๋ฉํด๋ก๋ ํ๋ฏผ
**๋ฉํด๋ก๋ ํ๋ฏผ**(๋์ดํธ๋ก์ ๋จธ์คํ๋)์ ๊ฐ๋ ฅํ ์ธํฌ์ฃผ๊ธฐ ๋นํน์ด์ ํญ์ข ์์ ์ ๋๋ค. ์ญ์ฌ์ ์ผ๋ก ํํ์๋ฒ์ ์ฌ์ฉ๋ ์ต์ด์ ๋์ดํธ๋ก์ ๋จธ์คํ๋ ์ํฌํ์ ๋ก ์ค์ํ ์๋ฏธ๋ฅผ ๊ฐ์ต๋๋ค. ์์ํ์์๋ ์ฃผ๋ก ๋ฆผํ๋ง๋ด๊ณ ์ข ์์ ๋ณด์กฐ ์น๋ฃ์ ๋ก ์ฌ์ฉ๋๋ฉฐ, ํนํ ์ฌ๋ฐ์ฑ ๊ฐ ๋ฐ ๊ณ ์์ด ๋ฆผํ์ข ์ ์ํ **MOPP ๊ตฌ์ ์๋ฒ**(Mechlorethamine, Oncovin [๋นํฌ๋ฆฌ์คํด], Procarbazine, Prednisone)์ 'M'์ผ๋ก ๊ฐ์ฅ ์ ์๋ ค์ ธ ์์ต๋๋ค. > **์์ ์์ :** ๋ฉํด๋ก๋ ํ๋ฏผ์ ๊ฐ๋ ฅํ ๋ฐํฌ์ฑ(์กฐ์ง ๊ดด์ฌ์ฑ) ๋ฌผ์ง์ ๋๋ค. ์ ๋งฅ ํฌ์ฌ ์ ํ๊ด ์ธ ์ ์ถ์ ํผํ๊ธฐ ์ํด ๊ทน๋์ ์ฃผ์๋ฅผ ๊ธฐ์ธ์ฌ์ผ ํ๋ฉฐ, ์ ์ถ ์ ์ฌ๊ฐํ ์กฐ์ง ๊ดด์ฌ์ ํ๋ฝ์ ์ด๋ํ ์ ์์ต๋๋ค. ๊ฐ๊ฒฉ ๊ธ๋ฑ ๋ฐ ๊ณต๊ธ ๋ฌธ์ ๋ก ์ธํด ์ผ๋ถ ์์ ์ข ์ํ์๋ค์ ๊ตฌ์ ์๋ฒ์์ ๋ฅํฐ๋ ธ๋ง์ด์ ์ด๋ ๋ก๋ฌด์คํด(CCNU)์ผ๋ก ๋์ฒดํ๊ธฐ๋ ํฉ๋๋ค. ๋ํ ์ ์ฑ ํ์ ๋ฐ ๋ณต์๋ฅผ ์น๋ฃํ๊ธฐ ์ํด ์ฒด๊ฐ ๋ด๋ก ํฌ์ฌ๋ ์ ์์ผ๋ฉฐ, ์ด๋ ์ฅ๋ง ํ๋ฉด์ ์ ์ฐฉ์ ์ ๋ฐํ๋ ๊ฒฝํ์ ๋ก ์์ฉํฉ๋๋ค.
์์ฉ ๊ธฐ์ : Mechlorethamine is a **bifunctional alkylating agent**. * **Mechanism:** It undergoes intramolecular cyclization to form a highly reactive aziridinium ion. This ion reacts with nucleophilic sites on DNA (primarily the N7 position of guanine). * **Pathway:** Alkylation โ **Cross-linking of DNA strands** (interstrand and intrastrand) โ Inhibition of DNA replication and RNA transcription โ Cell death (apoptosis). * It is **cell cycle-phase nonspecific**, meaning it can kill cells in any phase of the cell cycle, though it is most toxic to rapidly dividing cells. * When given intracavitarily, it induces a strong inflammatory response on serous membranes, leading to sclerosis and obliteration of the cavity space.
๋๋ฌผ ์ข ๋ณ ์ฉ๋
- Lymphoma rescue (MOPP protocol) ยท 3 mg/m2 IV ยท IV ยท given on days 0 and 7 (or days 0 and 14) of a 28 day protocol ยท 28 day cycles ยท Given as part of a protocol that includes vincristine (or vinblastine), procarbazine, and prednisone (or prednisolone).
- Lymphoma rescue (MOPP protocol) ยท 3 mg/m2 IV ยท IV ยท given on days 0 and 7 (or days 0 and 14) of a 28 day protocol ยท 28 day cycles ยท Given as part of a protocol that includes vincristine (or vinblastine), procarbazine, and prednisone (or prednisolone).
์ฉ๋์ ๋ฉดํ ์์ ์ ๋ฌธ๊ฐ๋ฅผ ์ํ ์์ ์ฐธ๊ณ ์๋ฃ์ ๋๋ค. ํญ์ ์ต์ ๋ผ๋ฒจ๊ณผ ๊ฐ๋ณ ํ์์ ๋ํด ํ์ธํ์ญ์์ค.
ํฌ์ฌ ๊ฒฝ๋ก
๊ธ๊ธฐ
- Known infection
- Prior anaphylactic reaction to mechlorethamine
- Pregnancy (Category D teratogen)
- Anemia (relative)
- Bone marrow depression (relative)
- Tumor cell infiltration into bone marrow (relative)
- Patients who have received previous extensive chemotherapy or radiotherapy (relative)
์ด์๋ฐ์
- Bone marrow depression (leukopenia, thrombocytopenia)
- Vomiting
- Nausea
- Ototoxicity (with high doses or regional perfusion)
- Alopecia
- Hyperuricemia
- Hepatotoxicity
- Peripheral neuropathy
- GI ulcers
- Severe tissue sloughing (if extravasated)
์ฝ๋ฌผ ์ํธ์์ฉ
- Immunosuppressant drugs (e.g., azathioprine, cyclophosphamide, corticosteroids) ยท May increase the risk of severe infection.
- Myelosuppressive drugs (e.g., chloramphenicol, flucytosine, amphotericin B, colchicine) ยท Additive bone marrow depression; use with extreme caution.
- Live vaccines ยท Increased risk of vaccine-induced infection or decreased vaccine efficacy; use with caution or avoid.
๋ชจ๋ํฐ๋ง
- CBC with platelets (at least every 1-2 weeks until stable; then every 3 months)
- Liver function tests (initially before starting treatment and then every 3-4 months)
- Injection site for any signs of extravasation (redness, swelling, pain)
๊ณผ์ฉ๋
Because of the extreme toxic potential of this agent, overdoses must be strictly avoided. Dosages must be calculated carefully (usually based on Body Surface Area in m2). Overdose will likely result in profound, potentially fatal myelosuppression and severe gastrointestinal toxicity.
VetSheet ์ฝ๋ฌผ ๋ ํผ๋ฐ์ค๋ ๋ฉดํ ์์ ์ ๋ฌธ๊ฐ๋ฅผ ์ํ ์์ ์์ฌ๊ฒฐ์ ๋ณด์กฐ ๋๊ตฌ์ด๋ฉฐ, ์ ๋ฌธ์ ํ๋จ์ด๋ ์ ์กฐ์ฌ์ ์ต์ ๋ผ๋ฒจ์ ๋์ ํ์ง ์์ต๋๋ค.