Ogo Peptide Reagent maka nyocha Brain-Penetrant NLRP3

Ihe achọrọ: Ihe Ị Chọrọ Tupu ịmalite

Nkọwa Peptide CoA na-amalite na akwụkwọ, ọ bụghị pipettes. Were ihe ise ndị a n'aka tupu ị tozuo ihe ọ bụla:

• A otutu-kpọmkwem akwụkwọ nke nyocha kegidere otu kpọmkwem ogbe. Akwụkwọ ahụ kwesịrị ịkọpụta njirimara MS site na nke a hụrụ n'ihe gbasara usoro ọmụmụ n'ime nnabata nke ekwuputara, HPLC dị ọcha na chromatogram na tebụl ntinye agbakwunyere, njirimara counterion, endotoxin dị na EU / mg nwere ntọala nyocha aha ya (LAL ma ọ bụ rFC), na ọnọdụ usoro nyocha: kọlụm, mobile na-adọ na gradient, eruba ọnụego, ogologo oge nchọpụta (I Q2(R2), 2023-11-30).

  

• Raw MS na HPLC faịlụ data, ọ bụghị naanị peeji nchịkọta, yabụ enwere ike wughachi ndekọ ahụ ma emechaa.

• Nsonaazụ endotoxin jikọtara na nlele ị ga-anwale n'ezie, ọ bụghị nwanne nza.

• Ihe ndekọ njikwa ekpuchi ụbọchị nnata, nchekwa okpomọkụ, na agbaze ọ bụla, na-eso ụkpụrụ ALCOA data-iguzosi ike n'ezi ihe (MHRA, 2018-03): ekenyenede, ziri ezi, dịkọrọ ndụ, mbụ, ziri ezi.

  

• Ngwakọta ihe nchekwa nyocha, edere ya, gụnyere pasent DMSO ikpeazụ.

Oge, Ihe isi ike, na ihe omuma

Mmefu ego awa abụọ ruo anọ maka otu nza nwere akwụkwọ zuru oke, ogologo oge ma ọ bụrụ na ịchọrọ nkwenye orthogonal ma ọ bụ na ị na-eru eru ọtụtụ nza n'otu oge. Ihe isi ike dị n'etiti. Ịkwesịrị ị na-agụ chromatogram RP-HPLC na tebụl ntinye, na-elele nkwenye MS mass megide uru usoro iwu, na ịkọwa akụkọ LAL ma ọ bụ rFC endotoxin.

Nzọụkwụ 1: Nyochaa nkwụsi ike nke usoro Peptide gafere ịdị ọcha aha

Na njedebe nke usoro a, ị ga-achọpụta na usoro peptide, ọ bụghị naanị chromatographic ịdị ọcha ya, dabara n'usoro e bu n'obi. Ọnụ ọgụgụ ịdị ọcha nke ≥95% HPLC na-akọwa ókè mpaghara kacha elu bụ peptide, Ọ bụghị nke peptide ọ bụ, na abụọ na-emekarị conflated.

peptides ihichapụ site na njikọta ezughị ezu bụ klaasị adịghị ọcha metụtara usoro na Fmoc SPPS., na-adị ugbu a n'ogo pasentị ruo-pasent na ihe adịghị mma ma sie ike ikewa n'ihi na ha dị iche naanị n'ụzọ aghụghọ na ebumnuche. (Cell-Peptide, Site na usoro gaa na Vial: Omenala Peptide Synthesis, 2026-07-13). Trifluoroacetate bụ ikpe dị iche kpamkpam: ọ bụ ihe mgbochi karịa usoro adịghị ọcha, ya mere ọ dịghị mgbe ọ na-egosi na-ezighị ezi usoro, mana ọ na-agbanwe ọdịnaya peptide net, o doro anya uka na mgbe ụfọdụ omume njigide, nke pụtara na a ga-edozirịrị ya tupu ị gbakọọ assay mass (Maka nkwenye maka nyocha na mgbanwe nke TFA, 2025-08).

Ebe nyocha: ihe nza ahụ ahụrụ na-adaba n'usoro iwu n'ime nnabata ahụ ekwuru na ịdekọla ọdịnaya mgbochi iche na ọdịnaya peptide.

Ịgụ Nkwenye MS na Mpaghara Mkpesa

Malite site n'ụdị ọnụ ọgụgụ ndị a hụrụ-na-atụ aro yana nnabata nke ndị na-ebubata ya kwuru. Otu egwuregwu dị n'ime mpio ahụ na-akwado ụdị kachasị; ọ naghị ewepụ adịghị ọcha isobaric na-ekpochapụ nke na-eme ionise n'otu m/z.

Ọdịnaya Counterion bụ ebe nkọwa peptide CoA na-adịkarị njọ. Na ọdịnaya TFA kwadoro na ọmụmụ mgbanwe, Nnu peptide dị ọcha na-ebu TFA- ruo n'ike 35% (w/w), na tụrụ ụkpụrụ nke 0.333 ± 0.008 mg TFA- kwa mg peptide nnu tupu mgbanwe, megide oke stoichiometric tụrụ anya nke ihe dịka 22-29% (w/w) dabere na ụgwọ (Maka nkwenye maka nyocha na mgbanwe nke TFA, 2025-08). Ọ bụrụ na ọnụọgụ nyocha gị sitere na arọ peptide nominal, oghere ahụ na-adaba ozugbo na molarity gị.

Maka ndụmọdụ: Dozie maka ọdịnaya mgbochi tupu ịgbakọ oke nyocha. Ọ bụrụ na nza chọrọ mgbanwe, otu nnyocha ahụ chọpụtara na otu okirikiri 10 mM HCl mgbanwe belatara TFA- n'okpuru oke nke ọnụọgụ nke ụzọ atọ a nwalere (<1% w/w) mgbe ịdị ọcha na-ejide n'elu 96% (Maka nkwenye maka nyocha na mgbanwe nke TFA, 2025-08). Rịba ama njedebe: RP-HPLC na-aga n'ihu na MS nke otu-ogbo nwere ike ha abụọ na-atụfu adịghị ọcha isobaric, ya mere mesoo ụzọ ụzọ dị ọcha dị ka ọ dị mkpa mana ezughị oke.

Mgbe ị ga-arịọ Peptide Mapping ma ọ bụ LC-MS/MS

Bawanye na usoro orthogonal mgbe usoro ahụ na-ebu ihe fọdụrụnụ nke isomerization ma ọ bụ ịgba ọsọ., ma ọ bụ mgbe agụọgụ ndu siri ike na mberede maka dose ị kwenyere na i bupụtara. Ihe kpatara ya bụ nsogbu na-ejikọta ọnụ: Usoro nwere njikọ chiri anya nke dị iche site na otu foduru nwere ike ịnọdụ ala n'okpuru otu ọnụ ọgụgụ kacha elu, ya mere, chromatogram enweghị ike ikewapụ ha n'agbanyeghị otú e si hazie njikọ (Cell-Peptide, 2026-07-13). Peptide maapụ ma ọ bụ LC-MS/MS na-edozi usoro n'onwe ya karịa ọnụ ọgụgụ kasị elu.

Nzọụkwụ 2: Jikwaa mkpokọta Peptide na nyocha CNS

Site na njedebe nke nzọụkwụ a, ị ga-enyocha nza gị maka nchịkọta ndị dịbu adị ma kpochapụ ha na-agbanweghị n'obere ọnụ nke ị na-ebuga na nyocha..

Kedu ihe kpatara usoro lipophilic Brain-Penetrant usoro jikọ onwe ya

Mkpokọta anaghị achọ motif pụrụ iche. A 2006 ọmụmụ nke Aβ42 hydrophobicity na nchịkọta dabere na usoro gosiri na generic hydrophobicity zuru ezu iji kwọọ mkpokọta: hydrophobic agbatị, ma Central ma ọ bụ C-terminal, nwere ike ịmị mkpụrụ fibrils, helix ngwugwu, ma ọ bụ mkpokọta aghara aghara, na-agafe n'etiti oke mmiri mmiri ma ọ bụ amorphous tupu fibril ọ bụla enyere iwu apụta.

Nchọta ahụ dị mkpa ebe a n'ihi na imepụta ụbụrụ na-abanye n'ụbụrụ na-akpali usoro n'ụzọ ahụ kpọmkwem. Mkpughe CNS na-akwado agwa lipophilic, ya mere, ihe onwunwe nke na-eme ka peptide bara uru bụ ihe na-eme ka ọ bụrụ nchịkọta. "Usoro anyị enweghị ebumnuche mkpokọta ama ama" abụghị ihe kpatara ịwụpụ ihuenyo ahụ..

Na-ekpochapụ mkpokọta na-enweghị ida dose gị

Gbaa nyocha mkpokọta orthogonal tupu nyocha ahụ. Thioflavin T na-akọ fibrils dị ka amyloid, ike ịgbasa ọkụ na-akọ nkesa oke-nha na hydrodynamic radius mgbanwe, na turbidity na-enye ihuenyo mgbasa ozi ngwa ngwa. Mgbe mgbaàmà pụtara, kpochapụ ihe site na 0.22 µm filtration ma ọ bụ centrifugation.

Wee lelee anya itinye uche. Nchacha nwere ike wepụ peptide yana nchịkọta, ya mere ngwaahịa nzacha nwere ike ọ gaghị adabakọ na ntinye na labelụ. Ọ nweghị iwu zuru ụwa ọnụ na-ebu amụma nke usoro ga-agbakọta, ọ bụ ya mere ihuenyo ahụ ji dị egwu kama ibu amụma.

Nzọụkwụ 3: Kwenye nkwado nke Peptide na nchekwa CSF-Mimetic

N'ọgwụgwụ nke usoro a, ị ga-enweta ọgwụ soluble edekọ na ebe nchekwa nyocha n'ezie, ọ bụghị nke aha. Peptide solubility na CSF-mimetic buffer bụ ihe atụpụtara nke oke gị na matriks gị, na ọdịiche dị n'etiti oke a tụrụ atụ na nke gbazere bụ ebe ọtụtụ njehie njirimara CNS na-amalite..

Kwadebe ngwaahịa ukwu na DMSO, wee tinye ya nwayọọ nwayọọ na dobe n'ime mmiri mmiri na-akpali akpali kama ịkụnye ya dị ka bolus. Ntuzi aka ndị na-ere ahịa na nkwadebe ngwaahịa ngwaahịa DMSO na-atụ aro aliquots otu-eji na pasent DMSO ikpeazụ dị ala, ma na-emeso turbidity anya dị ka ihe ịdọ aka ná ntị (Ntuziaka teknụzụ Sigma-Aldrich; mara na nke a bụ ntụzịaka ndị na-ere ahịa, na ndị na-ere ngwaahịa ihe mgbaze na reagent nwere mmasị azụmahịa na omume njikwa ha na-akwado). Ọ bụrụ na ngwọta igwe ojii, dose soluble dị n'okpuru aha, ihe ọ bụla akwụkwọ nyocha kwuru.

Ihe mejupụtara ihe nchekwa na elu ụlọ DMSO

Dakọtara ihe nchekwa ahụ na nyocha nke ị ga-agba ọsọ, ma dekọọ ihe mejupụtara ya na nọmba nza. Sistemụ CSF-mimetic a na-ahụkarị gụnyere CSF wuru na bicarbonate ma ọ bụ ntọala HEPES, na saline buffered phosphate emeziri maka pH na ike ionic. Nke ọ bụla dị iche n'otú o si anabata ihe mgbaze, ya mere, uko ụlọ bụ ihe onwunwe nke assay, ọ bụghị ọnụ ọgụgụ a kapịrị ọnụ.

Maka sistemu sel, ikpeazụ DMSO ịta nke 1% ma ọ bụ n'okpuru bụ oke ọrụ nkịtị, na nyocha nke na-anabata obere kwesịrị ijide n'elu ụlọ siri ike. Kpọmkwem uko ụlọ dịgasị iche site na nyocha na site na isi mmalite, ya mere guzobe ya maka ọgụgụ nke gị kama ibubata nọmba site na protocol ọzọ.

⚠️ Ịdọ aka ná ntị: Turbidity pụtara n'ezie soluble dose bụ n'okpuru n'ọnụ. Akọla ọnụ ọgụgụ a tụrụ atụ dị ka ntinye aka ewepụtara.

Ntụzi aka ifriizi-Thaw na ntinye otu-oji

Aliquoting otu eji eme ihe bụ mbelata ihe egwu, ọ bụghị iwu siri ike. N'ime ọmụmụ ihe mgbakasị oyi na-achịkwa nke ọma, Nhazi urughuru nwere ike itughari pụtara site n'ihe dị ka okirikiri ise n'ụfọdụ ebuka protein echekwabara (BSA na β-galactosidase, cycled n'etiti -80 Celsius C na 25 Celsius C maka 20 nkeji nke ọ bụla n'ime 100 mM sodium phosphate), ebe ụfọdụ obere ụmụ irighiri ihe na-egosi enweghị mfu mgbe okirikiri iri na otu gachara (ifriizi-na-emezi urughuru n'ọtọsị buffered, 2024 tupu ihe akaebe). Ihe akaebe ahụ sitere na ebuka protein kama ịbụ peptides, ọnweghịkwa oke okirikiri ụwa niile dị, ya mere were nchoputa ahụ dị ka ihe kpatara ị ga-eji na-atụgharị uche kama ịbụ ọnụ ụzọ ị nwere ike ịdabere na ya..

Nzọụkwụ 4: Tozuru Endotoxin maka Ogo Reagent Peptide na Nchọpụta Brain-Penetrant NLRP3

N'ọgwụgwụ nke usoro a, ị ga-enweta nsonaazụ endotoxin nke egosipụtara na nkeji ejikọtara na nlele ị nwalere n'ezie, na usoro nyocha na mgbake spike edere n'akụkụ ya. Nke ahụ bụ opekempe achọrọ iji rụọ ụka na peptide etinyeghị aka na ngụta mkpasu iwe gị.

Kedu ihe kpatara ngafe / ọdịda Endotoxin mkpesa dara ada nyocha CNS

“Nfefe” na asambodo nyocha na-agwa gị nsonaazụ dara n'okpuru oke onye ọzọ edobere maka ebumnuche dị iche. Ọ naghị agwa gị ole endotoxin dị na vial, yabụ enweghị ike ịtụgharị ya ka ọ bụrụ itinye uche na olulu mmiri gị ma ọ bụ anụmanụ gị.

Oghere ahụ dị mkpa n'ihi na microglia na-anabata LPS nke ukwuu, na LPS priming sochiri ihe mkpali nke abụọ dị ka nigericin na-ewepụta ngwa ngwa NLRP3 canonical.. Ya mere, peptide CNS emeru emeru nwere ike iwepụta ihe zuru oke, na-ekwenye ekwenye na-ere ọkụ na-agụ akwụkwọ na-enweghị onyinye sitere na usoro peptide n'onwe ya.

Mmetọ ahụ dịkwa ike ịhụ na data gị. LPS priming nke na-achọghị protein NLRP3 ọhụrụ na-anọgide na-atụ na obere oge tupu ọgwụgwọ ma na-anọgide na Nlrp3-/- macrophages megharịrị ya na onye nkwalite mebere. Ọ nweghị mbinye aka ederede pụtara na-egosi ya.

Nsonaazụ jikọtara otu, Spike Iweghachite, na njikwa obere endotoxin

Rịọ nsonaazụ na EU/mg, kegidere na nlele ule, na maka ndabere nyocha n'azụ ya. USP <85> ule endotoxins nke nje bacteria chọrọ LAL reagent akpọrọ sensitivity ọ bụghị ihe na-erughị 0.15 EU/ml, nwere oke edobere kwa monograph ma ọ bụ site na usoro K/M wee gosipụta dị ka EU/ml, EU / mg ma ọ bụ EU / unit. Ala nkwado ahụ dị mma karịa ihe ọrụ CNS chọrọ.

Ụdị nyocha-ọkwa na-eru ala. Ntụnyere LAL na rFC data uche tinye quntitation nso 0.005 EU/ml maka rFC na 0.01 EU/ml maka ụfọdụ ụdị LAL. Ebumnuche ịdị ọcha a na-ejikarị maka peptide reagents na cell dabere na ọrụ CNS dị n'okpuru 0.1 EU/ml ma ọ bụ n'okpuru 1 EU/mg. Were ọnụ ọgụgụ ahụ dị ka ebumnuche onye ọrụ, ọ bụghị oke ụgwọ. Ndị FDA 0.06 Ọnụ ụzọ EU/ml maka ngwaọrụ ndị na-akpọtụrụ CSF bụ naanị ntụnyere kọntaktị mmiri, Enweghị nkọwapụta peptide.

Ọkpụkpụ mgbake na-emechi akaghị. Na-enweghị ya ị nweghị ike ịma ma matriks ahụ kwụsịrị nyocha ahụ wee mepụta ọnụọgụ dị ala ụgha.

Ntugharị igodo: A na-eji nsonaazụ endotoxin mee ihe naanị ma ọ bụrụ na egosipụtara ya na nkeji ejikọtara na nlele nwalere, A na-edekọ usoro nyocha na mgbake spike.

Nzọụkwụ 5: Mkpọchi Lot Document na traceability

Ọrụ N'ọgwụgwụ nke usoro a, ị ga-ejide ndekọ nke nwere ike ịrụgharị ọnwa ole na ole gachara, ka onye na-agba ọsọ assay na-aga n'ihu na eri mbụ email apụọla.

Akwụkwọ nyocha nke na-akpọ naanị nọmba katalọgụ anaghị eme nke a. Ihe ị chọrọ bụ akwụkwọ ejikọtara na otu batch, na ubi ndị na-eme ka ọ na-ebu ibu bụ ndị mmadụ na-amali ma ha gụọ ya ngwa ngwa.

Ihe ngwugwu nyocha akọwapụtara nke ukwuu kwesịrị ịnwe

Asambodo nyocha nke akọwapụtara nke ọma kwesịrị ịkọ akụkọ, maka naanị ogbe ahụ: Amamihe MS nke a hụrụ n'ihe gbasara usoro ọmụmụ yana nnabata nke ekwuputara, HPLC dị ọcha na chromatogram na tebụl ntinye ya, njirimara counterion, endotoxin dị na EU / mg nwere ntọala nyocha aha ya, na ọnọdụ usoro nyocha (kọlụm, mobile na-adọ na gradient, eruba ọnụego, ogologo oge nchọpụta). Ogige ọ bụla na-aza ajụjụ ọdịda dị iche. Mass na-akwado usoro; Tebụl njikọta na-egosi ma ọnụ ọgụgụ ịdị ọcha sitere na ọnụ ọgụgụ dị ọcha ma ọ bụ ubu; counterion na-agwa gị ihe ọzọ dị na vial; EU/mg na-ejikọta nọmba endotoxin na dose ị nwere ike gbakọọ.

Nkọwa Peptide CoA bụ ebe ọtụtụ ụlọ nyocha na-efunahụ oge, n'ihi na pasent nke ịdị ọcha na-enweghị chromatogram ya enweghị ike ịnwapụta. Onye mmekọ njikọ ya na HPLC/MS n'ime ụlọ na ịmụ nwa QC nwere ike ịnye ngwugwu nyocha akọwapụtara nke ọma na-ekpuchi mpaghara ndị a., nke na-enyere aka mgbe ịchọrọ ọnọdụ usoro raw kama akara nchịkọta.

Ihe ize ndụ iweghachite n'ofe ọmụmụ ọtụtụ ọnwa

Ọmụmụ ihe na-aga ọnwa ole na ole ga-agafe nza, na ngafe na-adịkarịghị ahụ anya: vial ọhụrụ ahụ bịarutere, akara akara ahụ yiri otu, na ọ nweghị onye dekọtara na njirimara ogbe gbanwere.

Ndekọ n'ọmụmụ ihe malite njirimara ogbe, ngwungwu nyocha nyocha, na ụbọchị vial ọ bụla banyere na friza. Wee tinye ụkpụrụ ALCOA data-iguzosi ike n'ezi ihe na ndekọ reagent n'onwe ya: ekenyenede, ziri ezi, dịkọrọ ndụ, mbụ, ziri ezi, na raw data na mgbako chekwara n'akụkụ ntinye. Ọ bụrụ na abanyela nza mgbanwe etiti ọmụmụ ka ọ na-eme, enwere ike ịlele mgbanwe nzaghachi megide ndekọ reagent kama ị na-arụrịta ụka banyere emechaa. Peptide nza-na-nnọgidesi ike abụghị ihe ị nwere ike iche site na aha onye na-ebubata ya; ọ bụ ihe ndekọ nke gị ma ọ bụ akwụkwọ ma ọ bụ na ọ dịghị.

Nzọụkwụ 6: Njikwa ahaziri ma gbanwee ya

Site na njedebe nke nzọụkwụ a, ị ga-enwe nhazi njikwa nke na-ekewa mmetụta akara na mmetụta peptide, yabụ enweghị ike ị chefuo ihe ọgụgụ fluorescent ma ọ bụ mmekọrịta dị ka ihe dị ndụ.

Mgbe akara na-agbanwe nnwale ahụ

Mkpado fluorescent ma ọ bụ ihe jikọrọ ya bụ mgbanwe kemịkalụ, ọ bụghị onye na-ekiri ihe na-anọpụ iche. Ịtinye nnukwu fluorophore ma ọ bụ aka biotin na-agbanwe ịdị arọ molekụla, lipophilicity na nkesa ụgwọ, na ihe ndị ahụ na-achịkwa ike, aqueous solubility na ọbara-ụbụrụ mgbochi omume. Otu peptide akpọrọ nke nkewa dị iche na reagent enweghị akara nwere ike igosi mkpughe CNS gbanwere n'otu usoro aha., nke putara na analọg akpọnyere aha abụghị ezigbo nnọchi maka nke enweghị akara.

Nke a bụ akụkụ kachasị akọwapụtaghị nke usoro ọrụ. Ọtụtụ ọmụmụ CNS ebipụtara na-akọ ọkwa akara na obere ihe ọzọ, ya mere ubi nwere oke ntụnyere Ụlọ ahịa data gbasara ole mkpado enyere na-agbanwe ike ma ọ bụ ntinye ụbụrụ maka usoro enyere. Mesoo nha akara akara ka echiche iji nwalee, ọ bụghị ihe onwunwe eketa.

[Anya: osisi mkpebi, alaka na ma akara na-agbanwe ike, solubility, ma ọ bụ omume BBB, na-eduga na analọg akpọrọ, scramble akara, Analọgụ adịghị arụ ọrụ, ma ọ bụ ortholog na-enweghị mkpado]

Scramble, Analog adịghị arụ ọrụ, yana Njikwa Ortholog na-enweghị mkpado

Wulite njikwa njikwa gburugburu ihe reagents ọ bụla na-achịkwa, ma debe peptide na-enweghị akara na nnwale ebe ọ bụla nyocha nwere ike ịgụ ya ozugbo.

• Njikwa scramble (otu ihe mejupụtara, usoro enweghị usoro): na-achịkwa mmetụta na-adabereghị n'usoro dị ka akpụkpọ ahụ perturbation ma ọ bụ njikọ na-enweghị isi. Ọ naghị ejikwa kemịkalụ label, ya mere jiri otu akara na-agba ya ma ọ bụrụ na peptide akpọrọ bụ ihe nyocha gị.

• Analọgụ anaghị arụ ọrụ (otu ihe fọdụrụ dị egwu dochie): na-achịkwa itinye aka na ebumnuche dịka isi iyi nke mgbama. Kwenye na ngbanwe a na-ewepụ ọrụ na nyocha gị kama iche na ọ na-eme ya.

• ortholog na-enweghị mkpado ma ọ bụ nne na nna enweghị akara: na-achịkwa akara n'onwe ya dị ka ihe kpatara mmetụta ahụ anya. Ebe agụpụta chọrọ akara, Enwere ike ịme njikwa a naanị n'ime nyocha nke enweghị onwe ya.

Enweghị nkwekọrịta ọ bụla na otu njikwa kacha mma maka nyocha CNS nyere. Nhọrọ a dabere n'ihe ngụpụta nwere ike ịchọpụta yana ma akara akara ọ na-ebu ibu maka nha. Kwupụta echiche gị n'ụzọ ndị ahụ kama ịkpọta mgbakọ.

Nyochaa nsonaazụ gị: mgbama kwesịrị soro usoro nọ n'ọrụ wee pụọ na analọgụ anaghị arụ ọrụ. Ọ bụrụ na scramble na-emepụta otu mmetụta dị ka peptide ule, ma ọ bụ ọ bụrụ na akara reagents enweghị mkpado na-agbanwe, ị nwere akara ma ọ bụ mmetụta na-adabereghị na usoro, ọ bụghị nke ebumnuche-kpọmkwem.

Usoro mkpebi: Reagent Artifact vs. Ihe mgbaàmà ndu

Agụ CNS nke na-agagharị mgbe ọgwụgwọ peptide gasịrị nwere nkọwa abụọ nke ndị ndoro-ndoro anya: peptide mere ihe, ma ọ bụ reagent mere. Ọdịiche ahụ dị mkpa n'ihi na ha abụọ chọrọ nzaghachi dị iche. Ihe arịa pụtara na nnwale ahụ enweghị ike ịkọwa ya na reagent chọrọ nhazigharị; akara ngosi ndu putara na nchoputa a bu ihe di n'ezie na ihe ozo bu usoro oru. Tebụl dị n'okpuru maapụ a na-agụpụta ihe ị hụrụ na nlele reagent nwere ike ịkọwa ya, na n'ihi nke ga-ekpochapụ reagent.

Usoro Nnwale ọzọ Enyere iwu

Gbaa akwụkwọ ndenye ego n'usoro a. Nke ọ bụla n'ime ha na-ewepụ otu klaasị arịa dị iche iche, yabụ ọdịda n'oge na-azọpụta gị nlele na oge usoro ndị ọzọ ga-eri.

1. Lelee endotoxin site na mgbake spike. Microglia na-anabata LPS nke ukwuu, ya mere ihe eji eme ihe nwere ike iṅomi ezigbo mmetụta na-ere ọkụ. Mgbake spike na-agwa gị ma ihe nchekwa gị ma ọ bụ matriks na-egbochi nyocha ahụ, nke nọmba ngafe / ọdịda naanị enweghị ike.

2. Megharịa maka nchịkọta site na usoro orthogonal. Generic hydrophobicity zuru ezu iji kwọọ mkpokọta, na mkpokọta dị ka ihe pụtara ìhè mgbanwe ike kama dị ka adịghị ọcha dị ọcha.

3. Kwadoghachi dose soluble na nchekwa. Chọpụta na peptide agbazere nke ọma na ntinye ị were n'ezie, ọ bụghị na ngwaahịa ịta. Mmepụta Peptide

4. Weghachite nkwenye n'usoro site na usoro orthogonal. peptides ihichapụ bụ klaasị adịghị ọcha metụtara usoro, na ha nwere ike na-arụ akụkụ nke ọrụ nke onye ọnụ ọgụgụ dị ọcha na-agaghị ekpughe.

5. Tinyegharịa na nza ọhụrụ. Ọ bụrụ na agụpụta na-agbaso nza karịa dose, reagent bụ mgbanwe.

Mgbe mgbaàmà ahụ ga-adị ndụ ule ọzọ ọ bụla

Ọ bụrụ na mmetụta ahụ na-aga n'ihu site na ndenye ego ise niile, na-emeso ya dị ka o yikarịrị ka ndu. Nke ahụ bụ nkwupụta puru omume, ọ bụghị akwụkwọ. Enweghị ike ikpochapụ ụfọdụ ihe arụrụ arụ n'ụzọ zuru ezu site na nlele akụkụ reagent ọ bụla, na nyocha mkpokọta orthogonal tupu nyocha ahụ belata ejighị n'aka na-emechighị ya.. Ọrụ nke usoro ahụ bụ ime ka ihe ize ndụ fọdụrụnụ pụta ìhè, nke mere na onye na-agụ ala ga-amata nkọwa ndị ọzọ ị wepụrụ na nke ga-emeghe.

Mmejọ ndị a na-emekarị nke na-ebute njirimara ụgha

Ụdị ọdịda kachasị na-akpata abụghị peptide dị njọ. Ọ bụ dataset mara mma nke e wuru na reagent nke na-erubeghị eru, ebe a na-agụ ihe nrụpụta ihe dị ka ntinye NLRP3 wee gaa n'ihu n'ime nnwale ọzọ. Njehie bench anọ na-emekarị na-emepụta ọtụtụ n'ime njirimara ụgha ndị a.

Na-emeso ịdị ọcha HPLC dị ka ihe akaebe usoro

Njehie ahụ: nabata a 95% ma ọ bụ 98% Ọnụọgụ ịdị ọcha HPLC dị ka ihe akaebe na peptide bụ usoro ị nyere iwu.

Ihe mere o ji eme: HPLC na-ekewa site na hydrophobicity. Usoro ihichapụ, iberibe iberibe iberibe, ma ọ bụ diastereomer nwere otu ihe fọdụrụ n'ime agbụrụ nwere ike imekọrịta ihe na ebumnuche ma ka debanye aha dị ka otu ọnụ ọgụgụ dị ọcha.. Ọnụ ọgụgụ ịdị ọcha na-atụ arụmọrụ nkewa, ọ bụghị ụkpụrụ ntụkwasị obi.

Ihe ndozi ahụ: chọrọ nkwenye MS nke dabara na oke usoro ihe ọmụma monoisotopic, ma lelee ubi counterion, n'ihi na ihe fọdụrụ trifluoroacetate na-agbanwe ma uka na omume ndu. Ebe nyocha ahụ nwere mmetụta maka otu mgbanwe fọdụrụnụ, Rịọ maapụ peptide ma ọ bụ LC-MS/MS nkewa karịa nkwenye naanị oke.

Na-eleghara Ntugharị DMSO-to-Buffer

Njehie ahụ: Na-atụgharị ngwaahịa DMSO ozugbo n'ime ihe nchekwa nyocha ma na-eche na ntinye aha aha bụ nke ewepụtara ya.

Ihe mere o ji eme: lipophilic, usoro nke n'ụbụrụ nwere oke mmiri solubility. N'oke DMSO-to-buffer ha nwere ike ịpụ, na a na-agụkarị turbidity na-esi na ya pụta dị ka mkpọtụ nyocha nke anabatara karịa ka onye nyocha efu efu.

Ihe ndozi ahụ: mee dilution na CSF-mimetic buffer, nyochaa maka turbidity ma ọ bụ particulate na ikpeazụ ịta, ma kwado akụkụ nke soluble tupu ị kenye dose. Ọ bụrụ na ngwọta adịghị edozi, n'ezie itinye uche bụ n'okpuru ọnụ ọgụgụ n'agbanyeghị ihe ngụkọta oge na-ekwu.

Na-akọ akụkọ Endotoxin dị ka ngafe/ọdịda

Njehie ahụ: Ndekọ endotoxin dị ka "na-agafe nkọwapụta" ma na-aga n'ihu.

Ihe mere o ji eme: Edere asambodo ntọhapụ ọtụtụ maka mkpebi ntọhapụ, ọ bụghị maka nyocha nyocha. Nkwupụta ngafe/ọdịda anaghị ebu uru ọ bụla ejikọtara ọnụ, yabụ enweghị ike ịtụgharị ya ka ọ bụrụ itinye uche n'ime nyocha.

Ihe ndozi ahụ: Rịọ nsonaazụ na EU/mg ma ọ bụ EU/ml, kegidere na nlele ule, na-edekọ mgbake spike. Mgbe ahụ gbakọọ ihe oke peptide ahụ na-enye aka na ntinye uche gị na-arụ ọrụ. Ọtụtụ ihe na-agafe ntọhapụ ka nwere ike ịnye mgbama TLR4 na-agbagwoju anya na oke micromolar dị elu.

Na-eji Akụrụngwa ajụ oyi emegharị

Njehie ahụ: na-ewepụ otu aliquot ahụ n'ime friza maka oyiri ọ bụla n'ofe ọmụmụ ọtụtụ izu.

Ihe mere o ji eme: A na-emeso ịnya igwe na-agbaze oyi ka ihe na-adịghị njọ maka peptide "kwụsiri ike"., na aliquoting otu-eji dị ka ọrụ na-adịghị mkpa.

Ihe ndozi ahụ: aliquot na mbụ reconstitution na tụfuo mgbe otu ojiji. Nhazi urughuru na-agbakọta n'ofe okirikiri, na ngụkọta nke ntakiri bụ kpọmkwem ụdị ndị nwere ike chụpụ ọgụgụ na-ere ọkụ. Mara oke ebe a: A na-ewu akwụkwọ ndị na-agbaze oyi n'ahụ n'ọka protein, ọ bụghị peptides, na enweghị oke okirikiri okirikiri ụwa na-emetụta. Were ọnụọgụ okirikiri dị ka mgbanwe nke ị na-achịkwa wee dekọọ, ọ bụghị ọnụ ụzọ ị nwere ike ile anya elu.

Nyochaa nsonaazụ gị: Ebe nlele ntozu

Emechaala ntozu mgbe ị nwere ike inye onye nyocha otu ndekọ akọwapụtara nke nwere ihe isii niile dị n'okpuru. A na-enyocha nke ọ bụla megide akwụkwọ, ọ bụghị ebe nchekwa ihe onye na-ere ahịa kwuru na ekwentị.

• njirimara: ihe MS-kwetara molekul nke dabara na usoro ị nyere iwu, gbakwunyere nlele orthogonal (Maapụ peptide ma ọ bụ LC-MS/MS) ebe ọ bụla usoro ma ọ bụ mgbanwe nyere ikike otu.

• Mkpokọta: nsonaazụ ihuenyo kpochapụrụ na ntinye uche gị na-arụ ọrụ, na usoro na ntinye uche edere.

• Solubility: dose soluble edekọtara na nchekwa CSF-mimetic gị, gụnyere pasent DMSO ikpeazụ.

• Endotoxin: a unit-kegide n'ihi (EU/mg ma ọ bụ EU/ml) site na mgbake spike nke na-akwado nyocha na matriks gị.

• Njikwa: a kọwara set nke scramble, Analọgụ adịghị arụ ọrụ, na mkpado ortholog reagents na-enweghị mkpado, onye ọ bụla tozuru oke na ọkọlọtọ peptide ule.

• Nchọgharị: otutu nọmba, ụbọchị mwepụta, na ngwugwu nyocha nke jikọtara ubi ọ bụla dị n'elu na nza ahụ.

Ebumnuche a gbatịa bụ ịgbatị nke a site na ndekọ ọ bụla n'ime ndekọ ntozu reagent ọkwa ọmụmụ: otu ahịrị kwa nza, otu kọlụm kwa ebe nlele, ya mere ọmụmụ ihe ọtụtụ ọnwa nwere ike igosi na nleba anya na batch ọ bụla banyere nyocha n'okpuru otu ọnọdụ ruru eru..

[Anya: tupu emechaa, akụkụ aka ekpe na-egosi Nzọụkwụ 1 steeti (a CoA na pasent ịdị ọcha na ihe ọ bụla ọzọ); otu nri aka nri na-egosi ndekọ emechara yana njirimara, nchịkọta, solubility, endotoxin, njikwa, na mpaghara traceability jupụtara na]

Ọ bụrụ na ịchọrọ ka ewepụtara ndekọ ahụ kama ikpokọta ya, Rịọ ngwugwu nyocha akọwapụtara nke ọma maka usoro ị na-agba, ma ọ bụ mepee mkparịta ụka nka na omenala ma ọ bụ gbanwetụrụ chọrọ peptide. MOL Mgbanwe na-ebipụta dị ka onye na-ere peptide ma nwee mmasị azụmahịa na ụkpụrụ mma peptide; Ebe nlele ndị dị n'elu bụ otu ndị anyị ga-atụ anya ka onye nyocha ga-etinye aka na anyị.

Nyochaa ya bụ [Aha], Ph.D., Analytical Chemistry.

Inweta ogo peptide reagent maka nyocha NLRP3 ụbụrụ na-abanye n'ụbụrụ n'ụkpụrụ nwere ike ịgbachitere bụ mmega akwụkwọ dị ka nke nyocha.: ndị nyocha na-agwa gị ihe dị na vial, na ndekọ bụ ihe na-ahapụ onye ọ bụla ọzọ kwadoro ya.

Ajụjụ a na-ajụkarị

Ogologo oge ole ka iru eru peptide reagent na-ewe?

Mee atụmatụ izu abụọ ma ọ bụ anọ site na nnata nza ruo na ndekọ ntozu aka. Ụdị mgbanwe atọ na-ebugharị windo ahụ: ma ọ dị mkpa usoro usoro orthogonal dịka peptide mapping ma ọ bụ LC-MS/MS, ma ule endotoxin na-agba n'ime ụlọ ma ọ bụ na-aga ụlọ nyocha nkwekọrịta, ma ọ bụrụ na a ga-ebupụta nza ọhụrụ. Ọ bụrụ na nza na-abịa na ngwugwu nyocha zuru oke yana ikike endotoxin dị n'ime ụlọ, ọrụ ahụ na-agbakọta na njedebe nke ala.

Enwere m ike dochie obere ihe mgbochi NLRP3 dị ka njikwa dị mma?

Naanị dị ka njikwa ọgwụ ọgwụ, ọ bụghị dị ka a reagent iru eru dochie. Akwụkwọ ndị bụ isi na-emepe obere ihe mgbochi NLRP3, ya mere a mara ha nke ọma maka itinye aka n'ụzọ, mana ha agwaghị gị ihe ọ bụla gbasara ma reagent peptide na-akpa agwa. Gbaa ha abụọ: obere molekul na-akwado nyocha na-aza, na nza peptide na-egosi na reagent gị dị ọcha.

Kedu ihe m ga-eme ma ọ bụrụ na peptide m daa na ihuenyo nchịkọta?

Megharịa ma ọ bụ centrifute ngwaahịa ahụ, wee lelee ntinye uche tupu i were na nza ahụ enweghị ike iji ya. A 0.22 Nzọụkwụ nzacha µm na-ekpochapụ mkpokọta ndị dịbu adị, mana ị ga-atụgharịgharị uche ma emesịa n'ihi na ihe na-efunahụ nzacha. Ọ bụrụ na sample ka na-agbakọta, gbanwee ọnụego mgbanwe DMSO-to-buffer ma ọ bụ rịọ nza dị iche.

Bụ peptide akpọnyere aha bụ ihe ngbanwe a na-anabata maka reagent enweghị akara?

Ọ dabere ma akara ahụ na-agbanwe ike, solubility, ma ọ bụ omume mgbochi ụbụrụ ọbara. Fluorophore ma ọ bụ mkpado nwere ike ịgbanwe ha atọ, ya mere kọwapụta ihe analọk akpọrọ iche iche kama iche na ha nhata. Jiri peptide akpọpụtara maka nchọpụta yana reagenti enweghị akara maka ọgụgụ isi.

Kedu ka m ga-esi tozuo peptide maka ọmụmụ ihe na-aga ogologo oge karịa otu nza?

Dekọọ nọmba nza na mmalite ọmụmụ, wee ruo eruo nza ọhụrụ ọ bụla megide otu ebe nlele ndị ị na-eji na mbụ. Akwado nza site n'ịgba ntụnyere n'akụkụ n'akụkụ n'otu efere nyocha tupu ịgbanwee. Detuo mgbanwe ọ bụla n'etiti ọmụmụ ihe, gụnyere data ntozu, ya mere a na-achọpụta mgba ọkụ na ndekọ.