marker. The existing Imaging Method for being usually used in diagnosing tumour mainly includes MRI (Magnetic resonance imaging), and SPECT (break by single photon emission Layer imaging), PET (positron emission tomography), these methods have certain limitation, though clinically using more Year, but lack enough susceptibility and specificity, it is often more important that be difficult to early detection tumour.If can early detection canceration site And it is so far for one of most effective treatment method of cancer to carry out targeted therapy to it in time.In order to improve tumor patient Survival rate and quality of life, study more advanced diagnostic method and preparation, come realize it is accurate, timely early diagnosis of cancer and Treatment is always one of direction that people make great efforts.
With deepening continuously for biomedical research, visual bio-imaging technology is played the part of in life science and medical domain More and more important role is drilled, for other bio-imaging technologies, fluorescence imaging has cheap, Imaging fast The characteristics of, and the sensitiveness single molecular imaging with molecular level, and the growth of tumour can be marked and traced.In addition, Imaging-PAM can measure the tumour growth situation of various cancer models, monitor cancer cell in treatment of cancer in real time Change;The quantitative detection that hurtless measure ground is carried out to mouse entirety primary tumor, metastatic tumor and Spontaneous Tumor.
The multi-modality imaging that fluorescence imaging is combined with CT imagings, Magnetic resonance imaging, ultrasonic imaging and photoelectronic imaging Technology, can effectively utilize the advantage of various imaging techniques, learn from other's strong points to offset one's weaknesses, early stage malignant tumour, real-time, quick diagnosis In there is huge application prospect.But how to search out a kind of multi-modality imaging system that can be used for several imaging means at the same time Agent also becomes new challenge, and the targeting of many problems such as preparation is bad, and toxicity in vivo is big, stability difference and internal The weak grade of signal strength is all urgently to be resolved hurrily.
The content of the invention
Goal of the invention:For the existing a variety of technologies for being directed to malignant tumour and cardiovascular and cerebrovascular relevant disease early detection Defect, the present invention provides a kind of for malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modality imaging Metal ion reagent, the metal ion reagent can in the sick cells such as tumour fabricated in situ be used for multi-modality imaging image Preparation, can non-intrusion type carry out dynamic in real time highly sensitive quick tracer and monitoring to lesions position, realize to malignant tumour Detected with cardiovascular and cerebrovascular relevant disease early stage, quick, multi-modality imaging, and inanimate object toxic side effect, detection method are simple and easy to do.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions:
It is of the present invention for malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modality imaging Metal ion reagent, it is the aqueous solution containing metal ion, the metal ion by iron ion or ferrous ion and magnesium from At least one of son, transition metal ions, rare earth ion and precious metal ion are formulated;Wherein, the transition Metal ion is the mixture of one or both of cerium ion, zinc ion;In metal ion reagent, iron ion or ferrous ion Molar ratio with other metal ions is 5~1:1.
Contain ferrous ion or iron ion in metal ion reagent of the present invention, ferrous ion or iron ion and other metals from Son, which is engaged, to play a role, other metal ions are in magnesium ion, transition metal ions, rare earth ion and precious metal ion At least one.It will be understood by those skilled in the art that in metal ion reagent, iron ion or ferrous ion and other metals from The molar ratio of son is 5~1:1, herein, be using iron ion in metal ion reagent or the metal ion beyond ferrous ion as Entirety calculates.
The rare earth ion is the mixture of one or both of europium ion, lanthanum ion.
The precious metal ion is the mixture of one or both of gold ion, silver ion, platinum ion.
Preferably, the metal ion is by iron ion or ferrous ion and magnesium ion, transition metal ions, rare earth metal One or both of ion and precious metal ion are formulated.
Preferably, the metal ion by iron ion or ferrous ion and magnesium ion, cerium ion, zinc ion, europium ion, One or both of lanthanum ion, gold ion, silver ion, platinum ion are formulated.Further, the metal ion combination of preparation Can be iron ion, europium ion and zinc ion;Zinc ion, gold ion and ferrous ion;Europium ion and ferrous ion;Gold ion, Silver ion and iron ion;Zinc ion and ferrous ion;Deng.
Preferably, in metal ion reagent, the concentration of iron ion or ferrous ion is 5~10mmol/L.Metal ion tries The concentration and usage amount of agent are according to using depending on object.
In the metal ion reagent of the present invention, metal ion is carried by the compound of water-soluble ion containing respective metal For e.g., cerium ion is provided by soluble compound containing cerium ion such as cerous acetate, cerous nitrate, ceric sulfate etc.;Zinc ion is by can Such as zinc chloride, zinc nitrate, zinc gluconate, zinc sulfate etc. containing zinc ion compound of dissolubility provide;Gold ion is by solubility Compound containing gold ion such as gold chloride, eight chlorinations, four gold medal, chlorauride, gold trichloride, gold monochloride etc. provide;Silver ion is by can Such as silver-colored ammonia of the Ag-containing compound of dissolubility, silver nitrate provide;Europium is by the soluble compound containing europium ion such as europium nitrate, sulfuric acid Europium, Europium chloride, europium, europium carbonate, acetic acid europium etc. provide;Iron ion or ferrous ion contain iron ion or ferrous iron by soluble The compound of ion such as ferric nitrate, iron chloride, ferrous nitrate, frerrous chloride etc. provide.
The metal ion reagent of the present invention is dissolved in water by the compound of metal ion and is made, and water can use ultra-pure water.Tool It is as follows that body prepares measure:
By other metal ion (magnesium ion, transition metal ions, precious metal ion and rare earth ions, according to specific Formula make choice) be dissolved in ultra-pure water respectively, be configured to certain concentration (5~10mmol).By other metal ion (mistakes Cross metal ion, precious metal ion and rare earth ion) with iron ion or ferrous ions soln according to volume ratio 1:1 to 1:5 Between ratio mixing be dissolved in ultra-pure water, be configured to certain concentration (5~10mmol).
Using prepared other metal ions (magnesium ion, transition metal ions, precious metal ion and rare earth metal from Son) body fluid (such as blood or serum) or urine are tested with the hybrid detection reagent of iron ion or ferrous ion, tie Fruit shows, the optics and electrochemical properties of malignant tumour and cardiovascular and cerebrovascular relevant disease experimental group there occurs significant change, And Normal group is without significant change.
Quickly detected for malignant tumour and cardiovascular and cerebrovascular relevant disease early stage present invention also offers one kind and multi-modal The image preparation of imaging, is synthesized by the metal ion reagent in lesions position by biology in situ effect fixed point.
For malignant tumour, the lesions position is liver cancer, lung cancer, cervical carcinoma, leukaemia, osteosarcoma, brain tumor or white The lesions position of blood disease;For cardiovascular and cerebrovascular relevant disease, the lesions position is cerebral apoplexy or the lesion of senile dementia Position.
The present invention provides described for malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modal Application of the metal ion reagent of imaging in malignant tumour and cardiovascular and cerebrovascular related disease target multi-modality imaging.With tumor model Illustrate its applying step exemplified by mouse, when which is used for cancer target imaging, 0.05~0.2ml metal ions are tried Agent is by the way that in tail vein injection or local injection to control group model mouse and tumor model mouse body, metal ion reagent can quickly exist The lesions position enrichment of mouse and fabricated in situ image preparation, use small animal living body phosphorimager, CT imagers, ultrasonic imaging Instrument and MRI are imaged model mouse, when imaging time window is 1~72 small.
Present invention also offers described to be used for malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multimode Application of the metal ion reagent of state imaging in contrast agent is prepared.
The contrast agent is used in malignant tumour and the detection of cardiovascular and cerebrovascular relevant disease multi-modality imaging.
Compared with prior art, beneficial effects of the present invention are:
(1) metal ion reagent of the present invention, image preparation are using the excellent transition metal ions of biocompatibility, rare earth gold Belong to ion and precious metal ion etc., be engaged with iron ion or ferrous ion, by being acted on target biology bioactive molecule fixed point Realize that the accurate targeting mark of related lesions position is detected with fast imaging, the real-time dynamic high of live body non-intrusion type can be carried out Sensitive quick tracer and monitoring.(2) metal ion reagent of the invention, image preparation inanimate object toxic side effect, detection method letter Easy row, effectively prevent the chemical reagent introduced in Conventional nano material synthesis processes and nano material stabilizer to organic Bio-toxicity caused by body, while avoid and be eliminated after Conventional nano material is easily captured by reticuloendothelial system so as to arrive The shortcomings that up to lesion tissue, to realize that live body targeted imaging is analyzed.(3) metal ion reagent of the invention, image preparation can In being detected applied to the multi-modality imaging of malignant tumour and cardiovascular and cerebrovascular relevant disease, imaging effect is good.The result shows that:Pass through CT, MRI, fluorescence, ultrasound, optoacoustic and Raman spectrum (SERS) imaging etc. can quick recognition detection malignant tumour and cardiovascular and cerebrovasculars Relevant disease site of pathological change is simultaneously enriched in the region, realizes the accurate mark of targeting lesions position.It these results suggest that the present invention Metal ion reagent, image preparation can realize the early stage to cancer and cardiovascular and cerebrovascular relevant disease, quick, multi-modal (CT, surpass Sound, fluorescence, optoacoustic and MRI etc.) image checking.The achievable not damaged of the present invention, original position, the malignant tumour of dynamic targeting in real time It is imaged with cardiovascular and cerebrovascular relevant disease lesions position, carries out multiple dimensioned diagnosis synchronous with multi-modal and accurate targeting positioning with controlling Treat, there is wide medical application prospect.
Brief description of the drawings
Fig. 1 is fluorescence imaging analysis result figure when cervical carcinoma model mouse time point is 24 small in embodiment 1;
Fig. 2 is MRI imaging analysis result figures when cervical carcinoma model mouse time point is 24 small in embodiment 1.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention Rather than limit the scope of the invention, after the present invention has been read, various equivalences of the those skilled in the art to the present invention The modification of form falls within the application appended claims limited range.
Embodiment 1
1st, the preparation of metal ion reagent
The excellent metal ion reagent of biocompatibility is prepared, specific steps include:
Compound zinc chloride, europium sulfate are dissolved in ultra-pure water respectively, are configured to the solution that concentration is 10mmol/L;By chlorine Change after zinc solution, the mixing of europium sulfate equal proportion again with the ferric chloride in aqueous solution (iron chloride is dissolved with ultra-pure water) of 10mmol/L according to Volume 1:1 mixing, obtains metal ion reagent.
2nd, testing in vitro
Body fluid (such as blood or serum) or urine are tested using the metal ion reagent of the present embodiment, as a result It has been shown that, the optics and electrochemical properties of tumor experiment group after the addition of metal ion reagent there occurs significant change, and just Normal control group is without significant change.
Wherein, body fluid comes from normal person and leukaemia people, and urine comes from normal nude mice and tumor model nude mice.Tumour mould Type nude mice is liver cancer (HepG2 cell lines) and cervical carcinoma (Hela cell lines), plants knurl mode and subcutaneously plants knurl for oxter.Optical detection Method, which includes ultra-violet absorption spectrum measure and fluorescence spectrometry, electrochemical detection method, includes cyclic voltammetry and difference volt-ampere Impulse method.
3rd, fluorescence imaging analysis
Fluorescence imaging analysis is carried out to tumor model mouse using the metal ion reagent of the present embodiment, specific steps include:
(1) the tumor model mouse of liver cancer (HepG2 cell lines) and the tumor model mouse of cervical carcinoma (Hela cell lines) are built, Plant knurl mode and subcutaneously plant knurl for oxter.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on tumor model mouse.
(3) it is imaged using living body fluorescent imager and is carried out qualitative and quantitative analysis to it.Specifically, utilize live body Phosphorimager be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, so The experimental model mouse is subjected to gas anesthesia with 5% isoflurane afterwards, is placed on small animal living body imager operation platform, is selected Select 420nm and 480nm wavelength excitation collection image.
The results show that the change for first increasing and weakening afterwards is presented with the time in the fluorescence intensity of the oxter tumor region of model mouse Change, illustrate that image preparation with specific fabricated in situ or can be enriched in lesion region, be then gradually metabolized again.
4th, CT imaging analysis
CT imaging analysis are carried out to tumor model mouse using the metal ion reagent of the present embodiment, specific steps include:
(1) the tumor model mouse of liver cancer (HepG2 cell lines) and the tumor model mouse of cervical carcinoma (Hela cell lines) are built, Plant knurl mode and subcutaneously plant knurl for oxter.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on tumor model mouse.
(3) it is imaged using toy CT imagers and is carried out qualitative and quantitative analysis to it.Specifically, using CT into As instrument be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, then should Experimental model mouse carries out gas anesthesia with 5% isoflurane, is placed on small animal living body CT imager operation platforms, selects naked The oxter tumor region of mouse, gathers image.
The results show that the oxter tumor region of model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).
5th, MRI imaging analysis
MRI imaging analysis are carried out to tumor model mouse using the metal ion reagent of the present embodiment, specific steps include:
(1) the tumor model mouse of liver cancer (HepG2 cell lines) and the tumor model mouse of cervical carcinoma (Hela cell lines) are built, Plant knurl mode and subcutaneously plant knurl for oxter.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on tumor model mouse.
(3) it is imaged using toy MRI imagers and is carried out qualitative and quantitative analysis to it.Specifically, utilize MRI (7.0T) imager be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, Then the experimental model mouse is subjected to gas anesthesia with 5% isoflurane, is placed on small animal living body MRI imager operation platforms On, the lesion region of nude mice is selected, gathers image.
The results show that the oxter tumor region of model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).
Embodiment 2
1st, the preparation of metal ion reagent
The excellent metal ion reagent of biocompatibility is prepared, specific steps include:
Compound zinc gluconate is dissolved in ultra-pure water, is configured to the solution that concentration is 10mmol/L;By zinc gluconate The ferrous chloride aqueous solution of solution and 10mmol/L are according to volume 1:3 mixing, obtain metal ion reagent.
2nd, testing in vitro
Body fluid (such as blood or serum) or urine are tested using metal ion reagent, the results show that tumour The optics and electrochemical properties of experimental group after the addition of metal ion reagent there occurs significant change, and Normal group without Significant change.
Wherein, body fluid comes from normal person and leukaemia people, and urine comes from normal nude mice and tumor model nude mice.Tumour mould Type nude mice is liver cancer (HepG2 cell lines) and cervical carcinoma (Hela cell lines), plants knurl mode and subcutaneously plants knurl for oxter.Optical detection Method, which includes ultra-violet absorption spectrum measure and fluorescence spectrometry, electrochemical detection method, includes cyclic voltammetry and difference volt-ampere Impulse method.
3rd, fluorescence imaging analysis
Fluorescence imaging analysis, fluorescence imaging analysis side are carried out to tumor model mouse using the metal ion reagent of the present embodiment Method is the same as embodiment 1.
The results show that the change for first increasing and weakening afterwards is presented with the time in tumor model mouse lesion region fluorescence intensity, say Bright image preparation with specific fabricated in situ or can be enriched in lesion region, then gradually metabolism again.With in embodiment 1 Fluorescence intensity is compared, and the fluorescence intensity of the present embodiment has weakened.
4th, CT imaging analysis
CT imaging analysis are carried out to tumor model mouse using the metal ion reagent of the present embodiment, CT i mage analysis methods are same Embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).Compared with Example 1, the particle contrast in the present embodiment is more preferable, point Cloth is more uniform.
5th, MRI imaging analysis
MRI imaging analysis, MRI i mage analysis methods are carried out to tumor model mouse using the metal ion reagent of the present embodiment With embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).Compared with Example 1, the particle contrast in the present embodiment is more preferable, point Cloth is more uniform.
Embodiment 3
1st, the preparation of metal ion reagent
The excellent metal ion reagent of biocompatibility is prepared, specific steps include:
Compound gold chloride, silver nitrate are dissolved in ultra-pure water respectively, are configured to the solution that concentration is 10mmol/L;By chlorine Auric acid solution, silver nitrate solution equal proportion mixing after again the ferric chloride in aqueous solution with 10mmol/L according to volume 1:2 mixing, obtain golden Belong to Ion reagent.
2nd, testing in vitro
Body fluid (such as blood or serum) or urine are tested using metal ion reagent, the results show that tumour The optics and electrochemical properties of experimental group after the addition of metal ion reagent there occurs significant change, and Normal group without Significant change.
Wherein, body fluid comes from normal person and leukaemia people, and urine comes from normal nude mice and tumor model nude mice.Tumour mould Type nude mice is liver cancer (HepG2 cell lines) and cervical carcinoma (Hela cell lines), plants knurl mode and subcutaneously plants knurl for oxter.Optical detection Method, which includes ultra-violet absorption spectrum measure and fluorescence spectrometry, electrochemical detection method, includes cyclic voltammetry and difference volt-ampere Impulse method.
3rd, fluorescence imaging analysis
Fluorescence imaging analysis, fluorescence imaging analysis side are carried out to tumor model mouse using the metal ion reagent of the present embodiment Method is the same as embodiment 1.
The results show that the change for first increasing and weakening afterwards is presented with the time in tumor model mouse lesion region fluorescence intensity, say Bright image preparation with specific fabricated in situ or can be enriched in lesion region, then gradually metabolism again.
4th, CT imaging analysis
CT imaging analysis are carried out to tumor model mouse using the metal ion reagent of the present embodiment, CT i mage analysis methods are same Embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).Compared with Example 1, the particle contrast in the present embodiment is more preferable, point Cloth is more uniform.
5th, MRI imaging analysis
MRI imaging analysis, MRI i mage analysis methods are carried out to tumor model mouse using the metal ion reagent of the present embodiment With embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).
Embodiment 4
1st, the preparation of metal ion reagent
The excellent metal ion reagent of biocompatibility is prepared, specific steps include:
Compound europium nitrate is dissolved in ultra-pure water, is configured to the solution that concentration is 10mmol/L;By europium nitrate solution with The ferrous chloride aqueous solution of 10mmol/L is according to volume 1:5 mixing, obtain metal ion reagent.
2nd, testing in vitro
Body fluid (such as blood or serum) or urine are tested using metal ion reagent, the results show that tumour The optics and electrochemical properties of experimental group after the addition of metal ion reagent there occurs significant change, and Normal group without Significant change.
Wherein, body fluid comes from normal person and leukaemia people, and urine comes from normal nude mice and tumor model nude mice.Tumour mould Type nude mice is liver cancer (HepG2 cell lines) and cervical carcinoma (Hela cell lines), plants knurl mode and subcutaneously plants knurl for oxter.Optical detection Method, which includes ultra-violet absorption spectrum measure and fluorescence spectrometry, electrochemical detection method, includes cyclic voltammetry and difference volt-ampere Impulse method.
3rd, fluorescence imaging analysis
Fluorescence imaging analysis, fluorescence imaging analysis side are carried out to tumor model mouse using the metal ion reagent of the present embodiment Method is the same as embodiment 1.
The results show that the change for first increasing and weakening afterwards is presented with the time in tumor model mouse lesion region fluorescence intensity, say Bright image preparation with specific fabricated in situ or can be enriched in lesion region, then gradually metabolism again.
4th, CT imaging analysis
CT imaging analysis are carried out to tumor model mouse using the metal ion reagent of the present embodiment, CT i mage analysis methods are same Embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).
5th, MRI imaging analysis
MRI imaging analysis, MRI i mage analysis methods are carried out to tumor model mouse using the metal ion reagent of the present embodiment With embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).Compared with Example 1, the particle contrast in the present embodiment is more preferable, point Cloth is more uniform.
Embodiment 5
1st, the preparation of metal ion reagent
The excellent metal ion reagent of biocompatibility is prepared, specific steps include:
Compound zinc chloride, gold chloride are dissolved in ultra-pure water respectively, are configured to the solution that concentration is 10mmol/L;By chlorine Change the ferrous chloride aqueous solution after zinc, chlorauric acid solution mix in equal volume with 10mmol/L according to volume 1:4 mixing, obtain metal from Sub- reagent.
2nd, testing in vitro
Body fluid (such as blood or serum) or urine are tested using metal ion reagent, the results show that tumour The optics and electrochemical properties of experimental group after the addition of metal ion reagent there occurs significant change, and Normal group without Significant change.
Wherein, body fluid comes from normal person and leukaemia people, and urine comes from normal nude mice and tumor model nude mice.Tumour mould Type nude mice is liver cancer (HepG2 cell lines) and cervical carcinoma (Hela cell lines), plants knurl mode and subcutaneously plants knurl for oxter.Optical detection Method, which includes ultra-violet absorption spectrum measure and fluorescence spectrometry, electrochemical detection method, includes cyclic voltammetry and difference volt-ampere Impulse method.
3rd, fluorescence imaging analysis
Fluorescence imaging analysis, fluorescence imaging analysis side are carried out to tumor model mouse using the metal ion reagent of the present embodiment Method is the same as embodiment 1.
The results show that the change for first increasing and weakening afterwards is presented with the time in tumor model mouse lesion region fluorescence intensity, say Bright image preparation with specific fabricated in situ or can be enriched in lesion region, then gradually metabolism again.
4th, CT imaging analysis
CT imaging analysis are carried out to tumor model mouse using the metal ion reagent of the present embodiment, CT i mage analysis methods are same Embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).
5th, MRI imaging analysis
MRI imaging analysis, MRI i mage analysis methods are carried out to tumor model mouse using the metal ion reagent of the present embodiment With embodiment 1.
The results show that the lesion region of tumor model mouse can significantly detect signal, different from the group of inside tumor Knit density, it can be seen that granular high density material, illustrates that metal ion reagent is assembled in inside tumor targeting specific, and And reduction becomes fluorescence and magnetic material (image preparation).Comparative example 1, the particle contrast in the present embodiment is more preferable, distribution It is more uniform.
Embodiment 6
1st, the preparation of metal ion reagent
The excellent metal ion reagent of biocompatibility is prepared, specific steps include:
Compound zinc chloride, europium sulfate are dissolved in ultra-pure water respectively, are configured to the solution that concentration is 10mmol/L;By chlorine Change zinc solution, europium sulfate equal proportion mixing after again the ferric chloride in aqueous solution with 10mmol/L according to volume 1:1 mixing, obtain metal from Sub- reagent.
2nd, fluorescence imaging analysis
Fluorescence imaging analysis, specific steps bag are carried out to Senlie dementia model mouse using the metal ion reagent of the present embodiment Include:
(1) the Senlie dementia model mouse of Different Month is built.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on Senlie dementia model mouse.
(3) it is imaged using living body fluorescent imager and is carried out qualitative and quantitative analysis to it.Specifically, utilize live body Phosphorimager be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, so The experimental model mouse is subjected to gas anesthesia with 5% isoflurane afterwards, is placed on small animal living body imager operation platform, is selected Select 420nm and 480nm wavelength excitation collection image.
The results show that the fluorescence intensity of lesion region weakens afterwards as the time presents first to increase on senile dementia model mouse Change, illustrate that the preparations such as the ion in reagent with specific fabricated in situ or can be enriched in lesion region, then again by Gradually it is metabolized.At the same time fluorescence intensity show under the same terms, the senile dementia monthly age it is big model mouse enrichment more, fluorescence intensity Bigger, illustrates doubling for lesion.
3rd, CT imaging analysis
CT imaging analysis, specific steps bag are carried out to senile dementia model mouse using the metal ion reagent of the present embodiment Include:
(1) Senlie dementia model mouse is built.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on Senlie dementia model mouse.
(3) it is imaged using toy CT imagers and is carried out qualitative and quantitative analysis to it.Specifically, using CT into As instrument be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, then should Experimental model mouse carries out gas anesthesia with 5% isoflurane, is placed on small animal living body CT imager operation platforms, selects mould The head zone of type mouse, gathers image.
The results show that the head zone of model mouse can significantly detect signal, can different from the tissue density on head To see granular high density material, illustrate that metal ion reagent is assembled in intracerebral portion targeting specific, and and GAP-associated protein GAP With reference to reduction becomes fluorescence and magnetic material (image preparation).
4th, MRI imaging analysis
MRI imaging analysis, specific steps bag are carried out to Senlie dementia model mouse using the metal ion reagent of the present embodiment Include:
(1) Senlie dementia model mouse is built.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on Senlie dementia model mouse.
(3) it is imaged using toy MRI imagers and is carried out qualitative and quantitative analysis to it.Specifically, utilize MRI (7.0T) imager be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, Then the experimental model mouse is subjected to gas anesthesia with 5% isoflurane, is placed on small animal living body MRI imager operation platforms On, the head zone of preference pattern mouse, gathers image.
The results show that the head zone of model mouse can significantly detect signal, can different from the tissue density on head To see granular high density material, illustrate that metal ion reagent is assembled in intracerebral portion targeting specific, and and GAP-associated protein GAP With reference to reduction becomes fluorescence and magnetic material (image preparation).
Embodiment 7
1st, the preparation of metal ion reagent
The excellent metal ion reagent of biocompatibility is prepared, specific steps include:
Compound zinc gluconate, gold chloride are dissolved in ultra-pure water respectively, are configured to the solution that concentration is 10mmol/L; By zinc gluconate, gold chloride equal proportion mix after again the ferrous chloride aqueous solution with 10mmol/L according to volume 1:1 mixing, obtains Metal ion reagent.
2nd, fluorescence imaging analysis
Fluorescence imaging analysis is carried out to stroke model mouse using the metal ion reagent of the present embodiment, specific steps include:
(1) structure cerebral apoplexy model mouse is induced using injury of blood vessel.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on stroke model mouse.
(3) it is imaged using living body fluorescent imager and is carried out qualitative and quantitative analysis to it.Specifically, utilize live body Phosphorimager be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, so The experimental model mouse is subjected to gas anesthesia with 5% isoflurane afterwards, is placed on small animal living body imager operation platform, is selected Select 420nm and 480nm wavelength excitation collection image.
The results show that the change for first increasing and weakening afterwards is presented with the time in the fluorescence intensity of the upper lesion region of stroke model mouse Change, illustrate that the preparations such as the ion in reagent with specific fabricated in situ or can be enriched in the lesion region of hypoxic-ischemic, and Gradually metabolism again afterwards.
3rd, CT imaging analysis
CT imaging analysis are carried out to stroke model mouse using the metal ion reagent of the present embodiment, specific steps include:
(1) structure cerebral apoplexy model mouse is induced using injury of blood vessel.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected on stroke model mouse.
(3) it is imaged using toy CT imagers and is carried out qualitative and quantitative analysis to it.Specifically, using CT into As instrument be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, then should Experimental model mouse carries out gas anesthesia with 5% isoflurane, is placed on small animal living body CT imager operation platforms, selects mould The head zone of type mouse, gathers image.
The results show that the head injury region of model mouse can significantly detect signal, it is close different from the tissue on head Degree, it can be seen that granular high density material, illustrates that damage field targeting specific of the metal ion reagent in intracerebral portion gathers Collection, reduction become fluorescence and magnetic material (image preparation).
4th, MRI imaging analysis
MRI imaging analysis are carried out to stroke model mouse using the metal ion reagent of the present embodiment, specific steps include:
(1) structure cerebral apoplexy model mouse is induced using injury of blood vessel.
(2) by metal ion reagent sterile 0.1mL, by tail vein and it is subcutaneously injected into stroke model mouse.
(3) it is imaged using toy MRI imagers and is carried out qualitative and quantitative analysis to it.Specifically, utilize MRI (7.0T) imager be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, Then the experimental model mouse is subjected to gas anesthesia with 5% isoflurane, is placed on small animal living body MRI imager operation platforms On, the head zone of preference pattern mouse, gathers image.
The results show that the head zone of model mouse can significantly detect signal, can different from the tissue density on head To see granular high density material, illustrate that damage field targeting specific of the metal ion reagent in intracerebral portion is assembled, also Original becomes fluorescence and magnetic material (image preparation).
Comparative example 1
Compound iron chloride is dissolved in ultra-pure water, is configured to the solution that concentration is 10mmol/L, i.e. iron ion agent.
Fluorescence imaging analysis is carried out to tumor model mouse using the iron ion agent of the present embodiment, specific steps include:
(1) the tumor model mouse of liver cancer (HepG2 cell lines) and the tumor model mouse of cervical carcinoma (Hela cell lines) are built, Plant knurl mode and subcutaneously plant knurl for oxter.
(2) by iron ion agent sterile 0.1mL, by tail vein and it is subcutaneously injected on tumor model mouse.
(3) it is imaged using living body fluorescent imager and is carried out qualitative and quantitative analysis to it.Specifically, utilize live body Phosphorimager be imaged, respectively choose 1 it is small when, 4 it is small when, 8 it is small when, 12 it is small when, 24 it is small when, 48 it is small when etc. different time points, so The experimental model mouse is subjected to gas anesthesia with 5% isoflurane afterwards, is placed on small animal living body imager operation platform, is selected Select 420nm and 480nm wavelength excitation collection image.
Produced the results show that the oxter tumor region of model mouse is interior when 1~72 is small without obvious fluorescence signal, explanation Single ferric chloride solution can not be applied to living body fluorescent and be imaged.

Claims (7)

  1. It is 1. a kind of for malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and the metal ion examination of multi-modality imaging Agent, it is the aqueous solution containing metal ion, it is characterised in that the metal ion by iron ion or ferrous ion and magnesium from At least one of son, transition metal ions, rare earth ion and precious metal ion are formulated;Wherein, the transition Metal ion is the mixture of one or both of cerium ion, zinc ion;In metal ion reagent, iron ion or ferrous ion Molar ratio with other metal ions is 5~1:1.
  2. 2. metal ion reagent as claimed in claim 1, it is characterised in that the rare earth ion is europium ion, lanthanum The mixture of one or both of ion.
  3. 3. metal ion reagent as claimed in claim 1, it is characterised in that the precious metal ion for gold ion, silver from The mixture of one or both of son, platinum ion.
  4. 4. metal ion reagent as claimed in claim 1, it is characterised in that in metal ion reagent, iron ion or it is ferrous from The concentration of son is 5~10mmol/L.
  5. 5. a kind of be used for malignant tumour and the image preparation of the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modality imaging, its It is characterized in that, is acted on and determined by biology in situ in lesions position by such as Claims 1 to 4 any one of them metal ion reagent Point synthesis.
  6. 6. it is used for malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and multi-modality imaging as claimed in claim 5 Image preparation, it is characterised in that lesion is derived from liver cancer, lung cancer, cervical carcinoma, osteosarcoma, brain tumor, leukaemia, cerebral apoplexy or old Dementia disease.
  7. 7. as Claims 1 to 4 any one of them be used for malignant tumour and the quick detection of cardiovascular and cerebrovascular relevant disease early stage and Application of the metal ion reagent of multi-modality imaging in contrast agent is prepared.
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