Oligonucleotide compound and method for treating nidovirus infections
First Claim
1. A method of inhibiting replication of a nidovirus in virus-infected animal cells, comprising (a) exposing the cells to an oligonucleotide compound (i) having a nuclease-resistant backbone, (ii) capable of uptake by the cells, (iii) containing between 8-25 nucleotide bases, and (iv) having a sequence complementary to at least 8 bases contained in one of:
- (1) a sequence in a 5′
leader sequence of the nidovirus'"'"' positive-strand genomic RNA selected from the group consisting of SEQ ID NOS;
1-9, each sequence of which includes an internal transcription regulatory sequence; and
, (2) a sequence in a negative-strand 3′
subgenomic region of the virus selected from the group consisting of SEQ ID NOS;
10-18, each sequence of which includes an internal transcriptional regulatory sequence that is substantially complementary to the corresponding transcriptional regulatory sequence contained within SEQ ID NOS;
1-9, respectively; and
(b) by said exposing, forming within said cells a based-paired heteroduplex structure composed of one of (1) the virus positive-strand genomic RNA and the oligonucleotide compound, and (2) the negative-strand 3′
subgenomic region of the virus and the oligonucleotides compound, said structure being characterized by (1) a Tm of dissociation of at least 45°
C., and (2) disrupted base pairing between the transcriptional regulatory sequences in the 5′
leader region of the positive-strand viral genome and negative-strand 3′
subgenomic region, where the amount of compound to which the cells are exposed is sufficient inhibit nidovirus replication in the virus-infected cells.
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Abstract
A method and oligonucleotide compound for inhibiting replication of a nidovirus in virus-infected animal cells are disclosed. The compound (i) has a nuclease-resistant backbone, (ii) is capable of uptake by the infected cells, (iii) contains between 8-25 nucleotide bases, and (iv) has a sequence capable of disrupting base pairing between the transcriptional regulatory sequences in the 5′ leader region of the positive-strand viral genome and negative-strand 3′ subgenomic region. In practicing the method, infected cells are exposed to the compound in an amount effective to inhibit viral replication.
23 Citations
32 Claims
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1. A method of inhibiting replication of a nidovirus in virus-infected animal cells, comprising
(a) exposing the cells to an oligonucleotide compound (i) having a nuclease-resistant backbone, (ii) capable of uptake by the cells, (iii) containing between 8-25 nucleotide bases, and (iv) having a sequence complementary to at least 8 bases contained in one of: -
(1) a sequence in a 5′
leader sequence of the nidovirus'"'"' positive-strand genomic RNA selected from the group consisting of SEQ ID NOS;
1-9, each sequence of which includes an internal transcription regulatory sequence; and
,(2) a sequence in a negative-strand 3′
subgenomic region of the virus selected from the group consisting of SEQ ID NOS;
10-18, each sequence of which includes an internal transcriptional regulatory sequence that is substantially complementary to the corresponding transcriptional regulatory sequence contained within SEQ ID NOS;
1-9, respectively; and
(b) by said exposing, forming within said cells a based-paired heteroduplex structure composed of one of (1) the virus positive-strand genomic RNA and the oligonucleotide compound, and (2) the negative-strand 3′
subgenomic region of the virus and the oligonucleotides compound, said structure being characterized by(1) a Tm of dissociation of at least 45°
C., and(2) disrupted base pairing between the transcriptional regulatory sequences in the 5′
leader region of the positive-strand viral genome and negative-strand 3′
subgenomic region,where the amount of compound to which the cells are exposed is sufficient inhibit nidovirus replication in the virus-infected cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An oligonucleotide compound for use in inhibiting replication of a nidovirus in human cells, characterized by:
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(i) a nuclease-resistant backbone, (ii) capable of uptake by virus-infected human cells, (iii) containing between 8-25 nucleotide bases, (iv) having a sequence that is complementary to at least 8 bases contained in one of;
(1) a sequence in a 5′
leader sequence of the nidovirus'"'"' positive-strand genomic RNA selected from the group consisting of SEQ ID NOS;
1-9, each sequence of which includes an internal transcription regulatory sequence; and
,(2) a sequence in a negative-strand 3′
subgenomic region of the virus selected from the group consisting of SEQ ID NOS;
10-18, each sequence of which includes an internal transcriptional regulatory sequence that is substantially complementary to the corresponding transcriptional regulatory sequence contained within SEQ ID NOS;
1-9, respectively; and
(v) capable of forming with the nidovirus (1) positive-strand genomic RNA or (2) the negative-strand 3′
subgenomic region, a heteroduplex structure characterized by (1) a Tm of dissociation of at least 45°
C., and (2) a disrupted base pairing between the transcriptional regulatory sequences in the 5′
leader region of the positive-strand viral genome and negative-strand 3′
subgenomic region. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification