Nepidermin

Chemical compound From Wikipedia, the free encyclopedia

Nepidermin (INN proposed),[2] also known as recombinant human epidermal growth factor (rhEGF), is a recombinant form of human epidermal growth factor (EGF) and a cicatrizant (a drug that promotes wound healing through formation of scar tissue). As a recombinant form of EGF, nepidermin is an agonist of the epidermal growth factor receptor (EGFR), and is the first EGFR agonist to be marketed.[3][4] It was developed by Cuban Center for Genetic Engineering and Biotechnology (CIBG), and has been marketed by Heber Biotech as an intralesional injection for diabetic foot ulcer under the trade name Heberprot-P since 2006.[5][6] As of 2016, Heberprot-P had been marketed in 23 countries,[7] but remains unavailable in the United States. In 2015, preparations were made to conduct the Phase III trials required for FDA approval,[8][9] however as of 2023 developments in U.S.-Cuba relations have stymied importation of the drug from Cuba.

Trade namesHeberprot-P, Easyef, Genesoft, Kang He Su, Regen-D[1]
Other namesRecombinant human epidermal growth factor; rhEGF; DWP-401
Routes of
administration
intralesional injection; Topical
CAS Number
Quick facts Clinical data, Trade names ...
Nepidermin
Clinical data
Trade namesHeberprot-P, Easyef, Genesoft, Kang He Su, Regen-D[1]
Other namesRecombinant human epidermal growth factor; rhEGF; DWP-401
Routes of
administration
intralesional injection; Topical
Identifiers
  • H-Asn-Ser-Asp-Ser-Glu-Cys-Pro-Leu-Ser-His-Asp-Gly-Tyr-Cys-Leu-His-Asp-Gly-Val-Cys-Met-Tyr-Ile-Glu-Ala-Leu-Asp-Lys-Tyr-Ala-Cys-Asn-Cys-Val-Val-Gly-Tyr-Ile-Gly-Glu-Arg-Cys-Gln-Tyr-Arg-Asp-Leu-Lys-Trp-Trp-Glu-Leu-Arg-OH
CAS Number
PubChem CID
ChemSpider
UNII
CompTox Dashboard (EPA)
ECHA InfoCard100.241.060 Edit this at Wikidata
Chemical and physical data
FormulaC270H401N73O83S7
Molar mass6222.03 g·mol−1
3D model (JSmol)
  • CC[C@H](C)[C@@H](C(=O)NCC(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CS)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC1=CC=C(C=C1)O)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC2=CNC3=CC=CC=C32)C(=O)N[C@@H](CC4=CNC5=CC=CC=C54)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(=N)N)C(=O)O)NC(=O)[C@H](CC6=CC=C(C=C6)O)NC(=O)CNC(=O)[C@H](C(C)C)NC(=O)[C@H](C(C)C)NC(=O)[C@H](CS)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CS)NC(=O)[C@H](C)NC(=O)[C@H](CC7=CC=C(C=C7)O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](C)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H]([C@@H](C)CC)NC(=O)[C@H](CC8=CC=C(C=C8)O)NC(=O)[C@H](CCSC)NC(=O)[C@H](CS)NC(=O)[C@H](C(C)C)NC(=O)CNC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC9=CN=CN9)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CS)NC(=O)[C@H](CC1=CC=C(C=C1)O)NC(=O)CNC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC1=CN=CN1)NC(=O)[C@H](CO)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CS)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CO)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CO)NC(=O)[C@H](CC(=O)N)N
  • InChI=1S/C270H401N73O83S7/c1-24-134(19)217(262(420)293-112-201(355)298-161(69-74-205(359)360)229(387)301-160(45-35-82-286-269(279)280)228(386)333-192(119-428)255(413)307-162(68-73-198(274)352)230(388)316-176(94-141-54-64-150(350)65-55-141)241(399)304-159(44-34-81-285-268(277)278)227(385)325-186(105-212(373)374)248(406)313-169(87-127(5)6)235(393)302-158(43-31-33-80-272)226(384)318-179(97-144-108-289-156-41-29-27-39-153(144)156)243(401)319-178(96-143-107-288-155-40-28-26-38-152(143)155)242(400)305-164(71-76-207(363)364)231(389)312-170(88-128(7)8)236(394)310-167(267(425)426)46-36-83-287-270(281)282)341-250(408)174(92-139-50-60-148(348)61-51-139)300-203(357)113-292-261(419)214(131(13)14)340-264(422)216(133(17)18)339-259(417)195(122-431)335-246(404)182(101-200(276)354)322-257(415)191(118-427)332-220(378)137(22)297-234(392)175(93-140-52-62-149(349)63-53-140)315-225(383)157(42-30-32-79-271)303-247(405)185(104-211(371)372)326-237(395)168(86-126(3)4)311-219(377)136(21)296-224(382)163(70-75-206(361)362)309-265(423)218(135(20)25-2)342-251(409)177(95-142-56-66-151(351)67-57-142)317-233(391)166(78-85-433-23)308-256(414)194(121-430)336-263(421)215(132(15)16)338-204(358)114-291-223(381)184(103-210(369)370)323-244(402)180(98-145-109-283-124-294-145)320-238(396)171(89-129(9)10)314-258(416)193(120-429)334-240(398)173(91-138-48-58-147(347)59-49-138)299-202(356)111-290-222(380)183(102-209(367)368)324-245(403)181(99-146-110-284-125-295-146)321-254(412)190(117-346)330-239(397)172(90-130(11)12)328-260(418)197-47-37-84-343(197)266(424)196(123-432)337-232(390)165(72-77-208(365)366)306-252(410)189(116-345)331-249(407)187(106-213(375)376)327-253(411)188(115-344)329-221(379)154(273)100-199(275)353/h26-29,38-41,48-67,107-110,124-137,154,157-197,214-218,288-289,344-351,427-432H,24-25,30-37,42-47,68-106,111-123,271-273H2,1-23H3,(H2,274,352)(H2,275,353)(H2,276,354)(H,283,294)(H,284,295)(H,290,380)(H,291,381)(H,292,419)(H,293,420)(H,296,382)(H,297,392)(H,298,355)(H,299,356)(H,300,357)(H,301,387)(H,302,393)(H,303,405)(H,304,399)(H,305,400)(H,306,410)(H,307,413)(H,308,414)(H,309,423)(H,310,394)(H,311,377)(H,312,389)(H,313,406)(H,314,416)(H,315,383)(H,316,388)(H,317,391)(H,318,384)(H,319,401)(H,320,396)(H,321,412)(H,322,415)(H,323,402)(H,324,403)(H,325,385)(H,326,395)(H,327,411)(H,328,418)(H,329,379)(H,330,397)(H,331,407)(H,332,378)(H,333,386)(H,334,398)(H,335,404)(H,336,421)(H,337,390)(H,338,358)(H,339,417)(H,340,422)(H,341,408)(H,342,409)(H,359,360)(H,361,362)(H,363,364)(H,365,366)(H,367,368)(H,369,370)(H,371,372)(H,373,374)(H,375,376)(H,425,426)(H4,277,278,285)(H4,279,280,286)(H4,281,282,287)/t134-,135-,136-,137-,154-,157-,158-,159-,160-,161-,162-,163-,164-,165-,166-,167-,168-,169-,170-,171-,172-,173-,174-,175-,176-,177-,178-,179-,180-,181-,182-,183-,184-,185-,186-,187-,188-,189-,190-,191-,192-,193-,194-,195-,196-,197-,214-,215-,216-,217-,218-/m0/s1
  • Key:GVUGOAYIVIDWIO-UFWWTJHBSA-N
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Various forms of rhEGF are marketed for the treatment of diabetic foot ulcers, wounds, and alopecia (hair loss) in Vietnam, the Philippines, Thailand, and China.[1][3][4]

Production

According to Heber Biotech, nepidermin is made by insering the 53-amino acid human EGF sequence into yeast.[10] A 1991 paper from Cuba seems to describe its production in more detail.[11] An improved process was described in 2009.[12]

Other rhEGFs

Several other products containing recombinant human EGF have been marketed. The potencies of these products can differ by the expression system used, despite all intending to match the structure of human EGF.[13]

Instead of measuring by mass, the international unit system from the World Health Organization provides a way to describe the potency-adjusted amount of rhEGF.[14][15] However, the WHO does not prescribe a specific way of measuring the potency. rhEGF bioassay remains a field in active development.[16]

Other preparations

More information Brand name, Manufacturer ...
List of rhEGF preparations
Brand nameManufacturerFormIndicationDescription
Heberprot-PHeber (Cuba)Lyophilized powderUlcerSee above. Drugs.com reports marketing in Vietnam and Georgia.[1]
EasyefDaewoong (Korea)SprayUlcer, woundsSee above. Drugs.com reports marketing in Thailand and Vietnam.[1]
Genesoft (金因舒)[17]Uni-Bio (Hong Kong); Licensed to GeneTech (China)Eye dropCorneal damage (?)Approved in China (Rx, 国药准字 S20040006). Yeast expression system.[18]
GeneTime (金因肽)SprayApproved in China (Rx, 国药准字 S200100378). E. coli expression system.[19]
Kang He Su (康合素)[20]Haohai (China)Lyophilized powdersecond-degree burns, wounds, ulcersApproved in China (Rx, 国药准字 S200100946, S20010099). To be used as a part of wound dressing, soaked in gauze. E. coli expression system.[21]
Yi Fu (易孚)[22]Gelsecond-degree burns, wounds, ulcersApproved in China (Rx). Yeast expression system.[23]
Regen-D[24]Bharat Biotech (India)GelDiabetic foot ulcerApproved in India and Thailand.[1] E. coli expression system.[25] Bharat also markets a gel with silver sulfadiazine and chlorhexidine for burns.[26]
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See also

References

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