• 생약학회지
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• 제44권2호
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• pp.110-117
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• 2013

Cirsium japonicum (CJ) leaf (L) alcoholic extracts were investigated for analysis their active components (flavonoids and flavanolignans; silymarins) and inhibitory effect on transforming growth factor (TGF)-${\beta}$ induced hepatic stellate cells (HSCs, LX-2 cells) activation. The CJ root (R) extracts were also analyzed and compared with leaf extracts. Total flavonoid and polyphenol contents of the leaf extracts showed higher than those of the root extracts. The content of each flavonoid compound, which was analyzed by HPLC, in CJ-L extracts was also higher than in CJ-R extracts. The results of flavanolignans content in CJ-L and CJ-R extracts were consistent in flavonoid and polyphenol. We studied inhibitory effect of two extracts against TGF-${\beta}1$ induced HSCs activation. The CJ-L extracts significantly suppressed overexpression of profibrogenic factor, ${\alpha}$-smooth muscle actin and collagen-${\alpha}1$(I). The CJ-R extract also showed inhibitory effect on TGF-${\beta}1$ induced HSCs activation, but the efficacy was lower than in CJ-L extract. These results suggest that CJ-L may contribute to the fibrotic liver treatment.

• 생명과학회지
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• 제14권3호
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• pp.501-508
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• 2004

전통발효 식품인 간장으로부터 chitinase활성이 높으면서 갈변반응을 일으키는 균주인 CJ-3를 분리하여 갈변반응생성물이 면역기능, 항산화력 및 세포활성에 미치는 영향과 생화학적 특성을 규명하였다. 분리된 CJ-3 균주는 16S rDNA 염기서열분석에 의하여 Bacillus atrophaeus로 동정되었으며 분리된 균주의 분자량은 대략 31.0 kDa으로 colloidal chitin(0.5, 1.0, 2.0%)의 첨가에 의하여 chitinase 활성이 현저히 증가되었다 B. atrophaeus CJ-3에 의해서 유도되는 갈변반응물 200${\mu}\ell$ 첨가로 LPS에 의하여 유도되는 nitric oxide (NO) 활성을 45%까지 감소시켰다. MTT 분석을 통한 세포활성에서도 갈변반응물은 LPS에 의하여 세포활성을 정상수준으로 회복하였다. CJ-3. 균주의 DPPH 전자공여능법에 의한 항산화력은 갈변반응에 의하여 약 55% 증가하였다 . 이러한 결과들은 갈변반응생성물은 면역기능 및 세포활성을 증가시키는 것으로 추정된다. 분리된 균주의 최적 생육조건은 최적온도 37$^{\circ}C$, 최적 pH 7.0 및 염 농도는 9% NaCl농도까지는 잘 생육하는 것으로 나타났으며 분리된 균주의 주요 intracellular 유리아미노산은 glutamate로 나타났다.

• Toxicological Research
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• 제13권3호
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• pp.293-296
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• 1997

The acute toxicity study of CJ-50001, a recombinant granulocyte-colony stimulating factor (rG-CSF), was performed in Sprague Dawley (SD) rats and beagle dogs. CJ-50001 was administered up to maximum dose 5,000 $\mu\textrm{g}$/kg (i.v.) and 10,000 $\mu\textrm{g}$/kg (p.o.) in SD rats and 5,000 $\mu\textrm{g}$/kg (i.v.) in beagle dogs. In these experiments, there were no death and harmful clinical changes which were related to CJ-50001. In conclusion, $LD_{50}$ of CJ-50001 is over 5,000 $\mu\textrm{g}$/kg, i.v. in SD rats and beagle dogs, and over 10,000 $\mu\textrm{g}$/kg, p.o. in SD rats.

• Biomolecules & Therapeutics
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• 제5권4호
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• pp.384-389
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• 1997

Neutropenia is a major dose-limiting side effect of cancer chemotherapy. The therapeutic effects of CJ-50001 were examined on neutropenia caused by anticancer agents. Neutropenia was induced by cyclophosphomide (130 mg/kg), doxorubicin (4.5 mg/kg), and vincristine (1 mg/kg) in normal ICR mice and by cyclophosphamide (200 mg/kg) in CT26 adenocarcinoma bearing BALB/C mice. After the subcutaneous injection of anticancer agents, we administered subcutaneously recombinant human granulocyte-colonystimulating factor (100$\mu$g/kg/day) to mice in order to stimulate neutrophil production. In normal and tumor-bearing mice, neutrophil production efficacy of CJ-50001 (rG-CSF) was similar to that of Grasin. These results suggest that CJ-50001 could be effective in its clinical use for neutropenia treatment.

• Biomolecules & Therapeutics
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• 제7권1호
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• pp.97-104
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• 1999

A new antibiotic bead, CJ-40003 is a combination of three antibiotics, tobramycin, vancomycin and cefazolin embedded in bone cement, for the treatment of osteomyelitis. To evaluate the general pharmacological properties of CJ-40003, the effects of its active ingredients were investigated in mice, rats, dogs and isolated guinea pig ileum. The combination of three antibiotics (CA) did not affect general behavior, central nervous system, smooth muscles, gastrointestinal system, cardiovascular and respiratory system and water and electrolytes excretion when administered intravenously at the doses of 0.3, 1 and 3 mg/kg, respectively, into experimental animals. The CA had no effect on the contractile response of the isolated guinea pig ileum to various spasmogen at concentrations of 1, 3 and 10 $\mu\textrm{g}$/ml, respectively. In conclusion, the active ingredients of CJ-40003 showed no pharmacological effect in these studies.

• 월간양계
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• 제53권3호
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• pp.104-107
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• 2021

올해 초 CJ Feed&Care 김선강 대표이사가 취임했다. 김선강 대표이사는 국내 사료회사에서 지역부장에서 시작해 이후 CJ Feed&Care에서 커리어를 쌓아 정통 사료·축산인이다. 과거의 활동과 함께 올해 사업계획과 목표에 대해 들어보았다.

• 디지털융복합연구
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• 제11권12호
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• pp.41-47
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• 2013

국내 미디어기업에 대한 경영전략 사례 연구가 극히 드문 상황에서, 본 연구는 대표적인 뉴미디어 콘텐츠 기업인 CJ E&M에 대한 사례분석을 실시했다. 분석틀로는 CJ E&M의 출범과 다각화 과정에 대해서는 진화론적 관점을 적용하고, 출범 이후는 외부환경분석과 자원준거관점에 기반한 내부역량분석을 실시했다. CJ E&M은 그동안 수평 수직 다각화를 통해 규모의 시너지를 높이고, 타 미디어기업과는 달리 콘텐츠 강화 전략을 꾸준하게 전개한 점이 돋보인다. 또 엔터테인먼트 미디어 산업에 대한 열정과 의지의 리더십, 전문성 높은 인적 구성, 유연하고 창의적인 기업 문화, 효과적인 콘텐츠 포트폴리오 구성 등이 CJ E&M을 국내 미디어 선도기업으로 이끈 원동력이라고 평가할 수 있다. 그러나 경쟁과 성과를 지나치게 강조하는 조직 분위기와 오너의 의지에 따라 주요 사업이 결정되는 기업구조는 오히려 조직문화를 경색시키고 글로벌 경쟁력을 약화시킬 수 있다는 점을 주지할 필요가 있다.

• Toxicological Research
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• 제20권2호
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• pp.143-151
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• 2004

This study was to investigate single and repeated-dose toxicities of CJ-11555, an anticirrhotic agent, in Sprague-Dawley (SO) rats. In single-dose oral toxicity study, the test article were administered once by gavage to males and females at dose levels of 0 and 2,000 mg/kg. No dead animals and abnormal necropsy findings were found in control and CJ-11555 treated group. Therefore, the approximate lethal dose of CJ-11555 was considered to be higher than 2,000 mg/kg in rats. In the 4-week repeated oral toxicity study, the test article was administered once daily by gavage to male and female rats at dose levels of 0, 10, 50 and 200 mg/kg/day for 4-weeks. In clinical signs, yellow-colored urine and yellow hair coat were observed in the 50 and 200 mg/kg male and female groups. In hematology, erythrocyte count and hemoglobin were significantly decreased in the 200mg/kg male and female groups. In serum biochemistry, total cholesterol was significantly increased and aspartate aminotransferase (AST) was significantly decreased in the 50 or 200 mg/kg male and female groups. In histopathological examinations, centrilobular hepatocellular hypertrophy in the liver, congestion and pigmentation in the spleen, hyaline droplets in the kidney were observed in the 50 and 200 mg/kg male and female groups. In toxicokinetic study, CJ-11555 was dose-dependent in systemic exposure and showed better absorption in female with minimum accumulation after multidosing. Based on these results, it was concluded that the 4-week repeated oral dose of CJ-11555 resulted in the suppression of AST activity and centrilobular hepatocellular hypertrophy in both sexes at a dose level of 50 or 200 mg/kg/day. The target organ was estimated to be liver, spleen and male's kidney. The no-observed-adverse-effect level (NOAEL) for CJ-11555 in rats following gavage for at least 4-week is 10 mg/kg/day.

• 한국식품영양과학회지
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• 제38권4호
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• pp.509-516
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• 2009

메주로부터 곰팡이 및 세균 등에 생육 저해활성을 나타내는 균주 B. polyfermenticus CJ6을 분리 동정하였다. 분리 균주 B. polyfermenticus CJ6는 2단 대수기를 나타내는 생육 곡선상 특이점을 나타내었으며 배양 30시간 이후부터 최대 활성을 나타내었고 사멸기 이후 활성이 다소 감소되었으나 120시간까지 활성을 유지하였다. B. polyfermenticus CJ6의 항진균 활성 물질은 $70^{\circ}C$ 이상에서 활성이 감소되었으나 $121^{\circ}C$에서 15분간 열처리 시 역가가 완전히 소실되지 않았다. pH 안정성 실험에서는 pH $3.0{\sim}9.0$ 구간에서 안정한 활성을 나타내었으며, 각종 효소에 대한 영향에서 항진균 활성물질은 proteinase K, protease, ${\alpha}$-chymotrypsin 등의 단백분해효소 처리로 역가를 상실하거나 일부 감소되어 단백질성 물질임을 추정하였다. 균주의 항진균 활성 물질을 $C_{18}$ Sep-Pak column으로 부분 정제한 후 Tricine-SDS-PAGE 및 direct detection 실험을 통하여 분자량이 약 1.4 kDa의 물질임을 확인하였다. B. polyfermenticus CJ6가 생산하는 항진균 활성 물질은 기존에 거의 보고되지 않은 B. polyfermenticus 유래의 단백질성 항진균 활성 물질로서 천연보존제 및 천연항균제재로 사용이 기대되며, 이를 위하여 항진균 활성 물질들의 정제 및 구조분석 등의 연구가 필요하다.

• BMB Reports
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• 제45권3호
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• pp.177-182
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• 2012

Camellia japonica oil (CJ oil) has been used traditionally in East Asia to nourish and soothe the skin as well as help restore the elasticity of skin. CJ oil has also been used on all types of bleeding instances. However, little is known about its anti-inflammatory effects. Therefore, the anti-inflammatory effects of CJ oil and its mechanisms of action were investigated. CJ oil inhibited LPS-induced production of NO, $PGE_2$, and TNF-${\alpha}$ in RAW264.7 cells. In addition, expression of COX-2 and iNOS genes was reduced. To evaluate the mechanism of the anti-inflammatory activity of CJ oil, LPS-induced activation of AP-1 and NF-${\kappa}B$ promoters was found to be significantly reduced by CJ oil. LPS-induced phosphorylation of $I{\kappa}B{\alpha}$, ERK, p38, and JNK was also attenuated. Our results indicate that CJ oil exerts anti-inflammatory effects by downregulating the expression of iNOS and COX-2 genes through inhibition of NF-${\kappa}B$ and AP-1 signaling.