Hepatitis C virus (HCV) is a single-stranded RNA virus
that affects 130–150 million people worldwide as a
chronic infection [1]. In HCV-infected patients, viral
replication has been demonstrated not only in hepatocytes
but also in cells of the immune system, such as B
cells, monocytes, and CD4+ and CD8+ T lymphocytes
[2–6]. In this laboratory, it was uncovered that primary
T lymphocyte cultures, generated by ex vivo treatment
of peripheral blood mononuclear cells (PBMC) from
healthy individuals with a T cell-inducing mitogen phytoheamagglutin
(PHA), are susceptible to wild-type
(patient-derived) HCV and capable of supporting its
replication at a level comparable to that of in vivo infected
lymphoid cells [6, 7]. Furthermore, these cells were able to
produce infectious virions that de novo infected lymphocytes
[7]. It was also uncovered that patient-derived HCV
is significantly more infectious to primary T cells than
laboratory-derived clonal strains of HCV [8]. As well, HCV
infection of T cells requires surface expression of CD5, and
transfection of HCV non-susceptible T cell lines with CD5
renders these cells susceptible to infection [9].
HCV infection causes chronic hepatitis C (CHC) in up
to 85 % of those afflicted, while acute HCV infection is
thought to spontaneously resolve in 15-25 % of cases [1].
Resolution of hepatitis C appears to be a result of a robust
HCV-specific T cell-mediated response. In HCV-infected
chimpanzees, representing the closest animal model of
human HCV infection, recovery from hepatitis C and a
drop in plasma HCV loads to levels undetectable
ไวรัสตับอักเสบซี Hepatitis C virus (HCV) is a single-stranded RNA virus
สายเดี่ยวสายที่มีผลต่อ130 that affects 130- –150 150 million people worldwide as a
ล้านคนทั่วโลกเป็นการติดเชื้อเรื้อรัง[ ในผู้ป่วยที่ติดเชื้อไวรัสตับอักเสบซี แต่ในเซลล์ตับ แต่ยังอยู่ในเซลล์ของระบบภูมิคุ้มกันของร่างกายเช่น เซลล์ [ - 6] ในห้องปฏิบัติการนี้มันถูกค้นพบว่าหลักT การรักษาของเซลล์ในเลือดโมโนนิวเคลียร์(จากบุคคลที่มีสุขภาพที่มีการกระตุ้นให้เกิดเซลล์T mitogen phytoheamagglutin (PHA) (ไวรัสตับอักเสบซีและมีความสามารถในการสนับสนุนของการจำลองแบบในระดับที่เทียบเท่ากับที่ของการติดเชื้อในร่างกายเซลล์ต่อมน้ำเหลือง[ chronic infection [1]. In HCV-infected patients, viral
replication has been demonstrated not only in hepatocytes
but also in cells of the immune system, such as B
cells, monocytes, and CD4+ and CD8+ T lymphocytes
[2–6]. In this laboratory, it was uncovered that primary
T lymphocyte cultures, generated by ex vivo treatment
of peripheral blood mononuclear cells (PBMC) from
healthy individuals with a T cell-inducing mitogen phytoheamagglutin
(PHA), are susceptible to wild-type
(patient-derived) HCV and capable of supporting its
replication at a level comparable to that of in vivo infected
lymphoid cells [6, 7]. Furthermore, these cells were able to
produce infectious virions that de novo infected lymphocytes
[7]. It was also uncovered that patient-derived HCV
is significantly more infectious to primary T cells than
laboratory-derived clonal strains of HCV [8]. As well, HCV
infection of T cells requires surface expression of CD5, and
transfection of HCV non-susceptible T cell lines with CD5
renders these cells susceptible to infection [9].
HCV infection causes chronic hepatitis C (CHC) in up
to 85 % of those afflicted, while acute HCV infection is
thought to spontaneously resolve in 15-25 % of cases [1].
Resolution of hepatitis C appears to be a result of a robust
HCV-specific T cell-mediated response. In HCV-infected
chimpanzees, representing the closest animal model of
human HCV infection, recovery from hepatitis C and a
drop in plasma HCV loads to levels undetectable
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