Liphanele tsa Luminex Cytokine Lithutong tsa Organoid: Tšitiso ea Peptide Reagent le Litaolo tsa Teko
Peptide Synthesis Boraro-bo-bong (3D) mefuta ea organoid-haholo-holo ea boko, neuroimmune, le intestinal human organoids-li fetotse mokhoa oa ho fetolela mafu. Ka ho tsosolosa kaho ea lisele le mefuta e fapaneng ea lisele, meetlo ea organoid e lumella bafuputsi ho lekanya secretion ea cytokine le chemokine sebakeng sa ho arabela ho li-agent tsa phekolo., likokoana-hloko tse etsisang, kapa li-agonists tsa maiketsetso tsa peptide. Litlhahlobo tsa li-multiplex tse thehiloeng ho lifaha, joalo ka theknoloji ea Luminex xMAP, emela maemo a khauta bakeng sa ho hlahisa li-supernatant tse rarahaneng ka lebaka la tšebetso ea tsona e phahameng, bophara bo pharaletseng, le litlhoko tse fokolang tsa molumo oa sampole (25-50 μL).
Leha ho le joalo, quantifying neuroimmune mediators in organoid conditioned mediators e hlahisa mathata a ikhethang a tlhahlobo. Li-peptide tsa maiketsetso li kentsoe litsong joalo ka li-receptor ligands, bonkgetheng ba kalafo, kapa li-aggregator tsa mafu (mohlala, beta-amyloid, alpha-synuclein, kapa li-epitopes tsa vaerase) hangata e hlahisa li-artifactual readouts tse matla. Ha e kopantsoe le matrix a viscous extracellular (ECM) Li-hydrogel tse kang Matrigel kapa Geltrex, li-reagents tsena li etsa hore ho se be le lifaha tse fapaneng, ho tima moqolotsi oa litaba, ho tsoa mali ka mahlo, le litlamorao tsa prozone. Ntle le taolo e matla ea liteko, lintho tsena tse entsoeng ka matsoho li hlahisa mesaeno e fosahetseng ea ho ruruha kapa ho pata likarabo tsa 'nete tsa baeloji.
Tataiso ena ea tekheniki e hlalosa mekhoa ea biophysical e tsamaisang peptide ea maiketsetso le tšitiso ea li-label litekong tsa Luminex., e hlahisa liprothokholo tsa taolo ea spike-and-recovery, le lintlha tse qaqileng tsa maano a ho itokisa ho etsa bonnete ba hore o matla, Phatlalatso-grade multiplex cytokine data.
Mekhoa ea Biophysical ea Synthetic Peptide le Thibelo ea Label
Theknoloji ea Luminex xMAP e itšetlehile ka polystyrene kapa magnetic microspheres tse dailoeng ka hare ka tekanyo e nepahetseng ea fluorophores e khubelu le ea infrared.. Laser e khubelu kapa LED (635 nm) e khetholla sebaka se itseng sa lifaha (boitsebiso ba analyte), ha e ntse e le laser e tala kapa LED (532 nm) e thabisa Streptavidin-Phycoerythrin (SAPE) e tlameletsoe ho li-antibodies tsa biotinylated ho lekanya mohlahlobi o lebisitsoeng (Bolela Matla a Fluorescence, MFI). Li-peptide tsa maiketsetso le liphetoho tsa tsona tsa lik'hemik'hale li kopana le mohato o mong le o mong oa ts'ebetso ena ea optical le immunochemical.
Non-Specific Bead Adsorption ka Hydrophobic le Electrostatic Patches
Li-peptide tsa maiketsetso tse sa fetoloang le tse fetotsoeng hangata li na le amphipathic, haholo hydrophobic, kapa libaka tsa tatellano ea polycationic. Tatelano ya polycationic e nang le arginine-rich kapa TAT-joaloka cell-peneting motifs e tlama electrostatic ka holim'a carboxylated ea lifaha tsa makenete. (MagPlex). Ka mokhoa o ts'oanang, lihlopha tsa hydrophobic peptide (e ruileng ka leucine, isoleucine, kapa tryptophan) adsorb eseng ka ho khetheha ho polystyrene microspheres.
Tlamahano ena e sa totobalang e etsa lera la protheine holim'a lifaha tse nkang li-antibodies kapa limolek'hule tsa motlalehi oa SAPE ntle le boteng ba cytokine.. Ka lebaka leo, Bafuputsi ba bona litekanyetso tse phahameng tsa MFI ho likanale tse ngata tse sa amaneng tsa cytokine, ho etsisa ts'ebetso e pharaletseng ea neuroimmune.
Prozone ea tekanyo e phahameng (Hook) Liphello tsa Peptide Stimulation
Litlhahlobong tse sebetsang tsa organoid, li-peptide tsa maiketsetso li sebelisoa khafetsa maemong a micromolar ho susumetsa li-receptor kapa ho kopanya protheine ea mohlala.. Ha li-supernatant tse nang le maemo a phahameng tse nang le masala a mangata a peptide kapa maemo a cytokine a bakoang ke peptide a feta 50,000 pg/mL li hlahlojoa ntle le ho hlapolloa ho lekaneng, prozone (hoko ya tekanyo e hodimo) phello e etsahala.
Likaroloana tsa analyte tse sa tlamisoeng kapa tse tšelang li-cross-reactive peptide li tlatsa li-antibodies tse tlamang ka lifaha le li-antibodies tse fumanehang ka har'a biotinylated ka nako e le 'ngoe.. Sena se thibela ho thehoa ha "sandwich" ea khale e rarahaneng (Tšoara Ab - Analyte - Detection Ab-Biotin). Ho e-na le hoo, arola ho hapa-analyte le ho lemoha-analyte binary complexes foromo ka tharollo, ho baka bohale, Ho theoha ho makatsang ha lets'oao la MFI ho sa tsotelehe likhakanyo tsa analyte tse phahameng haholo.
Optical Crosstalk le Bead Misclassification ho tloha Fluorescent Labels
Li-peptide tse tšoailoeng ke Fluorophore (mohlala, FITC, FAM, Cy5, kapa Alexa Fluor 647) li sebelisoa haholo lithutong tsa ho amohela li-organoid le lithuto tse tlamang li-receptor. Li-fluorophore tse setseng tse setseng mecheng ea litaba tse hlophisitsoeng li baka tšitiso e matla ea mahlo le lits'ebetso tsa ho lemoha tsa Luminex:
- Motlalehi oa Channel Crosstalk: Fluorophores joalo ka FITC kapa FAM e na le ponahalo e pharalletseng ea tlhahiso (tlhahiso ea tlhoro ~ 520 nm) tse kopanang le kanale ea moqolotsi oa litaba oa SAPE (tlhoro ea tlhahiso ~ 575 nm). Li-fluorophore tse sa tlamelloang kapa tse sa tsitsang ka ho khetheha li hlahisa fluorescence ea maiketsetso tlas'a 532 nm laser excitation, ho phahamisa MFI ea motheo le ho fana ka maikutlo a fosahetseng.
- Bead Ho fapana ka maemo: Li-fluorophore tse bofubelu bo hole joalo ka Cy5 kapa Alexa Fluor 647 hlahisa leseli fensetereng ea 660-680 nm, e tsamaisanang ka kotloloho le li-bead-classification red laser optics (635 nm nyakallo). Ts'ebetso ena ea ho tsoa ha mali e fetola ponahalo ea ponahalo ea li-microspheres, ho etsa hore sesebelisoa sa Luminex se arole lifaha ka mokhoa o fosahetseng ho ba libaka tsa analyte tse fosahetseng kapa ho li hana joalo ka "lifaha tse sa abeloang,” e bakang lipalo tse tlase tsa lifaha le ho haella ha lintlha tsa data.
Ho felisoa ha Motlalehi oa SAPE ka Biotin-Tagged Reagents
Li-peptide tsa maiketsetso tsa Biotinylated ke lisebelisoa tse tloaelehileng bakeng sa ho theola kamano le ho lelekisa pulse-chase ho phallo ea mosebetsi ea organoid.. Leha ho le joalo, Li-peptide tsa mahala tsa biotinylated tse teng ho li-supernatant tsa setso li fana ka mokhoa oa bohlokoa oa tšitiso: tlholisano e tobileng bakeng sa motlalehi oa moqolotsi oa litaba oa SAPE.
Nakong ea mohato oa bobeli oa ho incubation, Li-peptide tsa mahala tsa biotinylated li tlamahanngoa le "sub-picomolar affinity" ho Streptavidin-Phycoerythrin ka tharollo.. Sena se qeta letamo le fumanehang la SAPE, ho thibela khokahanyo ea moqolotsi ho li-antibodies tsa biotinylated tse sa sebetseng holim'a lifaha tsa cytokine.. Ka hoo, matšoao a 'nete a cytokine a tima haholo, e lebisang ho balello ba fosahetseng.
Key Takeaway: Fluorophores e ntšang haufi 575 nm ka maiketsetso moqolotsi oa litaba oa MFI, ha li-labels tse khubelu li sotha 635 nm kanale ea lifaha. Li-peptide tsa mahala tsa biotinylated li qothisana lehlokoa le SAPE ka kotloloho, ho hatella matšoao a 'nete a cytokine ka ho fihlela 90%.
ECM Matrix Liphello: Ho bua le Matrigel le Organoid Media Suppression
Tikoloho ea setso ea 3D organoids e itšetlehile haholo ka li-hydrogel tse rarahaneng tsa extracellular matrix (Matrigel, Geltrex, kapa matrices a recombinant collagen) le mecha ea phatlalatso e khethehileng e se nang serum e tlatselitsoeng ka lintlha tsa kholo, B27, le N2. Li-additives tsena li baka tšitiso e kholo ea matrix e fapaneng le moetlo o tloaelehileng oa sele ea monolayer.
Phephetso ea Organoid Supernatant Matrix
Mokelikeli oa ECM Hydrogels (Laminin, Collagen IV, HSPGs)
E eketsa viscosity ea mohlala
Apara li-microspheres → Thibelo ea 'mele ea li-antibodies tse hapang
Lisebelisoa tsa Media & Lintlha tsa Khōlo (BDNF, GDNF, FGF-2)
Liphetoho tse fapaneng le likarolo tsa sebopeho sa cytokine homology
Mesaletsa ea Lisele Debris & Li-microparticles
E hlohlelletsa ho kopanya lifaha & ho koaloa ha capillary ka har'a li-fluidics
Liprotheine tse qhibilihang ka tlas'a lefatše, haholo-holo likaroloana tsa lamine le collagen IV, eketsa viscosity e makatsang le ho apesa li-microspheres ka lera le sa khetheheng la gel. Tšitiso ena ea 'mele e thibela lipalangoang tse ngata tsa antibody-antigen, ho baka kgatello ya letshwao le sa tsitsang. Ho feta moo, likhakanyo tse phahameng tsa lintlha tsa kholo tse kenyellelitsoeng mecheng ea litaba tsa neural organoid li ka ts'oana le li-antibodies tse ts'oaroang tsa cytokine ka lebaka la sebopeho sa domain homology., ho hlahisa matshwao a motheo a fosahetseng.
Bafuputsi ba hlahlobang matrices a rarahaneng ba ka bua litlhahlobo tse hlahlojoang ke lithaka tsa khatello ea matrix ea multiplex ho utloisisa hore na liforomo tse tloaelehileng tsa assay diluent hangata li hloleha ho fetola ka botlalo thibelo e bakoang ke matrix ntle le litlhophiso tse ikhethileng le tse thibelang..
Liprothokhole tsa Taolo ea Bongata le Liforomo tsa netefatso ea tlhahlobo
Ho khetholla likarabo tsa 'nete tsa biological cytokine ho tsoa ho maiketsetso a peptide le matrix, bafuputsi ba lokela ho theha mekhoa ea bona ea netefatso ho latela litataiso tsa machaba tsa bioanalytical, joalo ka ICH Q2(R1) le FDA Bioanalytical Method Validation standards. Pele o sekaseka lisampole tsa liteko tsa organoid, Li laboratori li tlameha ho sebelisa liprothokholo tse tharo tsa netefatso ea palo ho netefatsa ho nepahala ha benchmark, nepahalo, le mamello ea matrix.
1. Tlhahlobo ea Spike-and-Recovery
Liteko tsa Spike-and-Recovery li lekola hore na sampole ea matrix kapa synthetic peptide reagent e fetola lets'oao le lebelletsoeng la mahloriso a tsebahalang a analyte.. Likarolo tse tsebahalang tsa litekanyetso tsa cytokine tse kopantsoeng li kenngoa ka har'a likoloi tse tharo tse bapileng.:
- Diluent e Tloaelehileng ea Tekanyetso (C e fokotsehile)
- Mecha ea litaba e sa tsitsang ea Organoid Conditioned (C matrix)
- Mecha ea litaba ea Organoid Conditioned + Synthetic Peptide Reagent (C matrix + peptide)
The Percent Spike Recovery (R%) e baloa joalo ka:
R% = C sampole ea spiked - C sampole e sa butsoang{C spiked diluent} × 100%
- Mokhoa oa ho Amohela: 80% ≤ R% ≤ 120%.
- Tlhaloso: Ho hlaphoheloa ka tlase 80% e bonts'a khatello ea matrix kapa ho fokotseha ha SAPE ke li-reagents tsa biotinylated. Ho hlaphoheloa ka holimo 120% matshwao a tlatsetso a fluorescence crosstalk kapa tlamahano e sa kgetheng.
2. Matrix Effect Suppression Percentage
Ho arola ho tima ho tima matrix ho lerata la optical additive, bala Matrix Effect Peresente (ME%):
ME% = ( 1 – MFI_{spiked matrix} – MFI_{matrix a sa tsitsang}{MFI_{spiked diluent} – MFI_{hlapollo e se nang letho}} ) × 100%
Boleng ba ME% > 15% e laela tlhahiso ea sampole kapa phetoho e hlapollang ka li-surfactants tse seng tsa ionic.
3. Serial Dilution Parallelism Linearity
Dilution parallelism e tiisa hore karabelo ea analyte e sebetsa ka mokhoa o lekanang ho pholletsa le serial dilutions., ho tiisa hore tšitiso ea matrix kapa peptide e felisoa ka mokhoa o itseng oa ho sebetsa.
Li-supernatant tsa Organoid li hlapollotsoe 1:2, 1:4, 1:8, le 1:16 ka optimized assay diluent. Likhakanyo tse lokisitsoeng li baloa ka ho atisa litekanyetso tse lekantsoeng ka ntlha ea dilution:
Kemiso e Lokisitsoeng = Tekanyo e Lekanyelitsoeng × Ntho e Hlakollang
- Mokhoa oa ho Amohela: Likhakanyo tse shebiloeng ho pholletsa le dilution tse latellanang li tlameha ho boloka ho hlaphoheloa ka hare ho 85-115% ea boleng ba pele bo hlapolotsoeng., e nang le khokahanyo e lekanang ea mela e R² ≥ 0.98. Keketseho e sa lekanyetsoang ea khatello e lokisitsoeng ha e hlapolloa e bonts'a ho imoloha litlamorao tsa prozone kapa khatello ea matrix.
Bakeng sa Keletso: Kamehla tsamaisa taolo ea "peptide-feela" e nang le "peptide reagent" ea maiketsetso ka har'a assay diluent ntle le organoid supernatant ho pholletsa le phanele eohle ea multiplex.. MFI efe kapa efe e kaholimo ho semelo sena e bonts'a ts'ebetso e tobileng ea peptide-bead cross-reactivity kapa label crosstalk..
Empirical Case Snapshot: Neuroimmune Organoid IL-6 le TNF-α Spike Recovery
Ho hlakisa phello e sebetsang ea litsamaiso tsena, Tafole 1 e bonts'a data ea moemeli ea tsoang ho mecha ea litaba ea neuroimmune organoid conditioned e hlahlobang IL-6 le TNF-α ho hlaphoheloa pele le ka morao ho centrifugation ea mekhahlelo e 'meli le 1:8 diluent optimization (0.05% Mahareng-20 + 1% BSA).
| Boemo / Analyte | Supernatant e sa hlalosoang (1:2 Phapollo) | Supernatant e hlakileng + Diluent e ntlafalitsoeng (1:8 Phapollo) | Sephetho sa netefatso | ||||
|---|---|---|---|---|---|---|---|
| IL-6 Spike Recovery (R%) | 58.4% (Khatello e Matla ea Matrix) | 97.2% (Pholiso e Ntle) | Feta (80-120% sepheo) | ||||
| TNF-α Spike Recovery (R%) | 134.1% (Non-Specific Cross-Talk) | 102.5% (Baseline Normalized) | Parallelism Linearity (R²) Moetsi oa li-Peptides tsa White Label
tr> |
Parallelism Linearity (R²) | 0.81 (Non-linear prozone shift) | 0.992 (Phahameng Linearity) | Feta (R² ≥ 0.98) |
Matšoao ana a matla a bonts'a hore na tlhakiso e potlakileng e kopantsoeng le tlatsetso ea non-ionic surfactant e khutlisetsa ho nepahala ha palo ka har'a mamello e amohelehang ea bioanalytical..
Mehlala e Sebetsang ea Boitokisetso le Mekhoa ea ho Fokotsa
Ho kenya tšebetsong sampole e matla ea pele ho kalafo le ts'ebeliso ea buffer ea assay ho fokotsa boholo ba lintho tsa khale tsa peptide le ECM hydrogel.
1. Mehato e 'meli ea Centrifugation le ECM Clarification
Li-supernatant tsa Organoid li lokela ho hlakisoa ka mehato e 'meli hang ka mor'a kotulo:
- Centrifugation ea lebelo le tlase: Spin supernatants ho 1,000 × g bakeng sa 10 metsotso ho 4 ° C ho ea ho lisele tse tsitsitseng tsa pellet le likaroloana tse kholo tsa organoid.
- Tlhaloso ea ECM e Phahameng ka ho Fetisisa: Fetisetsa holimo 80% ea supernatant to a fresh tube and centrifuge at 16,000 × g bakeng sa 15 metsotso ka 4°C, kapa ho feta ka tsela e tlase e tlamang 0.22\ µm filthara ea membrane ea PVDF. Mohato ona o tlosa li-micro-aggregates tsa Matrigel tse sa keneng tse bakang ho koaloa ha capillary le ho putlama ha lifaha ho Luminex fluidics..
2. Diluent Optimization ka Non-Ionic Surfactants le Blockers
Li-diluent tse tloaelehileng tsa assay li lokela ho tlatselletsoa ho hatella litšebelisano tsa ionic le hydrophobic lipakeng tsa synthetic peptides le microspheres.:
- Li-non-Ionic Surfactants: Eketsa 0.05%\ v/v Tween-20 kapa Triton X-100 ho fokotsa phallo ea hydrophobic ntle le ho hlakola li-antibodies.
- Li-Carrier Blockers: Kenyelletsa 1%\ w/v Bovine Serum Albumin (BSA) kapa 0.5%\ w/v casein ho nka libaka tse sa tobang tse tlamang carboxyl holim'a lifaha.
- Li-Heterophilic Blockers: Eketsa 100\ µg/mL e hloekisitsoeng e senang sesole sa 'mele ea ho itšireletsa mafung IgG kapa li-antibody tse thibelang tse fumanehang khoebong. (LGBT) ho fedisa tshitiso ya maqhama.
3. Ho Felisoa ha Label ea Pele ho Incubation
Bakeng sa lithuto tse sebelisang li-peptide tse nang le biotinylated kapa fluorophore-tagged, Leibole e setseng e sa sebetsanoang e tlameha ho tlosoa leq
Ho felisoa ha Biotin mahala: Fetisa setoko sa peptide ea biotinylated ka kholomo ea monomeric avidin Peptide Synthesis kapa etsa chromatography ea boholo-holo (SEC) ho netefatsa >99.5% bohloeki ba conjugate holim'a biotin ea mahala.
ka chromatography (SEC) ho netefatsa >99.5% bohloeki ba conjugate holim'a biotin ea mahala.
- Ho Tlosoa ha Dae mahala: Sebelisa reverse-phase solid-phase extraction (SPE) kapa 1 kDa spin-dialysis ho felisa FITC/Cy5 fluorophores mahala.
Bakeng sa liprothokholo tse qaqileng mabapi le kinetics ea ts'usumetso ea peptide le ho qoba ho tlala lethal dose e phahameng, sheba lingoliloeng ka optimization ea ts'usumetso ea peptide ho Luminex workflows.
Peptide Synthesis Ha matšoao a MFI a khelohileng kapa litekanyetso tse phahameng tsa morao li etsahala nakong ea profiling ea organoid cytokine, latela ts'ebetso ena e hlophisitsoeng ea tlhahlobo:
r nakong ea profiling ea organoid cytokine, latela ts'ebetso ena e hlophisitsoeng ea tlhahlobo:
[Aberrant Luminex MFI Signal Detected]
│
├── Question 1: Is MFI elevated in blank wells containing synthetic peptide alone?
│ ├── YES ──► Optical crosstalk or non-specific bead adsorption.
│ │ Action: Switch to non-overlapping fluorophore; add 0.05% Tween-20.
│ └── NO ──► Proceed to Question 2.
│
├── Question 2: Does serial dilution (1:2 to 1:16) yield non-linear increases in calculated concentration?
│ ├── YES ──► Prozone hook effect or ECM matrix suppression present.
│ │ Action: Assay samples at higher working dilution (e.g., 1:8).
│ └── NO ──► Proceed to Question 3.
│
├── Question 3: Is Spike Recovery (R%) in conditioned media < 80%?
│ ├── YES ──► SAPE depletion by free biotin or physical ECM coating.
│ │ Action: Perform streptavidin pre-clearing or 0.22 μm PVDF filtration.
│ └── NO ──► Assay is validated. Signal represents authentic cytokine response.
Ho hlahloba lintlha tsa tekheniki ka xMAP bead classification optics le SAPE khemikhale ea ho lemoha e thusa bafuputsi ho khetha litsamaiso tsa baqolotsi ba litaba tse lumellanang ha ba etsa liphanele tsa multiplex.
Maemo a Boleng ba Peptide bakeng sa Litaolo tsa Assay-Grade
Ho nepahala ha multiplex immunoassay ho itšetlehile haholo ka bohloeki le botšepehi ba sebopeho sa li-peptide tsa maiketsetso le litsamaiso tse sebelisoang.. Li-peptide tse tloaelehileng tsa boemo ba lipatlisiso hangata li na le li-reagents tse sa sebetsaneng, tatellano e fokoditsweng, mahala fluorophores, le ho lata li-endotoxin tse silafatsang likarabelo tsa setso sa organoid le ho bala ha immunoassay.
| Lipatlisiso tse Tloaelehileng-Kereiti ea Peptides Assay-Grade Synthetic Controls | Lintlha |
|---|---|
| Bohloeki | 80-90% (Li-truncations li teng) ► Bohloeki: >98% ka C18 RP-HPLC |
| Tikoloho Pi Of Peptide Supplier | Ho fihlela ho 5% mahala fluorophore ► Letšoao la mahala: <0.1% ka ESI-MS |
| Endotoxin | E sa hlalosoang (>10 EU/mg) ► Endotoxin: Pakiloeng <0.01 EU/mg |
| Tikoloho | Laeborari e tloaelehileng ► Tikoloho: Sehlopha 100 Kamore e Hloekileng |
Ho thibela tlhahiso ea cytokine ea maiketsetso, R&D bo-ramahlale ba lokela ho fana ka taolo ea li-peptide tse entsoeng ka tlas'a maemo a thata a Tiisetso ea Boleng:
- Netefatso ea Bohloeki: Bonyane >95-98% bohloeki bo tiisitsoe ke tlhahlobo ea C18 Reverse-Phase HPLC.
- Netefatso ya Bongata: Boemo bo phahameng ba Electrospray Ionization Mass Spectrometry (ESI-MS) ho netefatsa boitsebahatso ba tatelano e nepahetseng le ho se be teng ha dikgaoletso tse sa phethahalang.
- Label Purity: Fluorophore ea mahala kapa ho senyeha ha biotin mahala ho netefalitsoeng ho <0.1% ea boima bo felletseng.
- Tlhahiso ea Ultra-Sterile: Endotoxin e lekiloeng (<0.01 EU/mg) le ho etsoa ka hare ho Sehlopha 100 meaho ea ho hloekisa ho qoba ho tsosa likarabo tsa tlhaho tsa TLR ho li-neuroimmune organoids.
Ho sebelisa setifikeiti tloaelo ea synthetic peptide synthesis le sethala sa phetoho e netefatsa hore li-peptide tsa taolo ea maiketsetso, li-agonists tse fetotsoeng, 'me limolek'hule tsa tracer li fana ka ts'ebetso e felletseng ea batch-to-batch ntle le ho hlahisa lintho tsa khale tsa lik'hemik'hale ka har'a liphanele tse bonolo tsa multiplex..
Kakaretso le Lethathamo la Khetho ea Barekisi
Ho felisa tšitiso ea maiketsetso ea peptide lithutong tsa Luminex organoid ho hloka mokhoa o habeli: ho sebelisa lisebelisoa tse matla tsa pele ho kalafo le li-spike/taolo ea ho fola ka laboratoring ha u ntse u batla li-ultra-pure., assay-grade synthetic peptide reagents.
Sebelisa lethathamo le latelang la tlhahlobo ha u hlakisa li-peptide tsa maiketsetso tsa tloaelo le taolo ea netefatso bakeng sa lithuto tsa multiplex immunoassay:
| Mokhahlelo oa Tekolo | Standard Research-Kereiti | Tekanyetso-Mophato oa Taolo ea Tekanyetso | Tšusumetso ho Luminex Assay |
|---|---|---|---|
| HPLC Chemical Purity | 85-90% | ≥ 98% (C18 RP-HPLC e netefalitsoe) | E felisa ho fokotseha ha li-peptide tse fapaneng |
| Dmso Bakeng sa Peptides Laboratory E sa hlalosoang (>10 EU/mg)
tin Content |
Ha ea hlahlojoa (1-5%) | <0.1% ka ESI-MS / HPLC | E thibela ho fokotseha ha moqolotsi oa SAPE le crosstalk ea optical |
| Boemo ba Endotoxin | E sa hlalosoang (>10 EU/mg) | Pakiloeng <0.01 EU/mg | E thibela tlhahiso ea bohata ea TLR4-mediated cytokine |
| Taolo ea ho beleha | Lotho e sa hloekang | Sehlopha 100 tlhapi e hloekileng ea sterile synthesis | E sireletsa litloaelo tsa 3D tsa organoid ho lintho tsa khale tsa baktheria |
| Phetoho ea QC | Tlhahlobo ea boima ba motheo | Multi-angle LC-MS & Netefatso ya NMR | E fana ka tiisetso e nepahetseng ea sebaka se ikhethileng sa fluorophore/biotin |
| Setifikeiti sa Spike Control | Ha e fanoe | E fanoe ka CoA e khethehileng haholo & spike data | E nolofalletsa ICH Q2 e potlakileng(R1) netefatso ea teko |
Bakeng sa litlhoko tse rarahaneng tsa phetoho, ho kenyelletsa le tatellano ea li-label tse ngata, lipidation, kapa cyclic peptide controls, bafuputsi ba ka e sebelisa lits'ebeletso tse khethehileng tsa ho ngola ka fluorescent le biotin affinity labeling tšehelitsoe ke Sehlopha 100 tlhahiso ea li-peptide tsa kamore e hloekisitsoeng haholo lisebelisoa tsa ho netefatsa profiling ea multiplex cytokine e se nang liphoso.
