CN106047814A - Esophageal cancer cell line and application thereof - Google Patents

Esophageal cancer cell line and application thereof Download PDF

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CN106047814A
CN106047814A CN201610581115.3A CN201610581115A CN106047814A CN 106047814 A CN106047814 A CN 106047814A CN 201610581115 A CN201610581115 A CN 201610581115A CN 106047814 A CN106047814 A CN 106047814A
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cell
esophageal
cell line
cancer cell
esophageal cancer
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苏丹
毛伟敏
蒋友华
应莉莎
吴军舟
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Zhejiang Cancer Hospital
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Abstract

The invention discloses an esophageal cancer cell line and application thereof. The esophageal cancer cell line is named as human esophageal squamous cancer cell line ZEC-118, and the preservation number of the esophageal cancer cell line is CCTCC No. C201694. The human esophageal squamous cancer cell line ZEC-118 is from excised tumor tissue of a Chinese esophageal cancer patient, and the STR detecting result proves that the cell line is unique. In addition, the esophageal cancer cell line does not have cross contamination with other cells during primary culture, is high in clone formation ability and poor in tumorigenicity, and can be used as an ideal cell line for esophageal cancer researches, esophageal cancer detection kit development, esophageal cancer medicine screening, and the like.

Description

A kind of esophageal carcinoma cell line and application thereof
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 Widely different with mortality rate various countries.China is one of Esophageal Cancer area in the world, and every annual is died of illness about 150,000 people.Man is many Yu Nv, 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, Then being semiliquid diet, last water and saliva can not be swallowed.In China, Incidence of esophageal cancer occupies general tumour the 5th, its Mortality 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 when swallowing thick and stiff food 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 Sense.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 semi-fluid then before this Food, last water and saliva can not be swallowed.Often tell mucoid expectorant, for the saliva swallowed and the secretions of esophagus.Patient is gradually Become thin, be dehydrated, unable.Continuing chest pain or backache is expressed as symptom in late period, cancer has been invaded and has been organized outside esophagus.Block when cancerous protuberance and drawn The inflammation edema transient remission risen, 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 invades recurrent laryngeal nerve, may occur in which hoarseness;If compressing cervical sympathetic ganglia, Horner syndrome can be produced;If invading Trachea-bronchial epithelial cell, can form esophagus, trachea or bronchial fistula, acutely chokes and cough when there is swallowing water or food, and occurs to breathe system Togetherness contaminates.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, based on the Comprehensive Treatment of operation Through having reached 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 suitably Study model.The most conventional esophageal cancer cell strain is mainly derived from Japan, including KYSE series and TE series.These Cell line passes on the most in vitro, and some have lost the characteristic of primary tumor tissues.Because race difference, living habit is not With reasons such as, environmental factorss, these cells containing sequences represent the type of China's esophageal carcinoma and feature exists the biggest query.Domestic few The cell strain that number laboratory has been set up is less, and the widely used cell strain of part is polluted by other cells so that the esophageal carcinoma Research 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 more eat Pipe JEG-3 contributes to research and development and the application of targeted drug.Set up the esophageal cancer cell strain in Chinese source, for esophageal squamous cell carcinoma Pathogenesis and treatment new model is provided, there is important theory and actual application and be 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 China The esophageal carcinoma cell line of people.
From an example patient with esophageal carcinoma, (patient is 57 years old women to the present inventor's esophageal squamous cell carcinoma cell line ZEC-118, and tumor is positioned at Esophageal Middle Segment, postoperative pathological breaks up squamous cell carcinoma, TNM T2N0M0 by stages, patient clinical 1B phase by stages 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-118, 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:C201694.
The growth of the present inventor's esophageal squamous cell carcinoma cell line ZEC-118 cell is vigorous, and clear background, impurity is rare, and cell is flat Flat irregular polygon, cell the most closely coupled one-tenth monofilm, meet the feature of squamous epithelial cancer like cell.After adherent, growth is relatively Hurry up, there is good cultured and amplified in vitro.Chromosome number is distributed between 49~85 mostly, and mode is 60, meets pernicious The feature of tumor.
The cells such as the STR sequencing result of the present inventor's esophageal squamous cell carcinoma cell line ZEC-118 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-118 cell is that CK5/6 is weak The positive, CK14 is positive, the weak positive of p63, 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-118 cell has with inoculum density 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-118 Tumor formation is poor.
Invention further provides the daughter cell of described esophageal carcinoma cell line.Described daughter cell retains substantially or all The characteristic of parental cell.
Invention further provides described esophageal cancer cell to tie up in the cell model as esophageal carcinoma genesis mechanism research Application.Owing to the present inventor's esophageal squamous cell carcinoma cell line ZEC-118 is originated foundation from Chinese, and to build be that the time is shorter, Character is stable, using this esophageal carcinoma cell line as study model, has for understanding Chinese primary esophageal carcinogenesis mechanism The biggest help.
Present invention also offers described esophageal cancer cell to tie up to set up the application in mammal esophageal carcinoma model.Described Mammal be nude mouse or nude rat.By by thin for described Human esophageal squamous cell cancer cell line ZEC-118 of certain cell quantity Born of the same parents are 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 comparing research with normal esophageal cells and other kinds of cancer cell, it appeared that the molecule mark of the esophageal carcinoma Note, can carry out the application of the aspects such as follow-up disease detection and drug development for this molecular marker.
Present invention also offers described esophageal cancer cell and tie up to the application in screening or assessment treatment esophageal carcinoma medicine.First First, by adding different pharmaceutical in described Human esophageal squamous cell cancer cell line ZEC-118 culture medium, observation of cell state changes, obtains Obtain tentatively effective drug candidate.Then, drug candidate is administered to the animal model of the above-mentioned esophageal carcinoma, observes and non-dispenser group The survival period of animal, 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.Find food After the specific tumor markers of pipe cancer, the detection esophageal carcinoma can be developed according to this tumor markers and occur or the inspection of development Test agent box.
After the excision of the patient with esophageal carcinoma that the present inventor's esophageal squamous cell carcinoma cell line ZEC-118 comes from an example China Tumor tissues, STR testing result proves that it is unique, and does not occurs the intersection with other cells dirty during original cuiture Dye, clonality is strong, and Tumor formation is poor, can be as esophageal carcinoma research and the exploitation of esophageal carcinoma detection kit, drug sieve The ideal cell line of the aspect application such as choosing.
Accompanying drawing explanation
Fig. 1 is the Morphology observation figure of Human esophageal squamous cell cancer cell line ZEC-118 cell;
Fig. 2 is the cell growth curve figure of Human esophageal squamous cell cancer cell line ZEC-118;
Fig. 3 is the karyotype scattergram of Human esophageal squamous cell cancer cell line ZEC-118 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-118 cellular immunization CYTOCHEMICAL ANALYSIS result figure;
Fig. 6 is the immunohistochemical analysis knot of the tumor tissues in source identical with Human esophageal squamous cell cancer cell line ZEC-118 Fruit figure;
Fig. 7 is Human esophageal squamous cell cancer cell line ZEC-118 cell clonal formation experimental result picture, wherein, and figure A, B and C inoculation Cell number is respectively 500,1500 and 4500.
Detailed description of the invention
Embodiment 1
From an example patient with esophageal carcinoma, (patient is 57 years old women, and tumor is positioned at Esophageal Middle Segment, and postoperative pathological breaks up squama in showing Shape cell carcinoma, TNM T2N0M0 by stages, the patient clinical 1B phase by stages.) excision after tumor tissues sampling.Separator well Fresh human esophageal carcinoma, after cleaning with PBS in aseptic super-clean bench, then with apparatuses such as ophthalmology tweezers, shears in culture dish Shred and be 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 cultivate.5 ~change liquid after 7 days, discard the downright bad floating fritter come off in piece of tissue, carry out Secondary Culture.During Secondary Culture, utilize Fibroblast is different from tumor cell digestion power, constantly removes fibroblast.After repeatedly passing on, naked eyes in culture dish Cannot observe fibroblast, and can pass on by continued propagation.Build after being tied to form merit, named Human esophageal squamous cell cancer cell line ZEC- 118, the China typical culture collection center being positioned at Wuhan, China Wuhan University, preserving number it is preserved on May 11st, 2016 For: CCTCC NO:C201694.
Embodiment 2
Take the Human esophageal squamous cell cancer cell line ZEC-118 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 prosperous Containing, clear background, impurity is rare, and cell is flat irregular polygon, cell the most closely coupled one-tenth monofilm, meets squamous The feature of epithelioid cell.
Embodiment 3
Cell index (Cell Index) refers to that living cells interacts with microelectrode in detection plate hole, produces electrical impedance Changing, xCELLigence cell function analyser, these signals are converted into specific parameter becomes cell index.Cell refers to Number has been weighed the state growth of cell, diffusion, alteration of form, death well, stress have been waited, and cell index is by many families Magazine is commented on and adopts.
Take the Human esophageal squamous cell cancer cell line ZEC-118 cell that growth conditions is good, through trypsinization, make cell suspension, And count.The E-Plate detection plate of xCELLigence cell function analyser adds culture medium and measures background impedance value, Then in E-Plate detection plate, add 100 μ L cell suspension (5000), in room temperature super-clean bench, place 30min.To add thin The E-Plate detection plate of born of the same parents puts into (monitor station is placed in advance in incubator) on monitor station, carries out the cell proliferation of Real-time and Dynamic Detection can obtain cell proliferation curve, keeping count 4~6 days.Utilize Graph Pad Software on Drawing growth curve, and calculate Obtain the population doubling time about 52 hours of cell.As in figure 2 it is shown, after the present inventor's esophageal squamous cell carcinoma cell line ZEC-118 is adherent Growth is very fast, has good cultured and amplified in vitro.
Embodiment 4
Take Human esophageal squamous cell cancer cell line ZEC-118 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 Liquid Hypotonic treatment M phase cell 15~20min is at room temperature fixing thin as fixative with methanol/glacial acetic acid (volume ratio 3: 1) Born of the same parents, film-making on slide.Slide being placed in 0.02% trypsin solution digestion 30~60s, rinses through PBS, Giemsa dyes, and dries in the air Dry, complete film-making.In basis of microscopic observation, calculate chromosome number in each cell, randomly select 20 cells and calculate. As it is shown on figure 3, chromosome number is distributed between 49~85 mostly, mode is 60, meets the feature of malignant tumor.
Embodiment 5
STR (short tandem repeat, STR) is also called microsatellite DNA.General long by 2 by one ~the core sequence of 6bp forms through the arrangement of repeatedly tandem sequence repeats, number of repetition is mostly between 10~60 times.Core sequence between individuality The number of repetition of row is variability, thus the number of repetition of one group of STR sequence is the most unique in Different Individual, is The main method that cell identity and source are identified by cytobiology.Collect the Human esophageal squamous cell cancer cell line of fresh cultured ZEC-118 cell, 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 with 5' end fluorescently-labeled STR primer, right Products therefrom 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 only One, and during original cuiture, there is not the cross-contamination with other cells.
The copy number in table 1STR site.
Labelling (Marker) Allele 1 (Allele 1) Allele 2 (Allele 2)
TH01 9 9
D12S391 17 19
D7S820 10 10
CSF1PO 12 12
FGA 23 25
AMEL X X
D5S818 12 12
D2S1338 18 20
D21S11 30 31
D18S51 15 21
TPOX 8 11
VWA 17 18
D8S1179 14 14
D3S1358 15 17
D13S317 10 11
D6S1043 17 18
D16S539 9 9
PENTAE 11 11
D19S433 13 15
PENTAD 8 13
Embodiment 6
SABC detection Human esophageal squamous cell cancer cell line ZEC-118 cellular labeled proteins.S-P method is used to carry out SABC Dyeing, related kit is purchased from Fuzhou Maixin biotechnology Development Co., Ltd.Antibody used is 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 goods Number R628, DAKO company).
Tumor tissues SABC: tissue (for obtaining the same tumor sample of cell in embodiment 1) wax stone takes off through routine Wax aquation, use 3%H2O2Deionized water soaks 10 minutes, to block endogenous peroxydase, is then put into 0.01M In the inflexible rubber acid buffer of pH6.0, pressure cooker spray vapour half a minute carries out antigen retrieval.Dropping one resists, incubated at room temperature 60 minutes, PBS flushing 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, incubates under room temperature Educate 30 minutes, PBS flushing 3 times, each 2 minutes.Dilution preparation DAB solution, develops the color 5~10 minutes, Microscopic observation.Clearly 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-118 cell) is climbed in advance for 24 hours Sheet is on sterilization microscope slide, after 24 hours, rinses 2 times with PBS, and cold acetone fixes 15 minutes, is soaked in PBS standby With.Taking the incubated at room temperature 10 minutes that required slide adds 50 μ L peroxidase blocking solution (reagent A), PBS rinses 3 Secondary, each 3 minutes, remove PBS liquid, drip the normal nonimmune animal serum of 50 μ L (reagent B), incubated at room temperature 10 minutes;Remove Serum deprivation, drips 50 μ L mono-and resists, and incubated at room temperature 60 minutes, PBS flushes three times, each 3~5 minutes;Dropping two resists, under room temperature Hatching 10 minutes, PBS flushes three times, each 3 minutes.Dropping Polyperoxidase-anti-mouse/rabbit IgG, room Hatch under temperature 30 minutes, PBS flushing 3 times, each 2 minutes.Dilution preparation DAB solution, develops the color 5~10 minutes, under mirror Observe.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-118 cell is the weak positive of CK5/6 to result, and CK14 is positive, The weak positive of p63, CgA is negative, and Sy is negative and CD56 is negative.The immunohistochemistry results with tissue of cell all illustrates people's esophagus Squamous cell carcinoma system ZEC-118 is scale cancer source.
Embodiment 7
Take the Human esophageal squamous cell cancer cell line ZEC-118 cell that growth conditions is good, after trypsinization, make cell suspension, And count.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 10min, so Afterwards by 0.1% violet staining 10min, wash away dyeing liquor, drying at room temperature, and Taking Pictures recording.As it is shown in fig. 7, Human esophageal squamous cell cancer The cloning efficiency of cell line ZEC-118 cell and inoculum density have relation, and inoculum density is the cell gram during 4500 cells Grand Forming ability is stronger.
Embodiment 8
Take the Human esophageal squamous cell cancer cell line ZEC-118 cell that growth conditions is good, after trypsinization, make cell suspension, And count.Cell suspension is inoculated into 5 nude mice (nude mouse) oxters, Continuous Observation respectively with 10,000,000 cells.8 weeks as a result After do not become tumor.

Claims (8)

1. esophageal carcinoma cell line, it is characterised in that named Human esophageal squamous cell cancer cell line ZEC-118, preserving number is: CCTCC NO:C201694.
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 answering in the cell model as esophageal carcinoma genesis mechanism research With.
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.
CN201610581115.3A 2016-07-22 2016-07-22 Esophageal cancer cell line and application thereof Pending CN106047814A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102766599A (en) * 2012-07-06 2012-11-07 中国人民解放军第二军医大学 Application of esophageal squamous cell carcinoma primary tumor strain CH-H-1

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102766599A (en) * 2012-07-06 2012-11-07 中国人民解放军第二军医大学 Application of esophageal squamous cell carcinoma primary tumor strain CH-H-1

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
卢善明 等: "食管癌细胞系CSEC的建立及其生物学特性", 《实用肿瘤杂志》 *

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Application publication date: 20161026