CN106011068A - Esophageal cancer cell line and application thereof - Google Patents
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Abstract
The invention discloses an esophageal cancer cell line and application thereof. The esophageal cancer cell line is named as a human esophageal squamous cancer cell line ZEC-056 and collected under CCTCC NO: C201691. The human esophageal squamous cancer cell line ZEC-056 comes from tumor tissue of a Chinese patient with esophageal cancer after excision, STR detection results show that the human esophageal squamous cancer cell line ZEC-056 is unique, no cross contamination with other cells occurs in the process of primary culture, clone formation and tumorigenicity is high, and the esophageal cancer cell line can serve as an ideal cell line in the application aspects of esophageal cancer studying, esophageal cancer detection kit development and drug screening.
Description
Technical field
The present invention relates to biology and oncology's technical field, particularly relate to a kind of esophageal carcinoma cell line and application thereof.
Background technology
The esophageal carcinoma is common malignant tumor of digestive tract.The whole world there are about 300,000 people every year and dies from the esophageal carcinoma.Its sickness rate and death
Rate various countries are widely different.China is one of Esophageal Cancer area in the world, and every annual is died of illness about 150,000 people.Man is more than female,
Age of onset is many more than 40 years old.The typical symptom of the esophageal carcinoma is Progressive symmetric erythrokeratodermia acataposis, before this food of difficult dry pharynx, is then
Semiliquid diet, last water and saliva can not be swallowed.In China, Incidence of esophageal cancer occupies general tumour the 5th, and it is dead
Rate occupies the 4th.Two kinds of Main Subtypes of the esophageal carcinoma: scale cancer and adenocarcinoma, wherein scale cancer accounts for 90%.
Patient with esophageal carcinoma clinical manifestation is as follows:
In early days: symptom is the most inconspicuous, discomfort in various degree but may be had to feel, including swallowing food when swallowing thick and stiff food
Choking feeling, burns sample, acupuncture sample or tractive friction sample pain after breastbone.Food is by slow, and has stagnation sense or foreign body sensation.
Stalk is choked to stagnate to feel and is disappeared usually through alleviating after swallowing water.During symptom light time weight, make slow progress.
Middle and advanced stage: the typical symptom of the esophageal carcinoma is Progressive symmetric erythrokeratodermia acataposis, the food of difficult dry pharynx, was semiliquid diet then before this,
Last water and saliva can not be swallowed.Often tell mucoid expectorant, for the saliva swallowed and the secretions of esophagus.Patient gradually becomes thin,
Dehydration, unable.Continuing chest pain or backache is expressed as symptom in late period, cancer has been invaded and has been organized outside esophagus.When cancerous protuberance is blocked caused
Inflammation edema transient remission, or after part cancerous protuberance comes off, obstruction can temporarily alleviate, and constant error thinks that sb.'s illness took a favorable turn.If cancerous protuberance
Invade recurrent laryngeal nerve, may occur in which hoarseness;If compressing cervical sympathetic ganglia, Horner syndrome can be produced;If intrusion trachea,
Bronchus, can form esophagus, trachea or bronchial fistula, acutely chokes and coughs, and respiratory system sense occurs when there is swallowing water or food
Dye.Cachectic states finally occurs.If there being the Organ relative weight such as liver, brain, may occur in which the states such as jaundice, seroperitoneum, stupor.
Treatment main point of surgical intervention, radiotherapy, chemotherapy etc., in recent years, reached based on the Comprehensive Treatment of operation
Arrive bottleneck, and Chemotherapy in Esophageal Cancer slower development, there is no clear and definite conclusion and standard scheme.
For understanding the pathogeny of esophageal squamous cell carcinoma and medicine and the research of other Therapeutic Method in depth, it is necessary to set up suitable diagnostic cast
Type.The most conventional esophageal cancer cell strain is mainly derived from Japan, including KYSE series and TE series.These are thin
Born of the same parents are to pass in vitro for a long time, and some have lost the characteristic of primary tumor tissues.Because race difference, living habit is different,
The reasons such as environmental factors, these cells containing sequences represent the type of China's esophageal carcinoma and the query that feature existence is the biggest.Domestic minority is real
Testing the cell strain set up room less, the widely used cell strain of part is polluted by other cells so that the research of the esophageal carcinoma
Can not carry out in a deep going way.And, along with the accurate medical science of tumor treatment concept go deep into clinical practice, it is provided that the more esophageal carcinoma is thin
Born of the same parents' strain contributes to research and development and the application of targeted drug.Set up the esophageal cancer cell strain in Chinese source, for the morbidity machine of esophageal squamous cell carcinoma
System and treatment provide new model, have important theory and actual application and are worth.
Summary of the invention
The present invention is directed to the current domestic esophageal cancer cell strain lacking Chinese source, and provide one and derive from Chinese food
Pipe cancerous cell line.
From an example patient with esophageal carcinoma, (patient is 63 years old male to the present inventor's esophageal squamous cell carcinoma cell line ZEC-056, and tumor is positioned at food
Pipe stage casing, postoperative pathological breaks up squamous cell carcinoma, TNM T4aN0M0 by stages, phase clinical stages 3A in showing.) operation
Tumor tissues sampling after excision, through original cuiture and after building and being tied to form merit, named Human esophageal squamous cell cancer cell line ZEC-056, in
On May 11st, 2016 is preserved in the China typical culture collection center being positioned at Wuhan, China Wuhan University, and preserving number is:
CCTCC NO:C201691.
The present inventor's esophageal squamous cell carcinoma cell line ZEC-056 cell growth vigorous, clear background, impurity is rare, cell be flat not
Regular polygon, cell is the most closely coupled, meets the feature of epithelioid cell.After adherent, growth is very fast, has good body
Outer cultivation amplification property.Chromosome number is distributed between 38~49 mostly, and mode is 44, meets the feature of malignant tumor.
The cells such as the STR sequencing result of the present inventor's esophageal squamous cell carcinoma cell line ZEC-056 and ATCC, DSMZ preserve the number in storehouse
Carry out inquiry contrast according to storehouse, do not find identical STR testing result, it was demonstrated that it is unique, and does not sends out during original cuiture
The raw cross-contamination with other cells.Immunohistochemical experiment finds, Human esophageal squamous cell cancer cell line ZEC-056 cell is CK5/6 sun
Property, CK14 is positive, and p63 is positive, and CgA is negative, and Sy is negative and CD56 is negative.
Colony formation finds, the cloning efficiency of Human esophageal squamous cell cancer cell line ZEC-056 cell and inoculum density have relation,
Inoculum density is that Cell clonality during 4500 cells is stronger.
Nude mice (nude mouse) becomes tumor experimental result to find, Human esophageal squamous cell cancer cell line ZEC-056 Tumor formation is stronger.
Invention further provides the daughter cell of described esophageal carcinoma cell line.Described daughter cell remains parental generation substantially or all
The characteristic of cell.
Invention further provides described esophageal cancer cell and tie up to the application in the cell model as esophageal carcinoma genesis mechanism research.
Owing to the present inventor's esophageal squamous cell carcinoma cell line ZEC-056 is originated foundation from Chinese, and to build be that the time is shorter, and character is stable,
Using this esophageal carcinoma cell line as study model, have very great help for understanding Chinese primary esophageal carcinogenesis mechanism.
Present invention also offers described esophageal cancer cell to tie up to set up the application in mammal esophageal carcinoma model.Described suckling
Animal is nude mouse or nude rat.By the described Human esophageal squamous cell cancer cell line ZEC-056 cell of certain cell quantity is inoculated in
The positions such as subcutaneous, the liver of nude mouse or nude rat, abdominal cavity or tail vein, it is thus achieved that the animal model of the esophageal carcinoma.
Present invention also offers described esophageal cancer cell to tie up to extract the application in esophageal carcinoma specific tumour mark.By with
Normal esophageal cells and other kinds of cancer cell compare research, it appeared that the molecular marker of the esophageal carcinoma, for this
Molecular marker can carry out the application of the aspects such as follow-up disease detection and drug development.
Present invention also offers described esophageal cancer cell and tie up to the application in screening or assessment treatment esophageal carcinoma medicine.First, logical
Crossing interpolation different pharmaceutical in described Human esophageal squamous cell cancer cell line ZEC-056 culture medium, observation of cell state changes, it is thus achieved that preliminary
Effective drug candidate.Then, drug candidate is administered to the animal model of the above-mentioned esophageal carcinoma, observes and non-dispenser treated animal
Survival period, tumor size, transfer case etc., screening obtains the medicine of the potential treatment esophageal carcinoma.
Present invention also offers described esophageal cancer cell to tie up to develop the application in esophageal carcinoma detection kit.The discovery esophageal carcinoma is special
After the tumor markers of the opposite sex, the detection esophageal carcinoma can be developed according to this tumor markers and occur or the detection kit of development.
Tumor group after the excision of the patient with esophageal carcinoma that the present inventor's esophageal squamous cell carcinoma cell line ZEC-056 comes from an example China
Knitting, STR testing result proves that it is unique, and the cross-contamination with other cells does not occurs during original cuiture, gram
Grand formation is strong with Tumor formation, can be as aspect application such as esophageal carcinoma research and the exploitation of esophageal carcinoma detection kit, drug screenings
Ideal cell line.
Accompanying drawing explanation
Fig. 1 is the Morphology observation figure of Human esophageal squamous cell cancer cell line ZEC-056 cell;
Fig. 2 is the cell growth curve figure of Human esophageal squamous cell cancer cell line ZEC-056;
Fig. 3 is the karyotype scattergram of Human esophageal squamous cell cancer cell line ZEC-056 cell;
Fig. 4 is STR analysis result figure, and wherein, figure A~F is the most homoallelic result figure respectively;
Fig. 5 is Human esophageal squamous cell cancer cell line ZEC-056 cellular immunization CYTOCHEMICAL ANALYSIS result figure;
Fig. 6 is the immunohistochemical analysis result figure of the tumor tissues in source identical with Human esophageal squamous cell cancer cell line ZEC-056;
Fig. 7 is Human esophageal squamous cell cancer cell line ZEC-056 cell clonal formation experimental result picture, wherein, and figure A, B and C inoculation
Cell number is respectively 500,1500 and 4500;
Fig. 8 is that mice becomes tumor experimental result picture.
Detailed description of the invention
Embodiment 1
From an example patient with esophageal carcinoma, (patient is 63 years old male, and tumor is positioned at Esophageal Middle Segment, and it is thin that postoperative pathological breaks up squamous in showing
Born of the same parents' cancer, TNM T4aN0M0 by stages, phase clinical stages 3A.) excision after tumor tissues sampling.Separator well new
Fresh human esophageal carcinoma, after cleaning with PBS, then cuts in culture dish with apparatuses such as ophthalmology tweezers, shears in aseptic super-clean bench
Broken it is separated into 0.5~1mm3Fritter be laid at the bottom of ware, and (GIBCO is public to add the 10%FBS containing 10mL in culture dish
Department), 1% dual anti-DMEM/F12 cell culture medium (GIBCO company), put into 37 DEG C, 5%CO2Incubator in carry out
Cultivate.Change liquid after 5~7 days, discard the downright bad floating fritter come off in piece of tissue, carry out Secondary Culture.In Secondary Culture process
In, utilize fibroblast different from tumor cell digestion power, constantly remove fibroblast.After repeatedly passing on, cultivate
In ware, naked eyes cannot observe fibroblast, and can pass on by continued propagation.Building after being tied to form merit, named Human esophageal squamous cell cancer is thin
Born of the same parents system ZEC-056, was preserved in the China typical culture collection being positioned at Wuhan, China Wuhan University on May 11st, 2016
The heart, preserving number is: CCTCC NO:C201691.
Embodiment 2
Take the Human esophageal squamous cell cancer cell line ZEC-056 cell of Secondary Culture, under an optical microscope (Japan Olympus IMT-2
Inverted microscope) observe living cell growth situation.As it is shown in figure 1, cell Optical Morphology picture, it is seen that cell growth is vigorous,
Clear background, impurity is rare, and cell is flat irregular polygon, and cell is the most closely coupled, meets the spy of epithelioid cell
Point.
Embodiment 3
Cell index (Cell Index) refers to that living cells interacts with microelectrode in detection plate hole, produces the change of electrical impedance,
XCELLigence cell function analyser, these signals are converted into specific parameter becomes cell index.Cell index is fine
Weighed the state growth of cell, diffusion, alteration of form, death, stress wait, cell index is by many magazines
Comment on and adopt.
Take the Human esophageal squamous cell cancer cell line ZEC-056 cell that growth conditions is good, through trypsinization, make cell suspension, and count
Number.The E-Plate detection plate of xCELLigence cell function analyser adds culture medium and measures background impedance value, then exists
E-Plate detection plate adds 100 μ L cell suspension (5000), in room temperature super-clean bench, places 30min.Cell will be added
E-Plate detection plate puts into (monitor station is placed in advance in incubator) on monitor station, carries out the cell proliferation detection of Real-time and Dynamic i.e.
Cell proliferation curve, keeping count 4~6 days can be obtained.Utilize Graph Pad Software on Drawing growth curve, and be calculated thin
The population doubling time of born of the same parents about 16 hours.As in figure 2 it is shown, growth after the present inventor's esophageal squamous cell carcinoma cell line ZEC-056 is adherent
Comparatively fast, there is good cultured and amplified in vitro.
Embodiment 4
Take Human esophageal squamous cell cancer cell line ZEC-056 cell, be planted in six orifice plates, after cultivating 48 hours, use 0.01mg/mL
Colchicine process 16h, when microscopy observes that M phase cell proportion is more than 50%, collect M phase cell.Use KCl
Hypotonic medium Hypotonic treatment M phase cell 15~20min, at room temperature solid as fixative with methanol/glacial acetic acid (volume ratio 3: 1)
Determine cell, film-making on slide.Slide being placed in 0.02% trypsin solution digestion 30~60s, rinses through PBS, Giemsa contaminates
Color, dries, and completes film-making.In basis of microscopic observation, calculate chromosome number in each cell, randomly select 20 cells and enter
Row calculates.As it is shown on figure 3, chromosome number is distributed between 38~49 mostly, mode is 44, meets the feature of malignant tumor.
Embodiment 5
STR (short tandem repeat, STR) is also called microsatellite DNA.General by one long 2~6bp
Core sequence through repeatedly tandem sequence repeats arrangement form, number of repetition is mostly between 10~60 times.The weight of core sequence between individuality
Again count in variability, thus the number of repetition of one group of STR sequence is the most unique in Different Individual, is that cell is raw
The main method that cell identity and source are identified by thing.Human esophageal squamous cell cancer cell line ZEC-056 collecting fresh cultured is thin
Born of the same parents, with Qiagen genomic DNA Mini Kit (purchased from Qiagen company, name of article QIAamp DNA Mini Kit,
Article No. is 51304) extract cell genomic dna, carry out PCR amplification, to gained with 5' end fluorescently-labeled STR primer
Product checks order.Wherein the primer sequence of STR bit point and copy number are as shown in table 1 and Fig. 4.Above-mentioned sequence and ATCC,
The cells such as DSMZ preserve the data base in storehouse and carry out inquiry contrast, do not find identical STR testing result, thus may certify that it is
Uniquely, and the cross-contamination with other cells does not occurs during original cuiture.
The copy number in table 1STR site.
Labelling (Marker) | Allele 1 (Allele 1) | Allele 2 (Allele 2) |
TH01 | 9 | 9 |
D12S391 | 18 | 18 |
D7S820 | 11 | 13 |
CSF1PO | 10 | 10 |
FGA | 22 | 23 |
AMEL | X | Y |
D5S818 | 9 | 9 |
D2S1338 | 22 | 22 |
D21S11 | 29 | 29 |
D18S51 | 17 | 17 |
TPOX | 8 | 8 |
VWA | 14 | 15 |
D8S1179 | 10 | 11 |
D3S1358 | 15 | 17 |
D13S317 | 8 | 8 |
D6S1043 | 11 | 14 |
D16S539 | 9 | 13 |
PENTAE | 12 | 22 |
D19S433 | 13 | 15.2 |
PENTAD | 9 | 12 |
Embodiment 6
SABC detection Human esophageal squamous cell cancer cell line ZEC-056 cellular labeled proteins.S-P method is used to carry out immunohistochemical staining,
Related kit is purchased from Fuzhou Maixin biotechnology Development Co., Ltd.Antibody used be CK5/6 (article No. MAB-0276,
Foochow steps new company), P63 (article No. ZM-04-06, Beijing company of Zhong Shan Golden Bridge), (article No. ZA-0540, in Beijing for CK14
Company of shirt Golden Bridge), CgA (article No. ZA-0507, Beijing company of Zhong Shan Golden Bridge), Sy (article No. IR660, DAKO company),
CD56 (I article No. R628, DAKO company).
Tumor tissues SABC: tissue (for obtaining the same tumor sample of cell in embodiment 1) wax stone dewaxes also through routine
Aquation, uses 3%H2O2Deionized water soaks 10 minutes, to block endogenous peroxydase, is then put into 0.01M pH6.0
Inflexible rubber acid buffer in, pressure cooker spray vapour half a minute carry out antigen retrieval.Dropping one resists, incubated at room temperature 60 minutes, PBS
Wash buffer 3 times, each 2 minutes.Dropping Polymer Helper (polymeric adjuvants), incubated at room temperature 20 minutes,
PBS flushing 3 times, each 2 minutes.Dropping Polyperoxidase-anti-mouse/rabbit IgG, incubated at room temperature
30 minutes, PBS flushing 3 times, each 2 minutes.Dilution preparation DAB solution, develops the color 5~10 minutes, Jing Xiaguan
Examine.Clear water rinses, and haematoxylin is redyed, conventional dehydration, transparent, mounting.
Tumor cell SABC: cell to be detected (Human esophageal squamous cell cancer cell line ZEC-056 cell) shifts to an earlier date 24 hours creep plates
On sterilization microscope slide, after 24 hours, rinsing 2 times with PBS, cold acetone fixes 15 minutes, is soaked in PBS
Standby.Taking the incubated at room temperature 10 minutes that required slide adds 50 μ L peroxidase blocking solution (reagent A), PBS buffers
Liquid rinses 3 times, each 3 minutes, removes PBS liquid, drips the normal nonimmune animal serum of 50 μ L (reagent B), under room temperature
Hatch 10 minutes;Removing serum, drip 50 μ L mono-and resist, incubated at room temperature 60 minutes, PBS flushes three times, each 3~5
Minute;Dropping two resists, and incubated at room temperature 10 minutes, PBS flushes three times, each 3 minutes.Dropping
Polyperoxidase-anti-mouse/rabbit IgG, incubated at room temperature 30 minutes, PBS flushing 3 times, each 2 points
Clock.Dilution preparation DAB solution, develops the color 5~10 minutes, Microscopic observation.Clear water rinses, and haematoxylin is redyed, conventional dehydration,
Transparent, mounting.
As shown in Figure 5 and Figure 6, Human esophageal squamous cell cancer cell line ZEC-056 cell is that CK5/6 is positive to result, and CK14 is positive,
P63 is positive, and CgA is negative, and Sy is negative and CD56 is negative.The immunohistochemistry results with tissue of cell all illustrates that people eats
Pipe squamous cell carcinoma system ZEC-056 is scale cancer source.
Embodiment 7
Take the Human esophageal squamous cell cancer cell line ZEC-056 cell that growth conditions is good, after trypsinization, make cell suspension, and count
Number.By cell suspension with 500,1500,4500 cell per well are inoculated in 6 orifice plates.6 orifice plates are placed in incubator,
Quiescent culture 2 weeks, changes weekly liquid 2 times.After 2 weeks, discarding cell culture fluid, after rinsing with PBS, absolute methanol fixes 10
Min, then by 0.1% violet staining 10min, washes away dyeing liquor, drying at room temperature, and Taking Pictures recording.As it is shown in fig. 7,
The cloning efficiency of Human esophageal squamous cell cancer cell line ZEC-056 cell and inoculum density have relation, and inoculum density is 4500 cells
Time Cell clonality stronger.
Embodiment 8
Take the Human esophageal squamous cell cancer cell line ZEC-056 cell that growth conditions is good, after trypsinization, make cell suspension, and count
Number.Cell suspension is inoculated into 5 nude mice (nude mouse) oxters, Continuous Observation respectively with 10,000,000 cells.Result of the test
As shown in Figure 8, accessible to lump, increase in time after 2 weeks after inoculation, lump increases.
Claims (8)
1. esophageal carcinoma cell line, it is characterised in that named Human esophageal squamous cell cancer cell line ZEC-056, preserving number is: CCTCC
NO:C201691.
2. the daughter cell of esophageal carcinoma cell line as claimed in claim 1.
3. esophageal cancer cell as claimed in claim 1 ties up to the application in the cell model as esophageal carcinoma genesis mechanism research.
4. esophageal cancer cell as claimed in claim 1 ties up to set up the application in mammal esophageal carcinoma model.
Apply the most as claimed in claim 4, it is characterised in that described mammal is nude mouse or nude rat.
6. esophageal cancer cell as claimed in claim 1 ties up to extract the application in esophageal carcinoma specific tumour mark.
7. the application during esophageal cancer cell as claimed in claim 1 ties up to screening or assessment treatment esophageal carcinoma medicine.
8. esophageal cancer cell as claimed in claim 1 ties up to develop the application in esophageal carcinoma detection kit.
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CN111662874A (en) * | 2020-06-18 | 2020-09-15 | 上海市胸科医院 | Chinese esophageal squamous carcinoma cell line and application thereof |
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