CN114891746A - Preparation method of canine whole blood hematopoietic stem cells - Google Patents

Preparation method of canine whole blood hematopoietic stem cells Download PDF

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Publication number
CN114891746A
CN114891746A CN202111571481.8A CN202111571481A CN114891746A CN 114891746 A CN114891746 A CN 114891746A CN 202111571481 A CN202111571481 A CN 202111571481A CN 114891746 A CN114891746 A CN 114891746A
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dog
hematopoietic stem
blood
stem cells
spf
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邵峰
高帅
王娟
邵春雨
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Qingdao Jinmotang Biotechnology Co ltd
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Qingdao Jinmotang Biotechnology Co ltd
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N5/00Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
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    • C12N5/0602Vertebrate cells
    • C12N5/0634Cells from the blood or the immune system
    • C12N5/0647Haematopoietic stem cells; Uncommitted or multipotent progenitors
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K67/00Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
    • A01K67/02Breeding vertebrates

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Abstract

The invention discloses a preparation method of canine whole blood hematopoietic stem cells, belonging to the technical field of blood products. A preparation method of canine whole blood hematopoietic stem cells comprises the following steps: the method comprises the following steps: matching SPF dogs, wherein the blood type of the SPF dogs is negative blood, the SPF dogs need to be immunized by a conventional quintuplet vaccine and are detected by adopting an indirect ELISA method, and the antibody titer of the SPF dogs reaches 2 9 Above, the SPF dog needs to be matched with a sick dog; step two: carrying out physical examination on the dogs, and periodically collecting venous blood for hematology and serum biochemical detection before blood collection of the matched dogs; the experimental dog is an SPF dog without special pathogen, and has great advantages in the aspect of safety performance, so the prepared blood has good safety performance, hematopoietic stem cells are provided for other sick dogs by taking the SPF greyhound as a volunteer, the safety of blood transfusion is improved, the cure rate of the sick dogs is greatly improved, and the blood transfusion system plays a role in the critical point of diagnosis and treatment of the sick dogsThe intended function.

Description

Preparation method of canine whole blood hematopoietic stem cells
Technical Field
The invention relates to the field of blood products, in particular to a preparation method of canine whole blood hematopoietic stem cells.
Background
Hematopoietic stem cell transplantation, which has been developed for about half a century, has been widely used for the treatment of hematological diseases, and more than 10 ten thousand patients have been subjected to various hematopoietic stem cell transplants worldwide. The treatment of malignant diseases by hematopoietic stem cell transplantation accounts for most of clinical cases, and the invention adopts a method for obtaining hematopoietic stem cells from peripheral blood of SPF dogs to provide perfect hematopoietic stem cells for sick dogs.
Disclosure of Invention
The present invention is directed to a method for producing canine whole blood hematopoietic stem cells, which solves the problems of the background art described above.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of canine whole blood hematopoietic stem cells comprises the following steps:
the method comprises the following steps: the canine matching is carried out, the canine blood type is negative blood, the canine needs to be immunized by a conventional quintuplet vaccine, an indirect ELISA method is adopted for detection, and the antibody titer reaches 2 9 Above, the dog needs to be matched with a sick dog;
step two: carrying out physical examination on the dogs, and periodically collecting venous blood for hematology and serum biochemical detection before blood collection of the matched dogs, wherein each index is in a normal range;
step three: the dog hematopoietic stem cell collection is characterized in that an mobilizing agent is injected every day before the hematopoietic stem cells are collected, and the dog is fed with royal jelly before the hematopoietic stem cells are collected, so that the content of the hematopoietic stem cells is increased.
Preferably, step one, step two and step three are all performed in a completely sterile closed chamber.
Preferably, the dog is an SPF dog, including greyhound, beagle dog, dobby dog, boxer, german shepherd dog, etc., the SPF dog is between 2-4 years of age and between 20-40 kg in weight.
Preferably, the mobilizing agent is a recombinant human granulocyte colony stimulating factor injection: rhG-CSF.
Preferably, the mobilizing agent is injected in an amount of 150 μ g/kg/day subcutaneously 1 time per day for five consecutive days.
Preferably, the fifth day of injection of the mobilizer is the first hematopoietic stem cell harvest.
Preferably, the second collection is performed if the first collection is insufficient for hematopoietic stem cells.
Compared with the prior art, the invention provides a preparation method of canine whole blood hematopoietic stem cells, which has the following beneficial effects:
the experimental dog is an SPF dog without special pathogens, and has great advantages in the aspect of safety performance, so that the prepared blood has good safety performance, and the SPF greyhound dog is used as a volunteer to provide hematopoietic stem cells for other sick dogs, so that the blood transfusion safety is improved, the cure rate of the sick dogs is greatly improved, and the blood transfusion system plays an important role in diagnosis and treatment of the sick dogs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1:
selecting negative Ti-Baker of 2-4 years old with weight of 20-40 kg;
the conventional quintuplet vaccine is used for immunization, an indirect ELISA method is used for detection, and the antibody titer reaches over 29;
the SPF dog needs to be matched with a sick dog;
before blood collection of a matched dog, venous blood needs to be collected regularly for hematology and serum biochemical detection, and all indexes are in a normal range;
peripheral blood was taken directly.
Example 2:
selecting negative Ti-Baker of 2-4 years old with weight of 20-40 kg;
the conventional quintuplet vaccine is used for immunization, an indirect ELISA method is used for detection, and the antibody titer reaches over 29;
the panda needs to be matched with a sick dog;
before blood collection of a matched dog, venous blood needs to be collected regularly for hematology and serum biochemical detection, and all indexes are in a normal range;
injecting mobilizing agent (rhG-CSF) every day before collecting hematopoietic stem cells;
the injection amount of the mobilizing agent is 150 mug/kg/day, and the mobilizing agent is subcutaneously injected for 1 time every day for five consecutive days;
collecting hematopoietic stem cells for the first time on the fifth day, and if the hematopoietic stem cells collected for the first time are insufficient, collecting for the second time.
Example 3:
selecting an SPF negative greyhound dog of 2-4 years old, wherein the weight is 20-40 kg;
the conventional quintuplet vaccine is used for immunization, an indirect ELISA method is used for detection, and the antibody titer reaches over 29;
the SPF smart dog needs to be matched with a sick dog;
before blood collection of a matched dog, venous blood needs to be collected regularly for hematology and serum biochemical detection, and all indexes are in a normal range;
injecting mobilizing agent (rhG-CSF) every day before collecting hematopoietic stem cells;
the injection amount of the mobilizing agent is 150 mug/kg/day, and the mobilizing agent is subcutaneously injected for 1 time every day for five consecutive days;
collecting hematopoietic stem cells for the first time on the fifth day, and if the hematopoietic stem cells collected for the first time are insufficient, collecting for the second time.
Example 4:
selecting an SPF negative greyhound dog of 2-4 years old, wherein the weight is 20-40 kg;
the conventional quintuplet vaccine is used for immunization, an indirect ELISA method is used for detection, and the antibody titer reaches over 29;
the SPF smart dog needs to be matched with a sick dog;
before blood collection of a matched dog, venous blood needs to be collected regularly for hematology and serum biochemical detection, and all indexes are in a normal range;
injecting mobilizing agent (rhG-CSF) every day before collecting hematopoietic stem cells;
the injection amount of the mobilizing agent is 300 mug/kg/day, and the mobilizing agent is subcutaneously injected for 1 time every day for five consecutive days;
collecting hematopoietic stem cells for the first time on the fifth day, and if the hematopoietic stem cells collected for the first time are insufficient, collecting for the second time.
Example 5:
selecting an SPF negative greyhound dog of 2-4 years old, wherein the weight is 20-40 kg;
the conventional quintuplet vaccine is used for immunization, an indirect ELISA method is used for detection, and the antibody titer reaches over 29;
the SPF smart dog needs to be matched with a sick dog;
before blood collection of a matched dog, venous blood needs to be collected regularly for hematology and serum biochemical detection, and all indexes are in a normal range;
injecting mobilizing agent (rhG-CSF) every day before collecting hematopoietic stem cells;
the injection amount of the mobilizing agent is 150 mug/kg/day, and the mobilizing agent is subcutaneously injected for 1 time every day for five consecutive days;
collecting hematopoietic stem cells for the first time on the fifth day, and performing the second collection if the hematopoietic stem cells collected for the first time are insufficient;
the dogs were fed royal jelly daily before hematopoietic stem cells were harvested.
Data processing and analysis
Before injection of mobilizing agent, 20 Beagle dogs were subjected to venous blood sampling in a fasting state, and total white blood cell count (WBC), Hemoglobin (HGB), total red blood cell count (RBC), Hematocrit (HCT), mean red blood cell volume (MCV), mean red blood cell Hb (MCH), mean red blood cell Hb concentration (MCHC), and Platelets (PLT) were measured using a hemocytometer. Separating serum, and measuring biochemical indexes such as blood Glucose (GLU), urea nitrogen (BUN), total bilirubin (T-BIL), Total Cholesterol (TCH), Total Protein (TP), Albumin (ALB), aspartate Aminotransferase (AST), alanine Aminotransferase (ALT), alkaline phosphatase (ALP), etc. with a full-automatic biochemical analyzer.
TABLE 1 Beagle dog blood normative values prior to injection of mobilizing agent
Index (I) Male(s) Female
WBC/109 L-1 11.57±2.91 12.72±2.46
RBC/1012 L-1 6.64±1.94 7.23±1.74
HGB/g L-1 152.84±12.36 167.53±27.69
HCT/% 18.14±21.65 17.64±21.37
MCV/fL 65.66±12.27 58.73±12.97
MCH/pg 22.34±1.46 23.57±2.62
MCHC/g L-1 358.25±58.02 401.62±54.06
PLT/109 L-1 278.46±58.30 263.28±60.24
TABLE 2 Beagle dog blood Biochemical values before injection of mobilizing agent
Index (I) Male sex Female
GLU/mmol L-1 4.75±0.54 4.75±0.46
CRE/umol L-1 60.78±7.95 93.85±7.48
BUN/mmol L-1 1.95±0.54 2.45±0.86
T-BIL/umol L-1 7.69±2.47 6.45±2.95
TCH/mmol L-1 4.55±0.96 4.59±0.68
TP/g L-1 50.31±4.13 45.31±4.86
ALB/g L-1 27.52±2.00 24.20±4.23
ALT/U L-1 28.43±10.25 31.25±12.25
AST/U L-1 21.23±5.05 21.10±4.17
ALP/U L-1 155.56±31.25 148.48±45.03
As can be seen from the above, the routine and biochemical values of the blood of Beagle dogs before injection of the mobilizing agent are both satisfactory and suitable for collection of hematopoietic stem cells.
In summary, the embodiments of the present invention provide a method for preparing canine whole blood hematopoietic stem cells, wherein the experimental dog is an SPF dog without specific pathogens, and the blood contains a large amount of antibodies, which has great advantages in safety and nutrition, and the content of hematopoietic stem cells is greatly increased by injecting mobilizing agents and feeding royal jelly. Therefore, the prepared hematopoietic stem cells not only have good safety performance, but also contain rich antibodies and have high content.
The experimental dog is an SPF dog without special pathogens, and has great advantages in the aspect of safety performance, so that the prepared blood has good safety performance, and the SPF greyhound dog is used as a volunteer to provide hematopoietic stem cells for other sick dogs, so that the blood transfusion safety is improved, the cure rate of the sick dogs is greatly improved, and the blood transfusion system plays an important role in diagnosis and treatment of the sick dogs.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1. A preparation method of canine whole blood hematopoietic stem cells is characterized by comprising the following steps:
the method comprises the following steps: matching the type of the dog, wherein the blood type of the SPF dog is negative blood, the dog needs to be immunized by a conventional quintuplet vaccine, an indirect ELISA method is adopted for detection, and the antibody titer reaches 2 9 Above, the dog needs to be matched with a sick dog;
step two: carrying out physical examination on the dogs, and periodically collecting venous blood for hematology and serum biochemical detection before blood collection of the matched dogs, wherein each index is in a normal range;
step three: the dog hematopoietic stem cell collection is characterized in that an mobilizing agent is injected every day before the hematopoietic stem cells are collected, and the dog is fed with royal jelly before the hematopoietic stem cells are collected, so that the content of the hematopoietic stem cells is increased.
2. The method of claim 1, wherein the steps one, two and three are performed in a completely sterile closed chamber.
3. The method of claim 1, wherein the dog is an SPF dog, the SPF dog comprises a greyhound, a beagle dog, a Dubinge dog, a boxer, a German shepherd dog, the SPF dog is between 2 and 4 years of age, and the weight of the dog is between 20 and 40 kg.
4. The method for preparing canine whole blood hematopoietic stem cells according to claim 1, wherein the mobilizing agent is rhG-CSF (recombinant human granulocyte colony-stimulating factor) injection.
5. The method of claim 1, wherein the amount of the mobilizing agent injected is 150 μ g/kg/day, and the mobilizing agent is injected subcutaneously 1 time a day for five consecutive days.
6. The method according to claim 5, wherein the first hematopoietic stem cell collection is performed on the fifth day of injection of the mobilizing agent.
7. The method according to claim 6, wherein the second collection is performed if the first collection is insufficient for hematopoietic stem cells.
CN202111571481.8A 2021-12-21 2021-12-21 Preparation method of canine whole blood hematopoietic stem cells Pending CN114891746A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1826134A (en) * 2003-07-29 2006-08-30 冬姆佩股份公司 Pharmaceutical combination of G-CSF and PLGF useful for blood stem cell
CN101716167A (en) * 2009-12-08 2010-06-02 中国人民解放军军事医学科学院野战输血研究所 Use of saturated amine compound in preparation of medicaments for mobilizing peripheral blood hematopoietic stem cells
US20120269774A1 (en) * 2006-09-21 2012-10-25 Medistem Laboratories, Inc Allogeneic stem cell transplants in non-conditioned recipients
CN111778212A (en) * 2020-07-08 2020-10-16 因诺伟(北京)生物医疗科技有限公司 Preparation method and application of mobilized hematopoietic stem cell plasma exosome
CN112852734A (en) * 2021-02-24 2021-05-28 河南省银丰生物工程技术有限公司 Method for separating and identifying human peripheral blood hematopoietic stem cells

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1826134A (en) * 2003-07-29 2006-08-30 冬姆佩股份公司 Pharmaceutical combination of G-CSF and PLGF useful for blood stem cell
US20120269774A1 (en) * 2006-09-21 2012-10-25 Medistem Laboratories, Inc Allogeneic stem cell transplants in non-conditioned recipients
CN101716167A (en) * 2009-12-08 2010-06-02 中国人民解放军军事医学科学院野战输血研究所 Use of saturated amine compound in preparation of medicaments for mobilizing peripheral blood hematopoietic stem cells
CN111778212A (en) * 2020-07-08 2020-10-16 因诺伟(北京)生物医疗科技有限公司 Preparation method and application of mobilized hematopoietic stem cell plasma exosome
CN112852734A (en) * 2021-02-24 2021-05-28 河南省银丰生物工程技术有限公司 Method for separating and identifying human peripheral blood hematopoietic stem cells

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Title
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