Perspective de producere a hormonului biosimilar de creștere uman recombinat în Republica Moldova
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RUSNAC, Liliana, CAZACU, Radu, TODIRAŞ, Mihail, SCUTARI, Corina, VALICA, Vladimir. Perspective de producere a hormonului biosimilar de creștere uman recombinat în Republica Moldova. In: Buletinul Academiei de Ştiinţe a Moldovei. Ştiinţe Medicale, 2022, nr. 3(74), pp. 160-164. ISSN 1857-0011. DOI: https://doi.org/10.52692/1857-0011.2022.3-74.30
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Buletinul Academiei de Ştiinţe a Moldovei. Ştiinţe Medicale
Numărul 3(74) / 2022 / ISSN 1857-0011

Perspective de producere a hormonului biosimilar de creștere uman recombinat în Republica Moldova

Prospects of biosimilar recombinant human growth hormone manufacture in the Republic of Moldova

Перспективы производства биоаналогов рекомбинантного человеческого гормона роста в Республике Молдова

DOI:https://doi.org/10.52692/1857-0011.2022.3-74.30
CZU: 615.357.012:582.282.232(478)

Pag. 160-164

Rusnac Liliana, Cazacu Radu, Todiraş Mihail, Scutari Corina, Valica Vladimir
 
Universitatea de Stat de Medicină şi Farmacie „Nicolae Testemiţanu“
 
 
Disponibil în IBN: 3 martie 2023


Rezumat

În cadrul colaborării între USMF «N.Testemițanu», întreprinderea farmaceutică Balkan Pharmaceuticals și ICGEB a fost efectuat transferul tehnologic la etapa extrapolării de la faza de laborator la faza pilot a proceselor creării băncii celulelor de lucru și creșterii tulpinilor de Pichia pastoris în paharul Erlenmeyer. Pentru obţinierea hormonului de creştere recombinat în calitate de sistem de expresie a fost selectat Pichia pastoris, care posedă numeroase avantaje comparativ cu alte organisme, inclusiv folding-ul proteinelor, modificarile posttranslaționale ale proteinelor și manipularea ușoară. Gena modificată GH1 a somatropinei umane recombinate a fost introdusă în genomul culturii de Pichia pastoris cu ajutorul restrictazelor în apropierea promotorului genei AOX1, în calitate de vector servind plasmidul pPIC9K. Gena GH1 a fost activată de promotorul genei AOX1 care poate fi indus cu uşurinţă de prezenţa metanolului în mediul de cultură. Ulterior, la secvenţa modificată s-a adaogat secvenţa ”Prepro-alpha Factor Leader” de la Saccharomyces cerevisiae pentru ca somatropina obţinută să fie secretată în mediul de cultură. În cadrul procesului de transfer tehnologic au fost examinate influența procedeelor tehnologice alese asupra unor parametri ale produsului obținut, au fost elaborate Regulamente Tehnologice pentru procesele de stocare pe durată scurtă și pe termen lung al celulelor de Pichia pastoris și pentru procesul de preparare a inocului, inoculare și creștere a tulpinilor de P. pastoris cu hormonul de creștere uman recombinat în paharul Erlenmeyer. Au fost elaborate Proceduri Standarte de Operare ale proceselor de creare a băncii celulelor de lucru, determinării activității biologice in-vitro a preparatului hormonul de creștere uman recombinat, cu implimentarea ulterioară în procesul de producere a biosimilarului rhGH la întreprinderea SC Balkan Pharmaceuticals SRL.

In collaboration of SUMPh „N.Testemițanu”, the pharmaceutical company Balkan Pharmaceuticals and ICGEB the technology transfer during scale-up from the laboratory phase to the pilot phase of the processes of creating the working cell bank and growing Pichia pastoris strains in the Erlenmeyer flask were carried out. Pichia pastoris was selected for recombinant growth hormone as an expression system, which has many advantages over other organisms, including protein folding, post-translational changes in protein, and easy handling. The GH1 altered recombinant human somatropin gene was introduced into the genome of Pichia pastoris culture using restriction near the AOX1 gene promoter as a vector serving the pPIC9K plasmid. The GH1 gene was activated by the AOX1 gene promoter which can be easily induced by the presence of methanol in the culture medium. Subsequently, the „Prepro-alpha Factor Leader” sequence from Saccharomyces cerevisiae was added to the modified sequence so that the obtained somatropin could be secreted into the culture medium. In the technological transfer process the influence of the chosen technological processes on some parameters of the obtained product were examined, Technological Regulations were developed for short and long term storage processes of Pichia pastoris cells and for the process of inoculum preparation, inoculation and growth of P. pastoris strains with recombinant human growth hormone in the Erlenmeyer flask. Standard Operating Procedures were developed for the processes of creating the working cell bank, determining the in-vitro biological activity of the recombinant human growth hormone preparation, with subsequent implementation in the process of producing rhGH biosimilar at CS Balkan Pharmaceuticals Ltd.

В сотрудничестве с ГМФУ «Н.Тестемицану», фармацевтической компанией Balkan Pharmaceuticals и ICGEB был проведен технологический трансфер на этапе масштабирования от лабораторной фазы к пилотной фазе процессов создания рабочего банка клеток и выращивания штаммов Pichia pastoris в колбах Эрленмейера. В качестве системы экспрессии для рекомбинантного гормона роста была выбрана Pichia pastoris, имеющая ряд преимуществ по сравнению с другими организмами, включая укладку белка, посттрансляционные изменения в белке и простоту в обращении. Измененный GH1 рекомбинантный ген соматропина человека вводили в геном культуры Pichia pastoris с помощью рестрикции вблизи промотора гена AOX1 в качестве вектора, использовали плазмид pPIC9K. Ген GH1 был активирован промотором гена AOX1, который можно легко индуцировать посредством присутствия метанола в культуральной среде. Затем к модифицированной последовательности добавляли последовательность «препро-альфа-лидер фактора» из Saccharomyces cerevisiae, чтобы полученный соматропин мог секретироваться в культуральную среду. В процессе технологического трансфера изучено влияние выбранных технологических процессов на некоторые параметры получаемого продукта, разработаны Технологические Регламенты для процесса кратковременного и длительного хранения клеток Pichia pastoris и для процесса приготовления инокулята, инокуляции и выращивания P. pastoris с рекомбинантным гормоном роста человека в колбе Эрленмейера. Разработаны Стандартные Операционные Процедуры для процессов создания рабочего банка клеток, определения биологической активности препарата рекомбинантного гормона роста человека in vitro с последующим внедрением в процесс производства биоаналога rhGH на предприятии Balkan Pharmaceuticals ООО.

Cuvinte-cheie
hormon biosimilar de creștere uman recombinat, producere farmaceutică autohtonă, transfer tehnologic, Pichia pastoris, plasmid pPIC9K,

biosimilar recombinant human growth hormone, domestic pharmaceutical manufacture, technology transfer, Pichia pastoris, pPIC9K plasmid,

биоаналог рекомбинантного гормона роста человека, отечественное фармацевтическое производство, трансфер технологий, Pichia pastoris, pPIC9K плазмид

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