Surfactant protein A (SP-A) is a large multimeric protein found in the lungs. In addition to its immunoregulatory function in infectious respiratory diseases, SP-A is also used as a marker of lung adenocarcinoma. Despite the finding that SP-A expression levels in cancer cells has a relationship with patient prognosis, the function of SP-A in lung cancer progression is unknown. We investigated the role of SP-A in lung cancer progression by introducing the SP-A gene into human lung adenocarcinoma cell lines. SP-A gene transduction suppressed the progression of tumor in subcutaneous xenograft or lung metastasis mouse models. Immunohistochemical analysis showed that the number of M1 antitumor tumor-associated macrophages (TAMs) was increased and the number of M2 tumor-promoting TAMs was not changed in the tumor tissue produced by SP-Aeexpressing cells. In addition, natural killer (NK) cells were also increased and activated in the SP-Aeexpressing tumor. Moreover, SP-A did not inhibit tumor progression in mice depleted of NK cells. Taking into account that SP-A did not directly activate NK cells, these results suggest that SP-A inhibited lung cancer progression by recruiting and activating NK cells via controlling the polarization of TAMs. (Am J Pathol 2013 http:// dx
Flood syndrome is a rare complication of cirrhosis of liver accompanied by ascites and a sudden rupture of umbilical hernia causing drainage of ascitic fluid from abdominal cavity. We report management of a case of Flood syndrome which was caused by rupture of incisional hernia. The clinical picture was similar to well described and widely accepted Flood syndrome. A 70-year-old female with decompensated hepatitis C cirrhosis was transported to the emergency department with a sudden drainage of ascitic fluid after sudden dehiscence of pre-existing incisional hernia and diffuse abdominal tenderness. Initially, she was managed by applying ostomy bag and diuretics to reduce the ascites. On 8th day of admission, a 16 Fr. drain was percutaneously placed in the left lower abdominal quadrant to divert the fluid from the abdominal wall defect. On 13th day, 80% partial splenic embolization (PSE) was attempted to control portal hypertension to reduce the ascites volume. After PSE, the hepatic venous pressure gradient reduced from 28 to 21cm H
2
O. The peritoneal drain was removed on 16th day and she was discharged on 22nd day. We conclude that PSE and temporary percutaneous peritoneal drainage are useful option to manage Flood syndrome.
We report a case of hemoperitoneum and sepsis from transhepatic gallbladder perforation in an 87-year-old male with acute cholecystitis who had past history of endoscopic sphincterotomy for common bile duct stone. Contrast-enhanced computed tomography (CT) showed intrahepatic and subcapsular low density areas. A wall defect of gallbladder was seen in coronal and sagittal - sections at the liver bed. Fluids obtained through the paracentesis were hemorrhagic. Percutaneous transhepatic gallbladder drainage (PTGBD) was attempted. First cholangiography revealed an orifice of fistula. Further injection of contrast medium drained into the intrahepatic secondary abscess and intraperitoneal cavity confirming the diagnosis of transhepatic gallbladder perforation. We conclude that contrast-enhanced CT with coronal and sagittal - sections and cholangiography via PTGBD tube are useful to confirm diagnosis of transhepatic gallbladder perforation.
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