Cocer Peptides fɛ       a bɛ kalo 1 bɔ 

BƐƐRƐ KUNNAFONIW NI FƐRƐW KUNNAFONIW BƐƐ MIN BƐ NI WEBSITE KAN NA, U BƐ KUNNAFONIW FƆLƆ DƆRƆN NI KALANSENW YE.  

Fɛn minnu bɛ di nin siti in kan, olu dabɔra ɲininiw dɔrɔn kama in vitro. Sɛgɛsɛgɛli in vitro (latinkan na: *in glass*, o kɔrɔ ye gilasi minɛnw na) bɛ kɛ hadamaden farikolo kɔkan. Nin fura ninnu tɛ furaw ye, Ameriki dumuniko ni furako ɲɛmɔgɔso (FDA) ma sɔn u ma, wa u man kan ka kɛ ka furakɛli bana, bana walima bana si bali, k’a furakɛ, walima k’a furakɛ. A dagalen don kosɛbɛ sariya fɛ ka nin fɛn ninnu don hadamaden walima bagan farikolo la cogo o cogo.

Melanotan-2 ka ɲɛfɔli kunbaba

Melanotan-2 (MT-2) ye heptapeptide cyclique synthétique ye ani a ye α-melanocyte-stimulating hormone (α-MSH) ɲɔgɔnna ye. A jɔyɔrɔ ka bon kosɛbɛ melanositɛriw lawuli ɔrimɔni tali la. MT-2 bɛ a nɔw jira fɔlɔ ni a ni melanocortin 1 minɛbaga (MC1R) bɛ ɲɔgɔn sɔrɔ. MC1R bɛ jira kosɛbɛ melanositɛriw sanfɛ. Ni MT-2 sirilen don nin minɛbaga in na, a bɛ taamasiɲɛw sira caman daminɛ selilu kɔnɔ, a laban na, a bɛ melanini sɔrɔli ni a jɛnsɛnni sabati, o bɛ kɛ sababu ye ka fari kulɛri Changer.

Jaa 1 Melanotan II ka baarakɛcogo.

Melanotan-2 kɛcogo dɔnniya siratigɛ la

(1) Tanning Mechanism (Fɛɛrɛ min bɛ kɛ ka ɲɛgɛnw kɛ

Melanini sɔrɔli sabatili : MT-2 sirilen kɔfɛ MC1R la, a bɛ adenilati siklazi baara, ka adenosini trifosfati (ATP) jiginni sabati ka kɛ adenosini monofosfate cyclique (cAMP) ye selilɛri kɔnɔ. cAMP bɛ kɛ i n’a fɔ ciden filanan walasa ka poroteyini kinase A (PKA) baara, o min bɛ ɲɛda ni sɛbɛnnikɛlan fitinin (MITF) fosiriya. MITF ye fɛnba ye min bɛ melanin dilanni ɲɛnabɔ, a bɛ melanin dilanni anzimuw jiracogo kɔrɔta i n’a fɔ tirosinizi, tirosinizi ni tirosinizi bɛ tali kɛ poroteyini 1 (TRP-1), ani tirosinizi ni tirosinizi ni poroteyini 2 (TRP-2), o bɛ melanin dilanni teliya.

Pigment granules tilatilali ni u tali : Ka fara melanin sɔrɔli sabatili kan, MT-2 bɛ nɔ bila pigment granules tilatilali ni u tali fana la melanocytes kɔnɔ. Kɔlɔsiliw y’a jira ko MT-2 bɛ se ka farikolojɔli dumuniw baara ɲɛnabɔ minnu bɛ tali kɛ sitokolo la, ka melanosomew (organelles minnu kɔnɔ melanin bɛ sɔrɔ) ka taa ɲɛ ka bɔ melanocytes cɛmancɛ yɔrɔ la ka taa selilu lamini yɔrɔw la, ka laban ka melanin bila keratinocytes la, o bɛ fari kulɛri bɛɛ dibi.

(2) Ka a suma ni laadala farikolo-ɲɛnajɛ-fɛɛrɛw ye

Laadalata farikolojidɛsɛ fɛɛrɛw dantigɛliw : Laadalata ɲɛgɛnw kɛcogo fɔlɔ ye tile bilali ye ani ɲɛgɛnw kɛli ye. Nka, ka mɛn ka kɛ fiɲɛ ye min bɛ wele ko ultraviolet (UV) — a kɛra tile yeelen ye min bɛ bɔ a yɛrɛ la walima a kɛra UV ye min bɛ bɔ farikolo ɲɛgɛnw na — o bɛ faratiba lase mɔgɔ ma. UV fiɲɛ bɛ se ka tilejeni ni bilenni bila mɔgɔ la, wa ni a kɛra a la waati jan kɔnɔ, o bɛ dɔ fara fari kansɛri farati kan ka sɔrɔ ka fari kɔrɔya teliya, o bɛ na ni kurukuruw ni kurukuruniw ye.

Nafa minnu bɛ Melanotan-2 Tanning (Melanotan-2) la : O ni MT-2 bɛ farikolojidɛsɛ kɛcogo min na, o tɛ tali kɛ UV (UV) sɔrɔli la, o bɛ dɔ bɔ farikolo tiɲɛni farati la hakili la min bɛ sɔrɔ UV fɛ. Ka fara o kan, MT-2 bɛ se ka kɛ sababu ye ka fari kulɛri caman yeli kɔlɔsi waati kunkurunnin kɔnɔ, wa o farikolojidɛsɛ nɔ bɛ kɛ kelen ye, o bɛ farikolo ɲɛda cogoya bɛnbaliya koɲɛw bali minnu bɛ sɔrɔ tilebɔcogo jugu fɛ walima farikolojidɛsɛ dilancogo la.

(3) A kɛcogo misaliw MT-2 Tanning

Farikoloɲɛnajɛ ni farikoloɲɛnajɛ: MT-2 bɛ kɛ ka caya farikoloɲɛnajɛ ni farikoloɲɛnajɛ kanubagaw fɛ. Tuma caman na, o mɔgɔw bɛ farikolo ɲɛgɛnw ɲini walasa ka farikolo ɲɛfɔli jira, o b’a to u farikolo bɛ kɛ fɛn ye min bɛ mɔgɔ kabakoya kosɛbɛ sangabon kan walima degeliw kɛtuma na. MT-2 b’a to u bɛ se ka nɛgɛ fari ɲɛ ɲininen sɔrɔ joona k’a sɔrɔ u ma u jigi da tile kan waati jan kan walima ka to ka farikolojidɛsɛ dilan, o la u ɲɛda bɛɛ bɛ bonya.

Don o don farikolojidɛsɛ kanubagaw: Mɔgɔ dɔw minnu bɛ ɲɛda ɲɛgɛn min bɛ kɛ cogo la, olu fana b’u mago don MT-2 la. Minnu b’a fɛ fari kɛnɛman, n’a ɲɛ ye nɛgɛ ye, nka u haminanko ye fari tiɲɛni ye min bɛ se ka kɛ ka bɔ laadala farikolojidɛsɛ fɛɛrɛw la, MT-2 bɛ fɛɛrɛ wɛrɛ di u ma. U bɛ se ka farikolojidɛsɛ kɛcogo kɛ so kɔnɔ ni a kɛcogo bɛnnenw ye, o min ka nɔgɔn kosɛbɛ.

Melanotan-2 jɔyɔrɔ fari lakanani na

(1) Fɛɛrɛ min bɛ fototalan

Melanin ka yeelen lakanani nɔ: Melanin min bɛ dilan MT-2 fɛ, o bɛ ultraviolet (UV) fanga minɛ, k’a sɛmɛntiya ka kɛ funteni fanga ye min tɛ kojugu kɛ, ka a tiɲɛ, o bɛ dɔ bɔ farikolokisɛw ka ADN tiɲɛni tilennen na, min bɛ sɔrɔ UV fiɲɛ fɛ. Melanin bɛ kɛ fari lakanani parasol ye min bɛ sɔrɔ a yɛrɛ la, a bɛ UV yeelen minɛ ka ɲɛ ani k’a jɛnsɛn sani a ka se farikolo yɔrɔ jugumanw ma, o la, a bɛ dɔ bɔ UV ka jeninida caman cili ni selilɛriw tiɲɛni na.

Oksidan kɛlɛli baara cayalenba : MT-2 tɛ melanin sɔrɔli dɔrɔn sabati nka a bɛ farikolo tangalanw ka baara fana bonya farikolo yɔrɔw kɔnɔ, i n’a fɔ superoxide dismutase (SOD) ani glutathione peroxidase (GSH-Px). Nin farikolo tangalanw bɛ se ka oksizɛni suguya minnu bɛ se ka kɛ (ROS) olu bɔ yen minnu bɛ sɔrɔ UV fiɲɛ fɛ, i n’a fɔ superoxide aniions ani hydroxyl radicals, o bɛ ROS bali ka oksidan tiɲɛni kɛ farikolokisɛw la, farikolojɔli dumuniw na ani ADN la, o la, farikolokisɛw ka farikoloɲɛnajɛ baarakɛcogo bɛ to sen na.

(2) Fari lakanani

Baganw ka kɔlɔsili dɔw la, bagan minnu kɛra k’a lajɛ, olu furakɛra ni MT-2 ye ka sɔrɔ ka u bila UV fiɲɛ na. Jateminɛw y’a jira ko tilejeni hakɛ dɔgɔyara kosɛbɛ MT-2 furakɛli kulu la, ni ɲɛgɛnɛsiralabanaw ni funubanakisɛw doncogo yɔrɔw dɔgɔyara. Ka fara o kan, ADN tiɲɛni taamasiɲɛw hakɛ i n’a fɔ 8-hydroxy-2’-deoxyguanosine (8-OHdG) farikolokisɛw la, olu hakɛ dɔgɔyara, o b’a jira ko MT-2 bɛ se ka mɔgɔ tanga ADN tiɲɛni ma min bɛ sɔrɔ UV fɛ.

In vitro selilɛriw ka sɛgɛsɛgɛliw fana y’a jira ko MT-2 farikolo lakanani nafa ka bon. Melanocytes walima keratinocytes minnu sɛnɛna, olu furakɛra ka kɔn ni MT-2 ye, ka sɔrɔ ka u bila UV sigida la. Nin ɲinini in y’a jira ko seliluw ka ɲɛnamaya hakɛ cayara, apoptose hakɛ dɔgɔyara, ani farikolo tangalanw ka baara cayara selilu kɔnɔ, ni ɲɛtaa kɛra oksidan degun taamasiɲɛw la. O b’a jira ko MT-2 bɛ se ka fari ka se ka UV tiɲɛni kunbɛn selilɛriw ta fan fɛ.

(3) Baara kɛcogo ɲɛfɔcogo  

Mɔgɔ kelen-kelen minnu bɛ to ka kɛnɛyako kɛ, i n’a fɔ farikoloɲɛnajɛla ni kɛnɛyabaarakɛlaw, ni u bɛ tile la ka mɛn, o bɛ u bila UV tiɲɛni na. MT-2 bɛ se ka fari tangacogo min kɛ, o bɛ se ka kɛ sababu ye ka u tanga fɛɛrɛ wɛrɛ ma. Ni aw bɛ MT-2 kɛ ka ɲɛ ni tile tangacogo kɔrɔw faralen don ɲɔgɔn kan i n’a fɔ tilekunfura kɛli ani tilefura don, fari tangacogo UV fiɲɛ ma bɛ se ka bonya ka taa a fɛ, o bɛ dɔ bɔ tilejeni, farikolojidɛsɛ, ani faritanabanaw la minnu bɛ sɔrɔ UV tali kuntaalajan fɛ. Jamanaden dɔw, ka da u ka jamu kan, UV tali kuntaalajan tariku, walima fari cogoya kɛrɛnkɛrɛnnenw, olu farati ka bon fari kansɛri ma. MT-2 ka fototalan ni farikolo tangalanw bɛ se ka dɛmɛ don ka dɔ bɔ u fari kansɛri sɔrɔli la.

Ɲininikalan cogoya min bɛ yen sisan

Sisan, MT-2 ka baarakɛcogo faamuyali ka bon kosɛbɛ, o la, a siricogo ni MC1R minɛbaga ye, selilu kɔnɔ taamasiɲɛw siraw baarakɛli, ani melanin dilanni n’a tilali labɛnni. Nka, kunnafoni dɔw bɛ to ka sɛgɛsɛgɛ ka taa a fɛ, i n’a fɔ MT-2 bɛ se ka nɔ minnu bila melanositɛriw ka farikoloɲɛnajɛ la waatijan kɔnɔ ani a ka baarakɛcogo danfaralenw mɔgɔ kelen-kelen bɛɛ la minnu fari suguya tɛ kelen ye.

Kuncɛli

Melanotan-2 jɔyɔrɔ ka bon dɔnniya siratigɛ la farikolojidɛsɛ ni fari lakanani na. Ni an bɛ ɲɛnajɛko siratigɛ la, a bɛ farikoloɲɛnajɛ kɛcogo ɲuman di mɔgɔ kelen-kelen bɛɛ ma minnu bɛ farikoloɲɛnajɛ kɛcogo ɲuman ɲini, n’o tɛ a jigi da UV sɔrɔli kan, o la, a bɛ u yɛrɛ tanga tilejeni ni fari kɔrɔya ma minnu bɛ tali kɛ laadala tilebɔ ni ɲɛgɛnw dilanni na, ani ka ɲinini fila dafa, minnu bɛ lakana ni baarakɛcogo ɲuman kan ɲɛgɛnw dilanni na. Fari lakanani siratigɛ la, MT-2 bɛ lafasali kɛ UV fiɲɛw kama, a kɛtɔ ka melanin sɔrɔli sabati ani ka farikolo tangalanw seko bonya, ka sugandi kuraw di kɛnɛma baara kɛbagaw ma.

Sosow (Sɔrɔyɔrɔw).

[1] McKenzie N, Gonzalez N, Huang C, ani mɔgɔ wɛrɛw. Afisɛn jiracogoPS09 Baarakɛlaw ka ko kɛlenw Melanotan II pikiri kɛli la farikolojidɛsɛ kama[J]. Angilɛw ka farikoloɲɛnajɛ gafe, 2024,191(Supplement_1):i179-i180.DOI:10.1093/bjd/ljae090.380.

[2] Wekwejt P, Wojda U, Kiryk A. Melanotan-II bɛ hakilijagabɔbaliya kɔsegin min bɛ sɔrɔ HF dumuni kuntaala surun fɛ[J]. Biomedicine & Pharmacothérapie, 2023,165:115129.DOI:10.1016/j.biopha.2023.115129. Bamako, Mali.

[3] Gilhooley E, Daly S, McKenna D. Melanotan II baarakɛcogo: Ɛntɛrinɛti barokɛyɔrɔw ka jogoɲini kalan[J]. Farikoloɲɛnajɛ, 2021,237(6):995-999.DOI:10.1159/000514492.

[4] Gao L, Yu Z, Meng D, ani mɔgɔ wɛrɛw. Melanotan II (MTII) analogue: Melanotropin kura min bɛ baara kɛ ni fanga ye ka ɲɛsin wulu fari ma[J]. Protéine ni péptide sɛbɛnw, 2015,22(8):762-766.DOI:10.2174/0929866522666 15062210194 4.

[5] Ryakhovsky V. V., Khachiyan G. A., Kosovova N. F., ani a ɲɔgɔnnaw. Melanotan II[J] labɛnni furakɛli fasa fɔlɔ. Beilstein ka gafe min bɛ chimie organique, 2008,4:39.DOI:10.3762/bjoc.4.39.

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