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barcelona . spain - European Association for the Study of the Liver

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BARCELONA . SPAIN<br />

150 POSTGRADUATE COURSE SYLLABUS ALCOHOLIC LIVER DISEASE 151<br />

APRIL 18 - 19/2012 THE INTERNATIONAL LIVER CONGRESS TM 2012<br />

NOTES<br />

CLINICAL CASE: LONG-TERM MANAGEMENT OF ALD<br />

A. De Gottardi<br />

Bern, Switzerland<br />

N. Goossens<br />

Geneva, Switzerland<br />

E-mail: Nicolas.Goossens@hcuge.ch<br />

A 48 year old man with chronic HCV infection, genotype 1b and cirrhosis (Child-Pugh B 7, MELD 14) comes<br />

<strong>for</strong> a routine visit to your outpatient clinic.<br />

Figure 3: The mechanisms underlying <strong>the</strong> hepatoprotective and antimicrobial effects <strong>of</strong> IL-22.<br />

Treatment <strong>of</strong> hepatocytes with IL-22 results in upregulation <strong>of</strong> many genes that prevent hepatocyte apoptosis<br />

and stimulate hepatocyte proliferation. IL-22 also downregulates lipogenic genes such as SREBP-1 in <strong>the</strong><br />

liver, <strong>the</strong>reby ameliorating fatty liver disease. Finally, IL-22 stimulates hepatocytes to produce lipocalin-2,<br />

which may contribute to IL-22 inhibition <strong>of</strong> bacterial infection.<br />

In summary, IL-22 treatment appears to have multiple beneficial effects on alcoholic hepatitis, such as<br />

preventing hepatocellular damage, promoting hepatocyte proliferation, and inhibiting bacterial infection.<br />

In addition, <strong>the</strong> side effect <strong>of</strong> clinical treatment with IL-22 may be minimal because IL-22 only targets<br />

epi<strong>the</strong>lial cells such as hepatocytes. Clinical trials examining combination <strong>the</strong>rapy with IL-22 or IL-22 plus<br />

corticosteroids <strong>for</strong> patients with severe alcoholic hepatitis are warranted.<br />

He was treated <strong>for</strong> alcoholic hepatitis 5 years ago and after this episode he continued to drink excessively.<br />

After an inpatient treatment <strong>for</strong> alcoholism, he stopped his alcohol intake 6 months ago. Currently he<br />

drinks 3 alcohol-free beers a day. He injected intravenous drugs when he was a teenager and he currently<br />

consumes intranasal cocaine once a month. He smokes 20 cigarettes per day.<br />

His medication includes losartan, sertralin, propranolol, spironolactone and torasemide.<br />

He works as a barkeeper and has a stable family situation.<br />

An ultrasound examination with intravenous contrast shows a 3 cm lesion in <strong>the</strong> right liver with arterial<br />

enhancement and washout suggesting hepatocellular carcinoma. There is, in addition, a partial thrombosis<br />

<strong>of</strong> <strong>the</strong> splenomesenteric confluence. There is no ascites and <strong>the</strong> spleen is 15 cm in diameter.<br />

Laboratory analyses show albumin 31 g/L, bilirubin 32 umol/L (1.87 mg/dL), creatinine 101 umol/L (1.14<br />

mg/dL), INR 1.5, alpha-fetoprotein 20 ug/L.<br />

REFERENCES<br />

Gao B, Bataller R. Alcoholic liver disease: pathogenesis and new <strong>the</strong>rapeutic targets.<br />

Gastroenterology 2011;141:1572-85.<br />

Lucey M, Mathurin P, Morgan T. Alcoholic hepatitis. N Engl J Med 2009, 360: 2758–2769.<br />

Radaeva S, Sun R, Pan HN, Hong F, Gao B. Interleukin 22 (IL-22) plays a protective role in T<br />

cell-mediated murine hepatitis: IL-22 is a survival factor <strong>for</strong> hepatocytes via STAT3 activation.<br />

Hepatology 2004;39:1332-42.<br />

Zenewicz LA, Yancopoulos GD, Valenzuela DM, Murphy AJ, Karow M, Flavell RA. Interleukin-22<br />

but not interleukin-17 provides protection to hepatocytes during acute liver inflammation.<br />

Immunity 2007;27:647-59.<br />

Park O, Wang H, Weng H, Feigenbaum L, Li H, Yin S, Ki SH, Yoo SH, Dooley S, Wang FS,<br />

Young HA, Gao B. In vivo consequences <strong>of</strong> liver-specific interleukin-22 expression in mice:<br />

Implications <strong>for</strong> human liver disease progression. Hepatology 2011;54:252-61.<br />

Yang L, Zhang Y, Wang L, Fan F, Zhu L, Li Z, Ruan X, Huang H, Wang Z, Huang Z, Huang Y,<br />

Yan X, Chen Y. Amelioration <strong>of</strong> high fat diet induced liver lipogenesis and hepatic steatosis by<br />

interleukin-22. J Hepatol 2010;53:339-47.<br />

Ki SH, Park O, Zheng M, Morales-Ibanez O, Kolls JK, Bataller R, Gao B. Interleukin-22<br />

treatment ameliorates alcoholic liver injury in a murine model <strong>of</strong> chronic-binge ethanol<br />

feeding: role <strong>of</strong> signal transducer and activator <strong>of</strong> transcription 3.<br />

Hepatology 2010;52:1291-300.<br />

Xing WW, Zou MJ, Liu S, Xu T, Wang JX, Xu DG. Interleukin-22 protects against acute alcoholinduced<br />

hepatotoxicity in mice. Biosci Biotechnol Biochem 2011;75:1290-4.

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