CN108048402A - A kind of people's Pancytopenia glucocorticoid drug-resistant cell strain and its construction method and application - Google Patents

A kind of people's Pancytopenia glucocorticoid drug-resistant cell strain and its construction method and application Download PDF

Info

Publication number
CN108048402A
CN108048402A CN201810072930.6A CN201810072930A CN108048402A CN 108048402 A CN108048402 A CN 108048402A CN 201810072930 A CN201810072930 A CN 201810072930A CN 108048402 A CN108048402 A CN 108048402A
Authority
CN
China
Prior art keywords
pancytopenia
cell
people
cem
hdr
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810072930.6A
Other languages
Chinese (zh)
Other versions
CN108048402B (en
Inventor
顾玲
高举
王玉芳
张研乐
袁粒星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
West China Second University Hospital of Sichuan University
Original Assignee
West China Second University Hospital of Sichuan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by West China Second University Hospital of Sichuan University filed Critical West China Second University Hospital of Sichuan University
Priority to CN201810072930.6A priority Critical patent/CN108048402B/en
Publication of CN108048402A publication Critical patent/CN108048402A/en
Application granted granted Critical
Publication of CN108048402B publication Critical patent/CN108048402B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • 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
    • C12N5/06Animal cells or tissues; Human cells or tissues
    • C12N5/0602Vertebrate cells
    • C12N5/0693Tumour cells; Cancer cells
    • C12N5/0694Cells of blood, e.g. leukemia cells, myeloma cells
    • 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
    • A01K67/027New or modified breeds of vertebrates
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/5005Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
    • G01N33/5008Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
    • G01N33/5011Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics for testing antineoplastic activity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/5005Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
    • G01N33/5008Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
    • G01N33/5044Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics involving specific cell types
    • 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
    • A01K2207/00Modified animals
    • A01K2207/12Animals modified by administration of exogenous cells
    • 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
    • A01K2227/00Animals characterised by species
    • A01K2227/10Mammal
    • A01K2227/105Murine
    • 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
    • A01K2267/00Animals characterised by purpose
    • A01K2267/03Animal model, e.g. for test or diseases
    • A01K2267/0331Animal model for proliferative diseases

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Biotechnology (AREA)
  • Cell Biology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Wood Science & Technology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Genetics & Genomics (AREA)
  • Oncology (AREA)
  • Environmental Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The present invention provides a kind of people's Pancytopenia glucocorticoid drug-resistant cell strain CEM C7/HDR and its construction method and application, and deposit number is CCTCC NO:C2017233, the cell line is induction object with Pancytopenia glucocorticoid sensitive cells strain CEM C7 14, simulate Pancytopenia cell living environment in marrow, it obtains stablizing glucocorticoid drug resistant cell line CEM C7/HDR using 0.25 μM of dexamethasone, 1 Fiber differentiation, the half-inhibition concentration to dexamethasone is 1500 times of parental cell or more.The present invention provides new cell model to recur the research of refractory people's acute lymphoblastic leukemia and biological medicine research and development, has larger practical value in the application for exploring the drug resistant pathogenesis of people's Pancytopenia glucocorticoid, the refractory mechanism of recurrence and reversing drug resistance medicament research and development.

Description

A kind of people's Pancytopenia glucocorticoid drug-resistant cell strain and its structure Construction method and application
Technical field
The invention belongs to field of biomedicine technology, more particularly to a kind of people's Pancytopenia sugar cortical hormone Plain drug-resistant cell strain and its construction method and application.
Background technology
Acute lymphoblastic leukemia(acute lymphoblastic leukemia, ALL)The childhood of being, is most common Malignant tumour, although nearly 50 years, the prognosis of children ALL achieved rapid progress, and 5 years survival rates are carried from the 10% of 1960s Height to 90%, but still have 10~20% patient it is refractory, recurrence, poor prognosis.Due to the high incidence of ALL children below 15 years old, It is still the major reason for causing pediatric tumor death.Pancytopenia(T-ALL)It is one group and comes from T systems The malignant clone disease of lymphoid precursor cell or lymphoblast accounts for the 10~15% of children ALL, and adult T-ALL ratios are high In children, generally 20~25%, prognosis is significantly worse than B-ALL.T-ALL patient more than 70% belongs to high-risk ALL, is easy to early stage Recurrence, 5 years survival rates are 40~70%.
Glucocorticoid(Glucocorticoid, GC)Drug resistance is ALL recurrences, refractory one of the major reasons.GC can be special Different in nature inducing malignant lymphopoiesis is stagnated and inspires apoptosis, is always treatment ALL and other lymph source property malignant tumours One of choice drug, nearly all ALL Combination chemotherapies include GC.At present in chemotherapy regimen common GC be prednisone and Dexamethasone.GC sensibility is that children's ALL clinical risks degree is grouped, one of important indicator of guiding treatment and judging prognosis, GC Drug resistance is clinical treatment problem urgently to be resolved hurrily.Therefore, T-ALL GC mdr cell models are established, it will help illustrate GC drug resistances Molecule mechanism, find early stage accurate early warning GC resistant organism markers, improve leukemia risk degree parting, specify reversing drug resistance Therapy target, establish the chemotherapy regimen of personalized high-efficiency low-toxicity;The difficult point of recurrence ALL treatments refractory at present is advantageously accounted for, Children and adults ALL or even other lymph source property tumor cure rates are further improved, improve patient's long term survival quality, it is great Clinical value.
Drug screening method is the common method for establishing tumor drug resistance cell line, and particular technique is divided into two kinds, first, progressively increasing Add drug concentration, successive induction method, second is that heavy dose of impact intermittent administration method or two methods combine practicality.By above-mentioned Method has been set up the drug-resistant cell strain of kinds of tumors both at home and abroad at present, but longer the time required to obtaining drug-resistant cell strain, It needs to carry out screening pressurization to cell with drug more than June, and in experimentation, to maintain resistant characterization.CEM-C7-14 is T- ALL cell lines come from 1964 from 3 years old CCRF-CEM cell line that foundation is separated in girl's white man peripheral blood, 1977 Professor Thompson therefrom selects monoclonal, obtains the CEM-C7-14 cells to GC sensitivities, CEM-C7-14 cells are to GC height Sensitivity, 48 it is small when to the half-inhibition concentration of dexamethasone at 0.037 ± 0.003 μM, conventional medicament screening method be difficult GC drug-resistant cell strains are successfully built on the basis of CEM-C7-14 cell lines.
The content of the invention
The present invention provides a kind of people's Pancytopenia glucocorticoid drug-resistant cell strain, Cell Names It is people Pancytopenia cell line CEM-C7/HDR, deposit number is:CCTCC NO:C2017233, preservation day Phase:On October 25th, 2017, depositary institution:China typical culture collection center.
The present invention also provides people's Pancytopenia glucocorticoid drug-resistant cell strain CEM-C7/HDR Construction method:Its process is, first by people's Pancytopenia cell line CEM-C7-14 of exponential phase by 1~ 3×104A/ml inoculations, it is 1~3 × 10 to be placed in culture to cell density under low-oxygen environment5A/ml(About 4 days time)Afterwards once Property 0.25 μM of dexamethasone of addition, then proceed to culture to cell density be 2~10 × 105A/ml(About 4 weeks time), so It is placed under normoxic condition and expands culture, so as to obtain people's Pancytopenia glucocorticoid drug-resistant cell strain CEM-C7/HDR。
In the above method, the hypoxia condition is that simulation Pancytopenia cell is survived micro-loop in marrow Border, the normoxic condition can simulate the growing environment that Pancytopenia cell is released into peripheral blood from marrow.
Specific step is as follows:
(1)By people's Pancytopenia cell line CEM-C7-14 cellar cultures in the RPMI containing 10% hyclone In 1640 complete mediums, 37 DEG C, 5%CO are placed in2, saturated humidity, 21%O2Normal oxygen incubator culture;
(2)Take step(1)It is middle to cultivate to the CEM-C7-14 cells of exponential phase, by 1~3 × 104A/ml is inoculated with into 6 holes Plate is placed in simulation Pancytopenia cell and survives in marrow microenvironment(37℃、5%CO2, saturated humidity, 1%O2) Hypoxemia incubator culture 4 days after, add in 0.25 μM of dexamethasone, continue culture 4 weeks, it is spare;
(3)By step(2)The cell that culture obtains is placed in simulation Pancytopenia cell and is released into periphery from marrow The growing environment of blood(37℃、5% CO2, saturated humidity, 21%O2)Lower culture, when cell Proliferation to 1 × 106A/ml, it is conventional to pass In generation, changes liquid, obtains people's Pancytopenia glucocorticoid drug-resistant cell strain CEM-C7/HDR.
People's Pancytopenia glucocorticoid drug-resistant cell strain CEM-C7/HDR that the present invention is obtained has Following biological characteristics:
CEM-C7/HDR cells are as parental cell, the suspension growth in 1640 complete mediums of RPMI, based on circle, With pleomorphism, in vitro culture well-grown, by 2 × 105A/ml density inoculation, passage in 2~3 days are once, continuous in vitro Culture was more than 8 months, and more than 90 generations, population doublings were more than 280 generations, stablized multiplication, in good condition, Resistance index is more than for passage 1500.Character is constant after liquid nitrogen or Cryopreservation, recovery, keeps good resistant characterization.
The totally 5 weeks time of cell drug-resistant cell strain from handling to obtaining, cell height drug resistance, drug sensitivity test confirm CEM-C7/HDR cells are more than 1500 to the Resistance index of dexamethasone.For population doublings at 10 generation, cell fills in rice over the ground The Resistance index of pine reaches more than 3000, slightly falls after rise afterwards, and to after 100 generations, Resistance index stabilization is 1500 ~ 2500, no Drug screening need to be used again, and resistant characterization is stablized.
The growth curve of CEM-C7/HDR cells is drawn using MTT and Trypan Blue cell counting, calculates cell times When the increasing time is 18~20 small, multiplication rate is stablized, it is seen that split coil method.
The CEM-C7/HDR cell cycles are detected using PI decoration methods, it is seen that CEM-C7/HDR cells and its parental cell CEM- Each phase distribution of C7-14 cells is basically identical.
Being tested using methylcellulose Semi-solid cell culture confirms that CEM-C7/HDR cell lines have high semisolid Clone formation Ability.
Transcript profile sequencing finds that CEM-C7/HDR cells have 388 gene expression up-regulations, 269 bases compared to parental cell Because expression is lowered.
CEM-C7/HDR cell inoculation NOD/SCID mouse have high oncogenicity, and tumor cells and the CEM- of in vitro culture C7/HDR cell deriveds are consistent..
It is same that STR detections and Immunophenotyping, which analyze confirmation CEM-C7/HDR cells with parental cell CEM-C7-14, Source.CEM-C7/HDR cells and CEM-C7-14 cell STR testing results are as shown in table 1 below, as seen from the results in Table 1, CEM- C7/HDR is consistent with CEM-C7-14 cell deriveds.
Table 1:CEM-C7/HDR cells and CEM-C7-14 cell STR testing results
People's Pancytopenia cell line CEM-C7/HDR that the present invention is built has to be applied below:
(1)People Pancytopenia cell line CEM-C7/HDR is establishing the acute T Lymphocyte Glycogen Determinations cortical hormone of humanization Application in plain leukaemia animal model, cell line CEM-C7/HDR has high oncogenicity, by CEM-C7/HDR cell inoculations NOD/SCID mouse subcutaneously can touch lump in 10 days, and lump mushrooms out after 15 days, tumorigenesis rate 100%, and tumor cells It is consistent with the CEM-C7/HDR cell deriveds of in vitro culture.
(2)People Pancytopenia cell line CEM-C7/HDR is resistance in screening or assessment treatment glucocorticoid Medicine Pancytopenia drug and application in glucocorticoid medicine is reversed, by CEM-C7/HDR cells Different chemotherapeutics, the changes such as observation growth and proliferation of cell, death, cycle are added in culture medium, and can clear and definite drug reverse GC drug resistances obtain preliminary effective drug candidate, then drug candidate are used for above-mentioned Pancytopenia animal mould Type detects the internal effect of drug, after ordinary circumstance, time-to-live, tumor size change and the drug effect of observing animal In body situations such as apoptosis, necrosis and the change of other associated signal paths, so as to carry out curative effect evaluation and machine to drug candidate System analysis.
(3)People Pancytopenia cell line CEM-C7/HDR is in the research acute T lymphs of glucocorticoid drug resistance Application in chronic myeloid leukemia mechanism, cytomorphology, Biological characteristics, using light microscopic, electron microscopic observation cellular morphology knot Structure and ultra microstructure compare the difference of CEM-C7/HDR and its parental cell CEM-C7-14 forms and Biological characteristics, using egg The method of Bai Zuxue, full-length genome and metabolism group analyze CEM-C7/HDR and CEM-C7-14 cells, it is intended to seek The discrepant Disease-causing gene of tool, albumen or metabolite are looked for, so as to the drug resistant pathogenesis of further investigated glucocorticoid.
(4)People Pancytopenia cell line CEM-C7/HDR is immunized establishing acute lymphoblastic leukemia Learn and hematopoieticmicroenviron-ment research platform in application, NK cells, CAR-T or other immune antiboidies, ligand etc. are applied to It is thin to sugared cortex drug-resistant leukemia to inquire into immunization therapy for CEM-C7/HDR and CEM-C7-14 cells and its humanized animal's model Intracellular growth, immunity of organism and leukaemia development and the influence lapsed to;The dimensional culture environment of simulation marrow hemopoiesis tabernacle is established, is compared The influence that different pharmaceutical including immunotherapy is treated and lapsed to glucocorticoid drug resistance acute lymphoblastic leukemia.
The invention has the advantages that:
1st, people's Pancytopenia cell line CEM-C7/HDR of the invention is white to recur refractory people's acute lymphoblastic The research of blood disease and biological medicine research and development provide new cell model, are exploring people's Pancytopenia sugar cortical hormone To hold out broad prospects in the application of the drug resistant pathogenesis of element, the refractory mechanism of recurrence and reversing drug resistance medicament research and development with it is larger Practical value.
2nd, existing drug screening method structure drug-resistant cell strain is, it is necessary to be stepped up drug concentration, carry out successive induction or Heavy dose impact intermittent administration or two methods combine, the above method is more difficult to the extremely sensitive cell of drug filter out it is resistance to Medicine strain, and the more time is needed to carry out drug domestication to cell.People's Pancytopenia cell line CEM- of the present invention The construction method of C7/HDR is impacted after using hypoxia condition culture with dexamethasone is heavy dose of, simulates clinical leukemia cell drug-resistance Forming process, experimentation is simple, and modeling conditional stability can obtain drug-resistant cell strain, without using drug again in a short time Screening pressurization is carried out to cell, modeling cost can be significantly reduced;Meanwhile this method can to the extremely sensitive cell modeling of drug, Because under hypoxia condition, malignant cell to Treated with Chemotherapeutic Drugs object compared with normoxic condition when be more resistant to, the method can be used extensively In various malignant cells, obtain to the drug resistance of different pharmaceutical or multi-medicament is screened simultaneously, obtain multidrug resistance Cell line.
3rd, Resistance index is commonly used in the judgement of drug resistance of tumor cell degree(resistant index, RI)It represents, RI is Mdr cell half-inhibition concentration(50% inhibitory concentration, IC50) with the ratio of parental cell IC50. Drug resistance is divided into minuent by Snow etc. by the height of Resistance index(<5), moderate(5-15), height(> 15).The present invention is established Drug-resistant cell strain CEM-C7/HDR its RI be 1500~2500, i.e., be to the IC50 of dexamethasone parental cell 1500~ 2500 times.
Description of the drawings
Fig. 1 is CEM-C7/HDR and CEM-C7-14 cell observation figures under inverted phase contrast microscope(×400);
Fig. 2 is the wooden Sa colored graph of CEM-C7/HDR and CEM-C7-14 cells Switzerland-Ji under ordinary optical microscope(×1000);
Fig. 3 is half-inhibition concentration when dexamethasone is small to CEM-C7/HDR cytosiies 48(IC50)And its Resistance index (RI), wherein, A:Half-inhibition concentration when dexamethasone is small to CEM-C7/HDR cytosiies 48(IC50);B:CEM-C7/ HDR is to the Resistance index of dexamethasone;PDL:Cell population doublings number(population doubling level);
Fig. 4 is CEM-C7/HDR and CEM-C7-14 cell growth curves;
Fig. 5 schemes for flow cytometer detection CEM-C7/HDR and the CEM-C7-14 cell cycle, wherein, A:CEM-C7-14;B:CEM-C7/ HDR;
Fig. 6 is transcription group sequencing detection CEM-C7/HDR and CEM-C7-14 cellular gene expression differences, and wherein X-axis represents A It is worth (the transformed Average expression levels of log2), Y-axis represents M values (the transformed fold differences of log2);
Fig. 7 CEM-C7/HDR cell NOD/SCID mouse subcutaneous tumor forms lab diagram.
People Pancytopenia cell line CEM-C7/HDR, deposit number are:CCTCC NO:C2017233 is protected Hide the date:On October 25th, 2017, depositary institution:China typical culture collection center preserves unit address:Hubei Province is military No. 299 Wuhan Universitys of Han Shi Wuchang Districts Bayi Road are in the school(The first attached primary school of Wuhan University opposite), Wuhan University's collection.
Specific embodiment
The present invention is in conjunction with specific embodiments described further invention, but the implementation of the present invention is not limited to that.
Method therefor is conventional method to following embodiments unless otherwise specified
Embodiment 1
The structure of people's Pancytopenia glucocorticoid drug-resistant cell strain CEM-C7/HDR of dexamethasone rapid induction Construction method:
1. cell culture:Recovery people's Pancytopenia cell line CEM-C7-14 cells, are suspended in containing 10% tire ox Serum(Thermo companies)1640 cell culture mediums of RPMI(Gibco companies)In, 37 DEG C, 5%CO2, saturated humidity, 21%O2 Normal oxygen incubator culture.
2. screening and culturing condition:The CEM-C7-14 cells of exponential phase in step 1 are taken, by 2 × 104A/ml inoculations Enter 6 orifice plates, 2ml/ holes are respectively placed in 37 DEG C, 5%CO2, saturated humidity, 21%O2Normal oxygen incubator(Normal oxygen group)And 37 DEG C, 5% CO2, saturated humidity, 1%O2Hypoxemia oxygen incubator(Hypoxia group)Culture, after 4 days, 0.25 μM of ground is added in normal oxygen and hypoxia group Grouping culture using 3 holes of not dosing as control, is continued in Sai meter Song, each 3 hole.
On the addition of dexamethasone, the present embodiment be separately added into preliminary experiment 0.01 μM, 0.05 μM, 0.1 μM, 0.25 μM, 0.5 μM and 1 μM dexamethasone, it turns out that when less than 0.25 μM of concentration, cell can be effective in low-oxygen environment Dexamethasone is resistant to, cell more difficult recovery multiplication capacity after heavy dose is impacted during more than 0.25 μM, therefore, the present invention uses The dexamethasone of 0.25 μM of dosage.
3. build resistant models:After dosing 4 days, normal oxygen group complete cell death, hypoxia group after dexamethasone processing exist Still there is survivaling cell after dexamethasone processing, continue hypoxemia culture, the normal oxygen culture of 4 weeks postpositions, when cell Proliferation to 1 × 106A/ Ml, routine passage change liquid, and half-inhibition concentration of the cell to dexamethasone is detected after 1 week, and calculate its Resistance index as 3200 ± 29, this cell is named as CEM-C7/HDR.Monoclonal is chosen in methylcellulose culture, calculates cell doubling time, and detects Cell cycle.
4. drug resistance tracks:By CEM-C7/HDR and its monoclonal cell, cellar culture, passage monthly weigh in normal oxygen Half-inhibition concentration when reinspection survey cell is small to effects of dexamethasone 48, and Resistance index is calculated, the results show that in group times After increasing 100 generation of number, CEM-C7/HDR and its monoclonal cell are to 60~70 μM of the half-inhibition concentration of dexamethasone, drug resistance Exponential Stability is 1500~2500.
5. cell stablizes growth, does not influence its resistant characterization and biological characteristics through cryopreservation resuscitation repeatedly.
Embodiment 2
The growth of people's Pancytopenia glucocorticoid drug-resistant cell strain CEM-C7/HDR, biological characteristics and resistance to Medicine CHARACTERISTICS IDENTIFICATION
(1)Morphological observation:Take the logarithm growth period CEM-C7/HDR cells and its parental cell CEM-C7-14 in fall Micro- Microscopic observation living cells form is put, the results are shown in Figure 1, sees CEM-C7/HDR cells and its parental cell CEM-C7-14 Form is similar, equal suspension growth, based on circle, it is seen that pleomorphism cell, size are uneven.
Take the logarithm the CEM-C7/HDR cells in growth period and its parental cell CEM-C7-14, and routine smear is fixed, and Rui Shi- Giemsa staining, in just putting micro- Microscopic observation, the results are shown in Figure 2, and CEM-C7/HDR cells and its parent CEM-C7-14 are thin Born of the same parents' size, morphosis are similar.
(2)Mtt assay detects drug resistance of the cell to glucocorticoid:Be collected by centrifugation exponential phase CEM-C7/HDR and CEM-C7-14 cells, it is 2 × 10 to adjust cell concentration respectively5A cell/ml, is inoculated in 96 orifice plates, per 100 μ l of hole, every group 3 multiple holes;The dexamethasone of increasing concen-trations is separately added into CEM-C7/HDR and CEM-C7-14 cells, wherein CEM-C7-14 is thin Born of the same parents add in 0.0001~1 μM of dexamethasone, are incremented by by 10 times, and CEM-C7/HDR cells add in 0.1~1000 μM of dexamethasone, It is incremented by by 10 times.Blank control and not dosing control group are set, when processing 48 is small, add in 10 μ l/ holes of 5mg/ml MTT, fully Mixing, 37 DEG C be incubated 4 it is small when after add in the SDS of acidifying(10%SDS HCl containing 0.01M), 100 μ l/hole, mixing.37 DEG C incubate It educates overnight, the absorbance of secondary daily multi-function microplate reader detection 570nm wavelength(OD).According to blank group, control group, fill in rice The OD averages of pine group calculate the survival rate of cell.Cell survival rate=(OD dexamethasone average-OD blank averages)/(OD is compareed Average-OD blank averages)×100%.Curve is drawn according to time, drug concentration, cell survival rate and calculates the suppression of dexamethasone half Concentration processed.CEM-C7/HDR cells are CEM-C7/HDR cells half-inhibition concentration and parent to the Resistance index of glucocorticoid The ratio of cell CEM-C7-14 half-inhibition concentrations.The results are shown in Figure 3, and CEM-C7/HDR cells are in population doublings 10 Dai Shi, cell are up to 128 μM to the half-inhibition concentration of dexamethasone, and Resistance index is up to 3200, to after 100 generations, cell To the half-inhibition concentration stabilization of dexamethasone at 60~70 μM, Resistance index stabilization is 1500~2500.
(3)Growth curve and doubling time measure:The CEM-C7/HDR and CEM-C7-14 that exponential phase is collected by centrifugation are thin Born of the same parents, adjustment cell concentration are 1 × 105A cell/ml, is inoculated in 6 orifice plates, puts 37 DEG C, 5%CO2、21%O27 are cultivated in incubator My god, Trypan Blue living cell counting is used daily, and cell proliferative conditions are detected with mtt assay, with the accurate of clear and definite cell count Property, cell suspension is added in 96 orifice plates, and per 100 μ l of hole, every group of 3 multiple holes set blank control, add in 5mg/ml MTT(Sigma Company)10 μ l/ holes, abundant mixing, 37 DEG C be incubated 4 it is small when after add in the SDS of acidifying(10%SDS HCl containing 0.01M), 100 μ l / hole, mixing.37 DEG C of overnight incubations, secondary daily multi-function microplate reader survey the absorbance of 570nm wavelength(OD).Using the time as horizontal stroke Coordinate, cell number are ordinate, draw cell growth curve, as shown in figure 4, CEM-C7/HDR cells and its parental cell CEM- The growth of C7-14 cells is basically identical, when the doubling time is 18~20 small.
(4)PI decoration methods compare the cell cycle status of CEM-C7/HDR cells and its parental cell CEM-C7-14, as a result As shown in figure 5, CEM-C7/HDR cells and each phase distribution of its parental cell CEM-C7-14 cells are basically identical.
(6)STR detections confirm CEM-C7/HDR cells and its parental cell CEM-C7-14 is same source.
(7)Flow cytometer detection cellular immunity parting confirms that CEM-C7/HDR cells and its parental cell CEM-C7-14 are same Source expresses CD3, CD4, CD5 and CD7, does not express CD8, CD34 and HLA-DR.
(8)Transcript profile is sequenced, and the results are shown in Figure 6, finds CEM-C7/HDR cells compared to parental cell CEM-C7-14 There are 388 gene expression up-regulations, 269 down regulation of gene expression.
Embodiment 3
Establish the acute T lymphocytes glucocorticoid leukaemia animal model of humanization
NOD/SCID mouse are tested into knurl:CEM-C7/HDR cells in exponential phase are pressed 5 × 106/ 100 μ l/ only, connect Kind is in female Balb/c (nu/nu) mouse(6 week old, 19~21g of weight)Apterium is subcutaneous;The next day observe inoculation position tumour Generation situation.The results are shown in Figure 7, and inoculation can touch grain of rice size lump after 10 days in nude mice by subcutaneous, tumour after being inoculated with 15 days It mushrooms out, every 3 days measurement Tumor sizes, it is seen that lump volume was from 762 mm of the 15th day3Grow into the 3527 of the 21st day mm3.Take tumor mass that cell suspension is made after 15 days, immunophenotyping and STR detections confirm that tumor mass separation cell and CEM-C7/HDR are thin Born of the same parents are same source.

Claims (10)

1. a kind of people's Pancytopenia glucocorticoid drug-resistant cell strain, Cell Name is that the acute T lymphs of people are thin Born of the same parents leukemia cell line CEM-C7/HDR, deposit number CCTCCNO:C2017233.
2. the construction method of people's Pancytopenia cell line CEM-C7/HDR, feature described in a kind of claim 1 It is:It is 1 that people's Pancytopenia cell line CEM-C7-14 first is placed in culture to cell density under hypoxia condition ~3 × 105After a/ml, disposably add in 0.25 μM of dexamethasone, then proceed to hypoxemia culture to cell density for 2~10 × 105A/ml is finally placed under normoxic condition and expands culture, resistance to so as to obtain people's Pancytopenia glucocorticoid Medicine cell line CEM-C7/HDR.
3. the construction method of people's Pancytopenia cell line CEM-C7/HDR according to claim 2, special Sign is:The hypoxia condition refers to that simulate Pancytopenia cell survives microenvironment in marrow, the normal oxygen Condition refers to simulate the growing environment that Pancytopenia cell is released into peripheral blood from marrow.
4. the construction method of people's Pancytopenia cell line CEM-C7/HDR according to claim 2, special Sign is:People's Pancytopenia cell line CEM-C7-14 is the CEM-C7-14 cells of exponential phase, is pressed 1~3 × 104A/ml inoculations are placed in hypoxia condition culture.
5. the construction method of people's Pancytopenia cell line CEM-C7/HDR according to claim 3, special Sign is:Existence microenvironment of the simulation Pancytopenia cell in marrow refers to 37 DEG C, 5%CO2, saturation Humidity, 1%O2Environment.
6. the construction method of people's Pancytopenia cell line CEM-C7/HDR according to claim 3, special Sign is:It is described simulation Pancytopenia cell from marrow be released into peripheral blood growing environment refer to 37 DEG C, 5% CO2, saturated humidity, 21%O2Environment.
7. people Pancytopenia cell line CEM-C7/HDR is establishing the acute T leaching of humanization glucocorticoid drug resistance Application in bar chronic myeloid leukemia animal model.
8. people Pancytopenia cell line CEM-C7/HDR is acute in screening or assessment treatment glucocorticoid drug resistance Application in T lymphocytic leukemia drugs.
9. people Pancytopenia cell line CEM-C7/HDR is in the research acute T lymphocytes of glucocorticoid drug resistance Application in leukaemia mechanism, cytomorphology, Biological characteristics.
10. people Pancytopenia cell line CEM-C7/HDR establish acute lymphoblastic leukemia immunology and Application in hematopoieticmicroenviron-ment research platform.
CN201810072930.6A 2018-01-25 2018-01-25 A kind of people's Pancytopenia glucocorticoid drug-resistant cell strain and its construction method and application Active CN108048402B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810072930.6A CN108048402B (en) 2018-01-25 2018-01-25 A kind of people's Pancytopenia glucocorticoid drug-resistant cell strain and its construction method and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810072930.6A CN108048402B (en) 2018-01-25 2018-01-25 A kind of people's Pancytopenia glucocorticoid drug-resistant cell strain and its construction method and application

Publications (2)

Publication Number Publication Date
CN108048402A true CN108048402A (en) 2018-05-18
CN108048402B CN108048402B (en) 2019-01-29

Family

ID=62124803

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810072930.6A Active CN108048402B (en) 2018-01-25 2018-01-25 A kind of people's Pancytopenia glucocorticoid drug-resistant cell strain and its construction method and application

Country Status (1)

Country Link
CN (1) CN108048402B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112877290A (en) * 2021-03-04 2021-06-01 浙江大学 Human T lymphoblastic leukemia/lymphoma cell strain and application thereof
CN113046319A (en) * 2021-03-18 2021-06-29 浙江大学 Human acute myeloid leukemia cell strain and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104004715A (en) * 2014-05-21 2014-08-27 兰州大学 Human leukemia HL-60 cell drug-resistance cell line HL-60/RS cell and preparation method thereof
CN107233571A (en) * 2017-06-21 2017-10-10 中国人民解放军第三军医大学第附属医院 The application of ICBP90 antibody and its expression inhibiting agent in the medicine for promoting glucocorticoid treatment effect is prepared

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104004715A (en) * 2014-05-21 2014-08-27 兰州大学 Human leukemia HL-60 cell drug-resistance cell line HL-60/RS cell and preparation method thereof
CN107233571A (en) * 2017-06-21 2017-10-10 中国人民解放军第三军医大学第附属医院 The application of ICBP90 antibody and its expression inhibiting agent in the medicine for promoting glucocorticoid treatment effect is prepared

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AH BEESLEY,ET AL.: "Glucocorticoid resistance in T-lineage acute lymphoblastic leukaemia is associated with a proliferative metabolism", 《MOLECULAR DIAGNOSTICS》 *
JOHN A. MARWICK,ET AL.: "Oxygen levels determine the ability of glucocorticoids to influence neutrophil survival in inflammatory environments", 《JOURNAL OF LEUKOCYTE BIOLOGY》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112877290A (en) * 2021-03-04 2021-06-01 浙江大学 Human T lymphoblastic leukemia/lymphoma cell strain and application thereof
CN112877290B (en) * 2021-03-04 2021-11-30 浙江大学 Human T lymphoblastic leukemia/lymphoma cell strain and application thereof
CN113046319A (en) * 2021-03-18 2021-06-29 浙江大学 Human acute myeloid leukemia cell strain and application thereof
CN113046319B (en) * 2021-03-18 2022-11-08 浙江大学 Human acute myeloid leukemia cell strain and application thereof

Also Published As

Publication number Publication date
CN108048402B (en) 2019-01-29

Similar Documents

Publication Publication Date Title
CN108315302B (en) A kind of people&#39;s B-lineage Acute Lymphocyte Leukemia glucocorticoid drug-resistant cell strain and its construction method and application
CN105848793B (en) Material selectivity is delivered to cell
CN103756967B (en) Application of the monoclonal antibody coupling immunomagnetic beads of anti-HLA-G in tumour cell sorting
CN104894065B (en) A kind of cultural method of NK cell culture mediums and NK cells
CN108048402B (en) A kind of people&#39;s Pancytopenia glucocorticoid drug-resistant cell strain and its construction method and application
CN105924533A (en) ROR1 specific chimeric antigen receptor and application thereof
CN105085677B (en) Anti-vegf R2 source of people nano antibody NTV1 and its preparation method and application
Chen et al. Cetuximab intensifies the ADCC activity of adoptive NK cells in a nude mouse colorectal cancer xenograft model
CN106086078B (en) A kind of CAR T cell toxicities indicate carrier
Puntigam et al. Immune checkpoint expression on immune cells of HNSCC patients and modulation by chemo-and immunotherapy
Ao et al. Evaluation of cancer immunotherapy using mini-tumor chips
CN107064085A (en) Test Procedur of Splenic Natural Killer Cell Activity
CN106222141A (en) NK cell culture fluid and cell culture processes
Gallo et al. A new bioassay platform design for the discovery of small molecules with anticancer immunotherapeutic activity
CN108997478A (en) A kind of polypeptide and its application with immunologic test point antagonistic activity
WO2024001509A1 (en) Niraparib-resistant human ovarian cancer cell line and use thereof
CN109097334A (en) Ph+ B-lineage Acute Lymphocyte Leukemia KQBL-84 cell strain and its construction method and application
CN104774756A (en) Chip and method for microfluidic drug screening on basis of SERS (surface-enhanced Raman scattering) detection technology
CN104181290B (en) A kind of analysis method for evaluating thrombopoietin receptor stimulating agent external activity
Wu et al. Cordycepin inhibits growth and metastasis formation of MDA-MB-231 xenografts in nude mice by modulating the hedgehog pathway
CN108588019B (en) A kind of external evoked naive B cell is divided into the method and its condition of culture of modulability B cell
CN108795868A (en) A kind of Human colorectal carcinoma Cetuximab drug-resistant cell strain and its application
Gruijs et al. NK cell-dependent antibody-mediated immunotherapy is improved in vitro and in vivo when combined with agonists for Toll-like receptor 2 in head and neck cancer models
Wang et al. Chemokine receptors CCR6 and PD1 blocking scFv E27 enhances anti-EGFR CAR-T therapeutic efficacy in a preclinical model of human non-small cell lung carcinoma
WO2022183749A1 (en) Human t-lymphoblastic leukaemia/lymphoma cell strain and application thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Gu Ling

Inventor after: Gao Ju

Inventor after: Wang Yufang

Inventor after: Zhang Yanle

Inventor after: Yuan Lixing

Inventor before: Gu Ling

Inventor before: Gao Ju

Inventor before: Wang Yufang

Inventor before: Zhang Yanle

Inventor before: Yuan Lixing

GR01 Patent grant
GR01 Patent grant