PYRALID MOTH EGG, PRODUCING METHOD THEREOF, AND METHOD FOR PRODUCING RECOMBINANT PROTEIN BY USING PYRALID MOTH EGG

Abstract

The present invention relates to means and methods for increasing the efficiency of recombinant protein expression and, more particularly, to means and methods for optimizing the industrial production of recombinant proteins in pyralid moths eggs (which are insect pests of stored foods), especially Mediterranean flour moth eggs (Ephestia kuehniella). Furthermore, the present invention relates to the pyralid moths eggs itself which contains a recombinant baculovirus and, infection of recombinant baculovirus into pyralid moths eggs and, transformation or transduction or transfection by recombinant baculoviruses or bacmids. In addition, it relates to an appropriate device for carrying out the method of the present invention.

Claims

1. A pyralid moth egg belonging to any one species selected from a group consisting of: Meal moth (Pyralis farinalis), Stored nut moth (Paralipsa gularis), Indianmeal moth (Plodia interpunctella), Tea Tabby (Aglossa dimidiatus), Rice moth (Corcyra cephalonica), Mediterranean flour moth (Ephestia kuehniella), Cacao moth (Ephestia elutella), and Almond moth (Cadra cautella) and, the pyralid moth egg comprising at least one of recombinant baculovirus and bacmids comprising a nucleic acid sequence encoding a recombinant protein derived from Autographa californica multinuclear polyhedrosis virus (AcMNPV).

2. The pyralid moth egg according to claim 1, wherein the recombinant protein is selected from a group consisting of: subunit monomeric vaccine, subunit multimeric vaccine, virus like particle, therapeutic protein, antibody, enzyme, cytokine, blood clotting factor, anticoagulant, receptor, hormone, diagnostic protein reagents, and green fluorescent protein (GFP) and, the pyralid moth egg comprising the recombinant protein which is not an endogenously produced protein by an egg.

3. A method, comprising: providing a pyralid moth egg belonging to any one species selected from a group consisting of: Meal moth (Pyralis farinalis), Stored nut moth (Paralipsa gularis), Indianmeal moth (Plodia interpunctella), Tea Tabby (Aglossa dimidiatus), Rice moth (Corcyra cephalonica), Mediterranean flour moth (Ephestia kuehniella), Cacao moth (Ephestia elutella), and Almond moth (Cadra cautella), wherein the pyralid moth egg is provided by: providing the pyralid moth egg as surrounded by an eggshell having a multilayer structure of a vitelline membrane, a waxy layer and a chorionic layer; treating the pyralid moth egg with a nontoxic chemical to remove the chorionic layer from the pyralid moth egg surrounded by the eggshell; treating the pyralid moth egg with a nontoxic composition to remove the waxy layer from the pyralid moth egg; and collecting the pyralid moth egg having the chorionic layer and the wax layer of eggshell removed and a disinfected surface.

4. A method for producing at least one recombinant protein, comprising: providing a pyralid moth egg having a chorionic layer and a wax layer of an eggshell of the pyralid moth egg removed and a disinfected surface, the pyralid moth egg belonging to any one species selected from a group consisting of: Meal moth (Pyralis farinalis), Stored nut moth (Paralipsa gularis), Indianmeal moth (Plodia interpunctella), Tea Tabby (Aglossa dimidiatus), Rice moth (Corcyra cephalonica), Mediterranean flour moth (Ephestia kuehniella), Cacao moth (Ephestia elutella), and Almond moth (Cadra cautella); inoculating recombinant baculovirus by spraying a liquid containing the recombinant baculovirus onto the pyralid moth egg or soaking the pyralid moth egg in the liquid containing the recombinant baculovirus; incubating the pyralid moth egg as inoculated for a predetermined amount of time to express the at least one recombinant protein; collecting the pyralid moth egg as incubated comprising the at least one recombinant protein; harvesting the at least one recombinant protein from the pyralid moth egg; and producing a purified recombinant protein by purifying the at least one recombinant protein.

5. The method of claim 3, wherein the nontoxic chemical is 3% sodium hypochlorite.

6. The method of claim 3, wherein the nontoxic composition is 90% D-limonene+5% Cocamide DEA+5% ethoxylated alcohol.

7. The method of claim 4, wherein the recombinant baculovirus is derived from Autographa californica multinuclear polyhedrosis virus (AcMNPV).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. 1 is a diagram showing a whole process for producing a recombinant protein by inoculating a recombinant baculovirus vector derived from AcMNPV to the pyralid moths eggs (which are insect pests of stored foods) according to an embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS

[0022] 1: Process of removing the chorionic layer and wax layer from eggshell of pyralid moths eggs [0023] 2: Process of inoculation by spraying or soaking recombinant baculovirus into pyralid moths eggs, and process of expression a recombinant protein [0024] 3: Process of producing products by harvesting and purifying recombinant proteins from pyralid moths eggs

DETAILED DESCRIPTION

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The same reference numerals are used throughout the drawings for portions having similar functions and functions.

[0026] Incidentally, including an element means that it may include other elements, not excluding other elements unless specifically stated otherwise.

[0027] FIG. 1 is a diagram showing a whole process for producing a recombinant protein by inoculating a recombinant baculovirus vector derived from AcMNPV to the pyralid moths eggs according to an embodiment of the present invention. As shown in FIG. 1, the production of recombinant proteins in the pyralid moths eggs according to the embodiment of the present invention may be composed of the following processes. The process of removing the chorionic layer and wax layer from eggshell of pyralid moths eggs (1), process of inoculation by spraying or soaking recombinant baculovirus into pyralid moths eggs, and process of expression a recombinant protein (2), process of producing products by harvesting and purifying recombinant proteins from pyralid moths eggs (3).

[0028] The process (1) of removing the chorionic layer and wax layer from eggshell of pyralid moths eggs of the present invention, which one are selected from the group consisting of Meal moth (Pyralis farinalis), Stored nut moth (Paralipsa gularis), Indianmeal moth (Plodia interpunctella), Tea Tabby (Aglossa dimidiatus), Rice moth (Corcyra cephalonica), Mediterranean flour moth (Ephestia kuehniella), Cacao moth (Ephestia elutella), and Almond moth (Cadra cautella) and, after mass rearing insects belonging to the pyralid moths (which are insect pests of stored foods), pyralid moths eggs separated through egg collection device and it supplied in large quantities and, preferably, pyralid moths eggs belonging to the species Mediterranean flour moth is mass produced and it supplied.

[0029] And above-mentioned pyralid moths eggs surrounded by an eggshell having a multilayer structure of a vitelline membrane, a waxy layer and a chorionic layer is treated with a nontoxic chemical to remove chorionic layer of the outermost layer, preferably treated with 3% sodium hypochlorite to remove chorionic layer. In addition, above-mentioned pyralid moths eggs (chorionic layer is removed) is treated with a nontoxic composition to remove wax layer, preferably treated with embryo permeabilization solvent (EPS; consisting of 90% D-limonene+5% Cocamide DEA+5% ethoxylated alcohol) to remove wax layer.

[0030] Finally, the chorionic layer and wax layer of eggshell are removed and the surface-disinfected pyralid moths eggs and, after being packaged in a sterile container that prevents contamination from the outside but has a ventilation structure for breathing and internal gas exchange and, it is stored at low temperature condition of 48 C., preferably, in the species Mediterranean flour moth, pyralid moths eggs (chorionic layer and wax layer of eggshell are removed) are stored in a sterilized container with a ventilation structure at low temperature condition of 48 C. At above-mentioned low temperature condition of about 48 C., pyralid moths eggs can be stored for up to about 4 weeks, it is possible to supply to all over the world through refrigerated transport using aircraft.

[0031] The recombinant protein of the present invention is preferably selected from the group consisting of subunit monomeric vaccine, subunit multimeric vaccine, virus like particle, therapeutic protein, antibody, enzyme, cytokine, blood clotting factor, anticoagulant, receptor, hormone, diagnostic protein reagents, and the green fluorescent protein (GFP).

[0032] In a preferred embodiment, the recombinant protein is a virus-like particle protein, which is preferably selected from the group consisting of:

[0033] (a) Porcine circo virus capsid protein, preferably from porcine circovirus type 2 (e.g., SEQ ID NO.: 26),

[0034] (b) Foot and mouth disease virus VP1, VP3 or VP0 protein,

[0035] (c) Canine parvovirus VP1 and VP2 proteins,

[0036] (d) Porcine parvovirus VP1 and VP2 proteins,

[0037] (e) Human norovirus (genogroup I or II) capsid protein,

[0038] (f) Calicivirus capsid protein,

[0039] (g) Human papillomavirus L1 protein, preferably from human papillornavirus 16,

[0040] (h) Hepatitis E protein E2,

[0041] (i) Infectious bursal disease virus VP1, VP2 and VP3 proteins,

[0042] (j) Astrovirus ORF2-encoded proteins,

[0043] (k) Influenza virus HA (e.g., SEQ ID NO.: 30), NA and M1 proteins,

[0044] (1) Hepatitis B core and surface antigens,

[0045] (m) Rabbit calici virus VP60 protein, preferably from rabbit haemorrhagic disease viruses RHDVb and RHDVG1 (e.g., SEQ ID NOs.: 32 and 33),

[0046] (n) Human parvovirus VP1 and VP2 proteins

[0047] For instance, the recombinant protein may be:

[0048] Porcine circovirus capsid protein, preferably from porcine circovirus type 2, which is, for example, represented by the amino acid sequence of SEQ ID NO.: 26 or encoded by the nucleic acid sequence of SEQ ID NO.: 25.

[0049] Foot and mouth disease virus (FMDV) VP1, VP3 and VP0 protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0050] FMDV serotype 0 complete genome: GenBank JX570650.1 [0051] FMDV serotype A complete genome: GenBank HQ832S92.1 [0052] FMDV serotype C complete genome: GenBank AYS93810.1 [0053] FMDV serotype SAT 1 complete genome: GenBank AY593846.1 [0054] FMDV serotype SAT 2 complete genome: GenBank JX014256.1 [0055] FMDV serotype ASIA 1 complete genome: GenBank HQ631363.1

[0056] Canine parvovirus VP1 and VP2 protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0057] Canine parvovirus VP1 gene for capsid protein VP1, partial cds. strain 1887/f/3: GenBank AB437434.1 [0058] Canine parvovirus VP1 gene for capsid protein VP1, partial cds. strain 1887/M/2: GenBank AB437433.1 [0059] Canine parvovirus VP2 gene, complete cds. strain HNI-2-13: GenBank AB120724.1 [0060] Canine parvovirus VP2 gene, complete cds. strain HNI-3-4: GenBank AB120725.1 [0061] Canine parvovirus VP2 gene, complete cds. strain HNI-3-11: GenBank AB120726.1 [0062] Canine parvovirus VP2 gene, complete cds. strain HNI-4-1: GenBank AB120727.1 [0063] Canine parvovirus VP2 gene, complete cds. strain HNI-1-18: GenBank AB120728.1 [0064] Canine parvovirus VP2 protein (VP2) gene, complete cds.: GenBank DQ354068.1 [0065] Canine parvovirus VP2 gene, complete cds. strain HCM-6: GenBank AB120720.1 [0066] Canine parvovirus isolate Taichung VP2 gene, complete cds.: GenBank AY869724.1 [0067] Canine parvovirus VP2 gene, complete cds. strain HCM-8: GenBank AB120721.1 [0068] Canine parvovirus type 1 proteins VP1 and VP2: GenBank AB518883.1 [0069] Canine parvovirus type 2a VP1 and VP2: GenBank M24003.1 [0070] Canine parvovirus type 2b VP2: GenBank FJ005265.1 [0071] Canine parvovirus Type 2c VP2: GenBank FJ005248.1

[0072] Porcine parvovirus VP1 and VP2 protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0073] Porcine parvovirus strain 693a: GenBank JN400519.1 [0074] Porcine parvovirus strain 8a: GenBank JN400517.1

[0075] Human parvovirus VP1 and VP2 protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0076] Human parvovirus B19 VP1 complete cds.: GenBank AF264149.1 [0077] Human parvovirus B19 isolate Vn115 NS1 (NS1), 7.5 kDa protein (NS1), VP1 (VP1), 9.5 kDa protein (VP1), and VP2 (VP2) genes, complete cds.: GenBank DQ357065.1 [0078] B19 virus isolate FoBe VP1 (VP1) and VP2 (VP2) genes, complete cds.: GenBank AY768535.1 [0079] B19 virus isolate Br543 NS1 (NS1), VP1 (VP1), and VP2 (VP2) genes, complete cds.: GenBank AY647977.1 [0080] Human parvovirus 4 isolate VES065CSF NS1, VP1, and VP2 genes, complete cds.: GenBank HQ593532.1 [0081] Human parvovirus 4 isolate VES085CSF NS1 gene, partial cds. and VP1 and VP2 genes, complete cds.: GenBank HQ593531.1 [0082] Human parvovirus B19 strain BB-2 NS1, VP1, and VP2 genes, complete cds.: GenBank KF724387.1

[0083] Human norovirus (genogroup I or II) capsid protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0084] Norwalk virus: GenBank M87661, NP056821 [0085] Southampton virus: GenBank L07418 [0086] Mexico virus: GenBank U22498 [0087] Seto virus: GenBank AB031013 [0088] Chiba virus: GenBank AB042808 [0089] Lordsdale virus: GenBank X86SS7 [0090] Snow Mountain virus: GenBank U70059 [0091] Hawaii virus: GenBank U07611

[0092] Rabbit haemorrhagic disease virus VP60 protein, the sequence of which is indicated or can be derived, for example, from the following sequence: [0093] RHDV AST/89 complete genome: GenBank Z49271.2 [0094] RHDV N11 complete genome: GenBank KM878681.1 [0095] RHDV CBVali6 complete genome: GenBank KM979445.1 [0096] SEQ ID NO.: 32 [0097] SEQ ID NO.: 33

[0098] Human papillomavirus L1 protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0099] HPV 6: GenBank JN252323.1 [0100] HPV 11: GenBank JQ773411.1 [0101] HPV 16: GenBank DQ155283.1 [0102] HPV 18: GenBank FJ528600.1

[0103] Hepatitis E virus E2 protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0104] Hepatitis E virus, complete genome: NCBI Reference Sequence NC001434.1 [0105] Swine hepatitis E virus isolate ITFAE11 capsid protein gene: GenBank JN861806.1

[0106] Infectious bursal disease virus VP1, VP2 and VP3 proteins, the sequence of which is indicated or can be derived, for example, from the following sequences: [0107] Infectious bursal disease virus VP1 (VP1) gene, complete cds.: GenBank AY099457.1 [0108] Infectious bursal disease virus isolate PT VP1 gene, complete cds.: GenBank DQ679814.1 [0109] Infectious bursal disease virus isolate OE/G2 VP1 gene, complete cds.: GenBank DQ679813.1 [0110] Infectious bursal disease virus isolate OA/G1 VP1 gene, complete cds.: GenBank DQ679812.1 [0111] Infectious bursal disease virus isolate HOL VP1 gene, complete cds.: GenBank DQ679811.1 [0112] Infectious bursal disease virus strain TL2004 VP1 gene, complete cds.: GenBank DQ118374.1 [0113] Infectious bursal disease virus isolate CA-K785 VP1 gene, complete cds.: GenBank JF907705.1 [0114] Infectious bursal disease virus isolate D495 VP1 gene, complete cds.: GenBank JF907704.1 [0115] Infectious bursal disease virus strain A-BH83 VP1 mRNA, complete cds.: GenBank EU544149.1 [0116] Infectious bursal disease virus strain Cro-Pa/98 VP1 gene, complete cds.: GenBank EU184690.1 [0117] Infectious bursal disease virus VP2 mRNA, complete cds.: GenBank AY321509.1 [0118] Infectious bursal disease virus VP2, VP3, VP4 genes, complete cds.: GenBank M97346.1 [0119] Infectious bursal disease virus VP2 gene, complete cds.: GenBank AF508177.1

[0120] Calicivirus capsid protein, the sequence of which is indicated or can be derived, for example, from the following sequences: [0121] Feline calicivirus capsid protein gene, complete cds.: GenBank L09719.1 [0122] Feline calicivirus capsid protein gene, complete cds.: GenBank L09718.1 [0123] Human calicivirus HU/NLV/Wortley/90/UK RNA for capsid protein (ORF2), strain HU/NLV/Wortley/90/UK: GenBank AJ277618.1 [0124] Human calicivirus HU/NLV/Thistlehall/90/UK RNA for capsid protein (ORF2), strain HU/NLV/Thistlehall/90/UK: GenBank AJ277621.1 [0125] Human calicivirus HU/NLV/Valetta/95/Malta RNA for capsid protein (ORF2), strain HU/NLV/Valetta/95/Malta: GenBank AJ277616.1 [0126] Human calicivirus NLV/Stav/95/N or capsid protein gene, complete cds.: GenBank AF145709.1 [0127] Bovine enteric calicivirus strain Bo/CV500-OH/2002/US capsid protein gene, complete cds.: GenBank AYS491SS.1 [0128] Human calici virus NLV/Mora/97/SE capsid protein gene, complete cds.: GenBank AY081134.1 [0129] Human calicivirus NLV/Potsdam 196/2000/DE capsid protein gene, complete cds.: GenBank AF439267.1 [0130] Human calicivirus NLV/1581-01/SWE capsid protein gene, complete cds.: GenBank AY247442.1 [0131] Human calicivirus Hu/NLV/GII/MD134-10/1987/US capsid protein gene, complete cds.: GenBank AY030313.1

[0132] Astrovirus ORF2-encoded proteins, the sequence of which is indicated or can be derived, for example, from the following sequences: [0133] Porcine astrovirus 4 ORF1b gene, partial cds. and ORF2 gene, complete cds.: GenBank JX684071.1 [0134] Astrovirus MLB1 HK05, complete genome: NCBI Reference Sequence NC014320.1 [0135] Astrovirus wild boar/WBAstV-1/2011/HUN, complete genome: NCBI Reference Sequence NC016896.1 [0136] Human astrovirus BF34, complete genome: NCBI Reference Sequence NC024472.1 [0137] Astrovirus MLB1 strain Hu/ITA/2007/PR326/MLB1 RNA-dependent RNA polymerase (ORF1b) gene, partial cds. and capsid protein (ORF2) gene, complete cds.: GenBank KF417713.1 [0138] Human astrovirus 5 strain Hu/Budapest/HUN5186/2012/HUN nonstructural protein (ORF1a) and nonstructural protein (ORF1b) genes, partial cds. and capsid protein (ORF2) gene, complete cds.: GenBank KF157967.1 [0139] Human astrovirus 1 isolate Shanghai capsid protein (ORF2) gene, complete cds.: GenBank FJ792842.1 [0140] Human astrovirus type 8 orf2 gene for capsid protein: GenBank Z66541.1

[0141] Influenza virus HA, NA and M1 proteins, the sequence of which is indicated or can be derived, for example, from the following sequences: [0142] SEQ ID NO.: 30 [0143] Influenza A virus (A/duck/Chiba/25-51-14/2013(H7N1)) HA gene for hemagglutinin, complete cds.: GenBank AB813060.1 [0144] Synthetic construct hemagglutinin (HA) mRNA, complete cds.: GenBank DQ868374.1 [0145] Influenza virus A (A/swine/Shandong/2/03(H5N1)) hemagglutinin (HA) gene, complete cds.: GenBank AY646424.1 [0146] cDNA encoding HA of influenza type A: GenBank E01133.1 [0147] Influenza A virus (A/swine/Korea/5452/2004(H9N2)) NA gene, complete cds.: GenBank AY790307.1 [0148] Influenza A virus (A/Thailand/2(SP-33)/2004(H5N1)) neuraminidase (NA) gene, complete cds.: GenBank AYSSS152.3 [0149] Influenza A virus (A/swine/Binh Doung/0216/2010(H1N2)) NA gene for neuraminidase, complete cds.: GenBank AB628082.1 [0150] Influenza A virus (A/chicken/Jalgaon/8824/2006(H5N1)) neuraminidase (NA) gene, complete cds.: GenBank DQ887063.1 [0151] Influenza A virus SC35M M2 and M1 genes, complete cds.: GenBank DQ266100.1 [0152] Influenza virus type/Leningrad/134/47/57 (H2N2) M1 and M2 RNA, complete cds.: GenBank M81582.1 [0153] Influenza A virus SC35M M2 and M1 genes, complete cds.: GenBank DQ266100.1 [0154] Influenza A virus (A/Tochigi/2/2010(H1N1)) M2, M1 genes for matrix protein 2, matrix protein 1, complete cds.: GenBank AB704481.1

[0155] Hepatitis B core and surface antigens, the sequence of which is indicated or can be derived, for example, from the following sequences: [0156] Hepatitis B virus strain HBV248 precore protein and core protein genes, complete cds.: GenBank KP857118.1 [0157] Hepatitis B virus strain HBV401 precore protein and core protein genes, complete cds.: GenBank KP857113.1 [0158] Hepatitis B virus strain HBV403 precore protein and core protein genes, complete cds.: GenBank KP857068.1 [0159] Hepatitis B virus S gene for hepatitis B surface antigen, partial cds. isolate B0503327(PTK): GenBank AB466596.1

[0160] The process (2) of inoculation by spraying or soaking recombinant baculovirus into pyralid moths eggs, and process of expression a recombinant protein of the present invention, which one are selected from the group consisting of Meal moth (Pyralis farinalis), Stored nut moth (Paralipsa gularis), Indianmeal moth (Plodia interpunctella), Tea Tabby (Aglossa dimidiatus), Rice moth (Corcyra cephalonica), Mediterranean flour moth (Ephestia kuehniella), Cacao moth (Ephestia elutella), and Almond moth (Cadra cautella) and, belonging to the pyralid moths (which are insect pests of stored foods). And the chorionic layer and wax layer of eggshell are removed and the surface-disinfected pyralid moths eggs and, after being packaged in a sterile container with a ventilation structure, it is stored at low temperature condition of 48 C., and it supplied. Preferably, in the species Mediterranean flour moth, pyralid moths eggs (chorionic layer and wax layer of eggshell are removed) are stored in a sterilized container with a ventilation structure at low temperature condition, and it supplied.

[0161] And the recombinant baculovirus (derived from Autographa californica multinuclear polyhedrosis virus; AcMNPV) is sprayed onto the above-mentioned pyralid moths eggs or, preferably, inoculated the recombinant baculovirus derived from AcMNPV by use soaking method the above-mentioned pyralid moths eggs in the liquid containing the recombinant baculovirus derived from AcMNPV. Also, incubate pyralid moths eggs (inoculated the recombinant baculovirus derived from AcMNPV) for a time sufficient to express at least one recombinant protein.

[0162] Finally, cultured for a time sufficient to express the recombinant protein and, collect above-mentioned pyralid moths eggs comprising at least one recombinant protein and, store frozen at 20 C. condition. At above-mentioned 20 C. frozen condition, pyralid moths eggs can be stored for up to about one year, it is possible to supply to all over the world through the process of refrigeration transportation using aircraft and ship.

[0163] The process (3) of producing products by harvesting and purifying recombinant proteins from pyralid moths eggs of the present invention, the above-mentioned pyralid moths eggs comprising at least one recombinant protein and, store frozen at 20 C. condition, and it supplied. And one or more recombinant proteins are included and crushes the above-mentioned pyralid moths eggs stored in the frozen. Finally, from crushed liquids of above-mentioned pyralid moths eggs comprising at least one recombinant protein is isolated and purified to produce the final recombinant protein product.

[0164] The present invention described above, in the technical field of the present invention, various modifications and applications can be made by the ordinarily skilled in the art, the scope of the technical idea according to the present invention should be defined by the following claims.